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All Wiring Diagrams for Chevrolet Suburban C1997 2500 model

AIR CONDITIONING

5.7L

5.7L (VIN R), A/C Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), A/C Wiring Diagram for Chevrolet Suburban C1997 2500:

79

(engine harn, near egr breakout)
(engine harness, in fuse-relay center breakout)
(engine harness, near fuse-relay center)
(engine harness, near underhood lamp breakout)
(exc 4.3 l)
(fwd lamps harn, 5cm from right headlamp breakout)
(hvac harness, 15cm from recirc door breakout)
(i/p harn, 28 cm from cluster breakout)
(i/p harness, in hvac connector breakout)
(rear hvac control harness, 5 cm from hvac logic module breakout)
(right side of engine)
A/c comp mini fuse 10a
A/c compressor clutch
A/c compressor clutch relay (in underhood fuse/relay center)
A/c compressor cycling switch (on top right of a/c accumulator)
A/c ctrl
A/c disable
A/c high pressure cutout switch (on bottom rear of a/c compressor)
A/c low pressure cutout switch (on top rear of a/c compressor)
A/c maxi fuse 3 50a
A/c req
A/c switch
Air temp dr sensor
Aux fan ctrl
Aux fan mini fuse 30a
Auxiliary cooling fan motor
Auxiliary cooling fan relay (exc 4.3l) (in underhood fuse/relay center)
Battery
Blower motor
Blower resistor (under right side of i/p, on heater housing)
Blower switch
Center
Defogger element
Diode
Fan req
Front mode door motor (under i/p on heater- a/c case)
Front temperature door motor (under i/p on heater- a/c case)
Fuse block
G101 (right front of engine compartment)
G119 (right front of engine)
G120
G120 (right side of engine)
G202 (behind left side of i/p)
Ground
Heater and a/c control module
High blower relay (under i/p on top of heater-a/c case)
Hot at all times
Hot in run
Hot in run or start
Htr a/c fuse 12 25a
Ign mini fuse 10a
Ignition
Illumination
Interior lights system
Mode signal
Off
Pnk
Rear defogger system
Recirculation door motor (under i/p on heater- a/c case)
Red
Relay ctrl
S110
S128
S146
S147
S147 (engine harn, near egr breakout)
S180
S185
S186
S244
S268
S298
S308
Tan
Underhood fuse-relay
Underhood fuse-relay center
Valve ctrl
Vehicle control module (left rear of engine compt)
Water valve (suburban, utility, crew cab only) (right center of intake area)

Auxiliary Heater Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Auxiliary Heater Wiring Diagram for Chevrolet Suburban C1997 2500:

38

(at right "c" pillar)
(front to rear body harn, near rear dome lamp breakout)
(front to rear body harness, near rear dome lamp breakout)
(i/p harness, 16 cm from radio harness breakout)
(not used)
(rear hvac harn, 11 cm from blower relays breakout)
(rear hvac harness, 4.5 cm from blower relays breakout)
(rear hvac harness, 7 cm from blower motor breakout)
A/c maxi fuse 50a
Blower motor (behind left rear wheelwell)
Blower resistor
C 1995 vftc
Convenience center (under left side of i/p)
Fuse block
G202 (below i/p, near data link connector)
G905
Hot in run
Hot w/headlamp switch in park or head
Illum fuse 14 10a
Low
Med
Off
Rear auxiliary heater control
Rear high blower relay (on auxiliary heater module)
Rear low blower relay (on auxiliary heater module)
Rear medium blower relay (on auxiliary heater module)
Red
Rr hvac fuse 5 10a
S110 (engine harness, near fuse/relay center breakout)
S217 (i/p harness, 16 cm from cluster breakout)
S218
S400
S401
S402
S403
S440
S442
Underhood fuse/relay center

Auxiliary Heater-A/C Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Auxiliary Heater-A/C Wiring Diagram for Chevrolet Suburban C1997 2500:

68

(front to rear body harness, near rear dome lamp breakout)
(front to rear lamps harness, 12 cm from right rear door speaker breakout)
(not used)
(overhead console)
(rear hvac harness, 17 cm from blower motor relays breakout)
(rear hvac control harness, 19 cm from hvac module breakout)
(rear hvac harn, 11 cm from blower motor relays breakout)
(rear hvac harn, 12 cm from hvac logic module breakout)
(rear hvac harn, 25 cm from hvac logic module breakout)
(rear hvac harn, 5 cm from hvac logic module breakout)
(rear hvac harness, 11 cm from blower motor relays breakout)
77 or 1923
A/c maxi fuse 3 50a
Auxiliary heater & a/c logic module
Auxiliary heater and a/c control module (front)
Auxiliary heater and a/c control module (rear)
Battery
Blower motor (behind left rear wheelwell)
Blower resistor
C 1995 vftc
C10
Control input
Control lamp
Convenience center (under left side of i/p)
Front ctrl out
Frt ctrl a/c
Frt ctrl heat
Fuse block
G905 (at right "c" pillar)
Ground
Hi blower
Hot in run
Ignition
Interior lights system
Interior lights system
Lo blower
Logic mod input
Med blower
Mode door out
Rear auxiliary mode door actuator (under i/p, on heater a/c case)
Rear auxiliary temp door actuator (under i/p, on heater a/c case)
Rear ctrl a/c
Rear ctrl heat
Rear ctrl out
Rear high blower relay (on auxiliary heater-a/c module)
Rear low blower relay (on auxiliary heater-a/c module)
Rear medium blower relay (on auxiliary heater-a/c module)
Rear mode ctrl
Rear temp ctrl
Red
Rr hvac fuse h5 10a
S110 (engine harness, near fuse/relay center)
S305
S306
S308
S309
S400
S401
S402
S403
S410
S440
S441
S442
Temp door out
Underhood fuse/relay center
W/ htr
W/o htr

Heater Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Heater Wiring Diagram for Chevrolet Suburban C1997 2500:

40

(engine harness)
(hvac harness, 15cm from recirc door breakout)
(i/p harn, 24 cm from i/p cluster breakout)
(right side of engine)
A/c maxi fuse 3 50a
Air temp dr sensor
Battery
Blower motor
Blower resistor (under right side of i/p, on heater housing)
Blower switch
C10
Defogger element
Front mode door motor (under i/p on heater- a/c case)
Front temperature door motor (under i/p on heater- a/c case)
Fuse block
G120
G202 (behind left side of i/p)
Ground
Heater and a/c control module
High blower relay (under i/p on top of heater-a/c case)
Hot at all times
Hot in run
Htr a/c fuse 12 25a
Ignition
Illumination
Interior lights system
Mode signal
Off
Rear defogger system
Recirc ctrl
Recirculation door motor (under i/p on heater- a/c case)
Red
S110 (engine harness, near fuse-relay center)
S147
S243 (hvac harness, 4 cm from recirc door breakout)
S244
S268 (i/p harness, 6.5 cm from hvac connector breakout)
S298
Tan
Underhood fuse-relay center

6.5L

6.5L (VIN F), A/C Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), A/C Wiring Diagram for Chevrolet Suburban C1997 2500:

70

(engine harn, 30cm from breakout to ebcm)
(engine harn, near egr breakout)
(engine harness, in fuse-relay center breakout)
(engine harness, near fuse-relay center)
(hvac harness, 15cm from recirc door breakout)
(i/p harn, 28 cm from cluster breakout)
(i/p harn, 8 cm from radio harness breakout)
(i/p harness, in hvac connector breakout)
(rear hvac control harness, 5 cm from hvac logic module breakout)
(right side of engine)
A/c comp mini fuse 10a
A/c compressor clutch
A/c compressor clutch relay (in underhood fuse/relay center)
A/c compressor cycling switch (in low pressure line near compressor)
A/c ctrl
A/c disable
A/c high pressure cutout switch (on a/c compressor)
A/c low pressure cutout switch (on low pressure line)
A/c maxi fuse 3 50a
A/c req
A/c switch
Air temp dr sensor
Aux fan ctrl
Battery
Blower motor
Blower resistor (under right side of i/p, on heater housing)
Blower switch
Center
Defogger element
Diode
Front mode door motor (under i/p on heater- a/c case)
Front temperature door motor (under i/p on heater- a/c case)
Fuse block
G120
G120 (right side of engine)
G202 (behind left side of i/p)
Ground
Heater and a/c control module
High blower relay (under i/p on top of heater-a/c case)
Hot at all times
Hot in run
Hot in run or start
Htr a/c fuse 12 25a
Ign mini fuse 10a
Ignition
Illumination
Interior lights system
Mode signal
Off
Pnk
Powertrain control module (left rear of engine compt)
Rear defogger system
Recirculation door motor (under i/p on heater- a/c case)
Red
S107
S110
S146
S147
S147 (engine harn, near egr breakout)
S185
S186
S212
S244
S268
S298
S308
Tan
Underhood fuse-relay
Valve ctrl
Water valve (suburban, utility, crew cab only) (right center of intake area)

Auxiliary Heater Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Auxiliary Heater Wiring Diagram for Chevrolet Suburban C1997 2500:

38

(at right "c" pillar)
(front to rear body harn, near rear dome lamp breakout)
(front to rear body harness, near rear dome lamp breakout)
(i/p harness, 16 cm from radio harness breakout)
(not used)
(rear hvac harn, 11 cm from blower relays breakout)
(rear hvac harness, 4.5 cm from blower relays breakout)
(rear hvac harness, 7 cm from blower motor breakout)
A/c maxi fuse 50a
Blower motor (behind left rear wheelwell)
Blower resistor
C 1995 vftc
Convenience center (under left side of i/p)
Fuse block
G202 (below i/p, near data link connector)
G905
Hot in run
Hot w/headlamp switch in park or head
Illum fuse 14 10a
Low
Med
Off
Rear auxiliary heater control
Rear high blower relay (on auxiliary heater module)
Rear low blower relay (on auxiliary heater module)
Rear medium blower relay (on auxiliary heater module)
Red
Rr hvac fuse 5 10a
S110 (engine harness, near fuse/relay center breakout)
S217 (i/p harness, 16 cm from cluster breakout)
S218
S400
S401
S402
S403
S440
S442
Underhood fuse/relay center

Auxiliary Heater-A/C Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Auxiliary Heater-A/C Wiring Diagram for Chevrolet Suburban C1997 2500:

68

(front to rear body harness, near rear dome lamp breakout)
(front to rear lamps harness, 12 cm from right rear door speaker breakout)
(not used)
(overhead console)
(rear hvac harness, 17 cm from blower motor relays breakout)
(rear hvac control harness, 19 cm from hvac module breakout)
(rear hvac harn, 11 cm from blower motor relays breakout)
(rear hvac harn, 12 cm from hvac logic module breakout)
(rear hvac harn, 25 cm from hvac logic module breakout)
(rear hvac harn, 5 cm from hvac logic module breakout)
(rear hvac harness, 11 cm from blower motor relays breakout)
77 or 1923
A/c maxi fuse 3 50a
Auxiliary heater & a/c logic module
Auxiliary heater and a/c control module (front)
Auxiliary heater and a/c control module (rear)
Battery
Blower motor (behind left rear wheelwell)
Blower resistor
C 1995 vftc
C10
Control input
Control lamp
Convenience center (under left side of i/p)
Front ctrl out
Frt ctrl a/c
Frt ctrl heat
Fuse block
G905 (at right "c" pillar)
Ground
Hi blower
Hot in run
Ignition
Interior lights system
Interior lights system
Lo blower
Logic mod input
Med blower
Mode door out
Rear auxiliary mode door actuator (under i/p, on heater a/c case)
Rear auxiliary temp door actuator (under i/p, on heater a/c case)
Rear ctrl a/c
Rear ctrl heat
Rear ctrl out
Rear high blower relay (on auxiliary heater-a/c module)
Rear low blower relay (on auxiliary heater-a/c module)
Rear medium blower relay (on auxiliary heater-a/c module)
Rear mode ctrl
Rear temp ctrl
Red
Rr hvac fuse h5 10a
S110 (engine harness, near fuse/relay center)
S305
S306
S308
S309
S400
S401
S402
S403
S410
S440
S441
S442
Temp door out
Underhood fuse/relay center
W/ htr
W/o htr

Heater Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Heater Wiring Diagram for Chevrolet Suburban C1997 2500:

40

(engine harness)
(hvac harness, 15cm from recirc door breakout)
(i/p harn, 24 cm from i/p cluster breakout)
(right side of engine)
A/c maxi fuse 3 50a
Air temp dr sensor
Battery
Blower motor
Blower resistor (under right side of i/p, on heater housing)
Blower switch
C10
Defogger element
Front mode door motor (under i/p on heater- a/c case)
Front temperature door motor (under i/p on heater- a/c case)
Fuse block
G120
G202 (behind left side of i/p)
Ground
Heater and a/c control module
High blower relay (under i/p on top of heater-a/c case)
Hot at all times
Hot in run
Htr a/c fuse 12 25a
Ignition
Illumination
Interior lights system
Mode signal
Off
Rear defogger system
Recirc ctrl
Recirculation door motor (under i/p on heater- a/c case)
Red
S110 (engine harness, near fuse-relay center)
S147
S243 (hvac harness, 4 cm from recirc door breakout)
S244
S268 (i/p harness, 6.5 cm from hvac connector breakout)
S298
Tan
Underhood fuse-relay center

ANTI-LOCK BRAKES

5.7L

5.7L (VIN R), Anti-lock Brake Wiring Diagrams for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Anti-lock Brake Wiring Diagrams for Chevrolet Suburban C1997 2500:

57

(engine harn, 6.5 cm from underhood fuse relay center)
(engine harn, near ebcm break- out)
(engine harn, near tail- lamp breakout)
(left side of i/p) data link connector
(right lower front of engine)
4wd sw input
4wd telltale feed
Abs ind
Abs lamp control
Abs maxi fuse 4 60a
Brake fuse 18 10a
Brake ind
Brake lamp control
Brake pressure warning switch
Brake sw input
Brake sw output
Daytime running lamps module (left side of i/p)
Diode 1 (underhood fuse/relay center)
Ebcm ground
Electronic brake control module (left front wheelhouse)
G119
Gauges fuse 4 10a
Hot at all times
Hot in run
Hot in run, bulb test or start
I/p fuse block
Ign
Instrument cluster
Left front wheel speed sensor
Lft frt sensor (+)
Lft frt sensor (-)
Nca
Pnk
Pump motor ground
Pump motor power
Red
Right front wheel speed sensor
Rt frt sensor (+)
Rt frt sensor (-)
S107
S111
S147
S150
S151
S152
S157
S213
Serial data line
Tan
Tcc/ stoplamp switch (top of brake pedal)
Underhood fuse-relay center
Vehicle control module (left front wheelhouse)
Vehicle speed sensor (left side of transmission/ transfer case)
Vehicle speed sig
Vss (+)
Vss (-)
Vss sig

6.5L

6.5L (VIN F), Anti-lock Brake Wiring Diagrams for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Anti-lock Brake Wiring Diagrams for Chevrolet Suburban C1997 2500:

52

(engine harn, 4 cm from i/p breakout)
(engine harness, 13 cm in ebcm breakout)
(left side of i/p) data link connector
(top right rear of engine)
4wd input c2
4wd sw input
A/t only
Abs ind
Abs lamp control
Abs maxi fuse 4 60a
Brake fuse 18 10a
Brake ind
Brake lamp control
Brake pressure warning switch
Brake sw input
Daytime running lamps module (below left side of i/p)
Diode 1 (underhood fuse/relay center)
Ebcm ground
Electronic brake control module (left front side of frame)
G117
Gauges fuse 4 10a
Hot at all times
Hot in run
Hot in run or start
I/p fuse block
Ign
Instrument cluster
Left front wheel speed sensor
Lft frt sensor (+)
Lft frt sensor (-)
Nca
Pnk
Powertrain control module (right side of i/p)
Pump motor ground
Pump motor power
Red
Right front wheel speed sensor
Rt frt sensor (+)
Rt frt sensor (-)
S107
S111 (engine harn, near ebcm breakout)
S150
S152
S157
S213
Serial data line
Serial data signal
Tan
Underhood fuse-relay center
Vehicle speed sensor buffer (near steering column)
Vss sig
Vss sig out

COMPUTER DATA LINES

Computer Data Lines for Chevrolet Suburban C1997 2500

List of elements for Computer Data Lines for Chevrolet Suburban C1997 2500:

30

(behind left side of i/p)
(gasoline) g134 (diesel) g120
(gasoline-front top of engine, diesel-right top of cylinder head)
13 cm into ebcm breakout)
Aux pwr fuse 7 25a
Data clss
Data clss 2
Data link connector (left side of i/p)
Diesel
Dlc control
Electronic brake control module (left front wheelhouse)
G202
Gasoline
Hot at all times
I/p fuse block
Inflatable restraint sensing and diagnostic module (under driver's seat carpet)
Power steering control module (center of i/p)
Powertrain control module (right side of i/p)
Prog enable
Radio
Remote control door lock receiver (behind center of i/p)
S204
S215
S272
S280 (i/p harness, approx 5 cm into dlc breakout)
Serial data
Tan
Transfer case control module (steering column support bracket)
Uart data
Vehicle control module (engine compt, near ebcm)

COOLING FAN

5.7L

5.7L (VIN R), Cooling Fan Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Cooling Fan Wiring Diagram for Chevrolet Suburban C1997 2500:

20

(fwd lamps harn, 5cm from right headlamp breakout)
(i/p harness, 8 cm from radio breakout)
(in underhood fuse/relay center)
A/c comp mini fuse 10a
Aux fan ctrl
Aux fan mini fuse 30a
Auxiliary cooling fan motor
Auxiliary cooling fan relay
Fan req
G101 (right front of engine compartment)
Heater and a/c control module
Hot at all times
Hot in run or start
Recirculation door motor (under i/p on heater-a/c case)
Red
Relay ctrl
S128
S212
Underhood fuse-relay center
Vehicle control module (left rear of engine compt)

CRUISE CONTROL

5.7L

5.7L (VIN R), Cruise Control Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Cruise Control Wiring Diagram for Chevrolet Suburban C1997 2500:

43

(i/p harn, 20 cm from cluster breakout)
(i/p harn, 20 cm from heater/ a/c breakout)
(i/p harn, left rear of engine compt)
(i/p harness, 6 cm from steering column harness breakout)
4000 pulses/mile
A/t
A12
A13
A14
A15
Brake fuse 18 10a
Clutch pedal switch (top of clutch pedal)
Cruise control module (front of engine compt near left fender)
Cruise control switch
Cruise fuse 6 10a
Cruise on input
Cruise status
Disengage input
G120 (right side of engine)
Ground
Hot at all times
Hot in run
I/p fuse block
Ignition
M/t
Off
R/a
Resume/accel input
S/c
S153
S215
S220
S221
S222
S299
Set/coast input
Stop/haz fuse 1 20a
Tcc/stoplamp brake switch (top of brake pedal)
Vehicle control module (vcm) (in engine compt, on left fender)
Vehicle speed input
Vehicle speed sensor (vss) (left side of transmission)
Vss return
Vss signal

6.5L

6.5L (VIN F), Cruise Control Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Cruise Control Wiring Diagram for Chevrolet Suburban C1997 2500:

32

(engine harn, 4 cm from i/p harness breakout)
(i/p harn, 12 cm from steering column breakout)
(i/p harn, 6 cm from steering column breakout)
A/t
A12
A13
A14
A15
Brake fuse 18 10a
Clutch pedal switch (top of clutch pedal)
Cruise fuse 6 10a
Cruise on input
D11
D15
Disengage input
Fuse block
Hot at all times
Hot in run
M/t
Multifunction lever
Off
Powertrain control module (pcm) (behind center of i/p)
R/a
Resume/accel input
S/c
S220
S299
Set/coast input
Stop/haz fuse 1 20a
Tcc/stoplamp switch (top of brake pedal)
Vehicle speed sensor (vss) (left side of transmission)
Vss return

DEFOGGERS

Defogger Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Defogger Wiring Diagram for Chevrolet Suburban C1997 2500:

24

(left side of i/p) convenience center
C222
G202 (behind left side of i/p)
G305 (right "b" pillar)
Hot in run
Hot in run or start
Htr-a/c fuse 12 25a
Hvac control module
I/p fuse block
Left cargo door contactor
Left rear cargo door defogger grid
Pick-up w/ extended or crew cab
Rear defogger switch
Rear window defogger grid
Right cargo door contactor
Right rear cargo door defogger grid
Rr-defog mini fuse 30a
S218
S268
S410
Solid state time delay relay
Suburban/utility w/ liftgate
Suburban/utility w/o liftgate
Underhood fuse/relay center

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Electronic Power Steering Wiring Diagram for Chevrolet Suburban C1997 2500:

31

(under left side of i/p) data link connector (dlc)
5 volt ref
Battery feed
Computer data lines system
Electronic variable orifice (evo) solenoid (on steering pump)
Evo sol feed
Evo sol output
G134 (front top of engine)
Gauges fuse 4 10a
Ground
Hot at all times
Hot in run or start
I/p fuse block
Ignition
Pnk
Pos sig out
Position signal
Power steering control module (pscm) (under center of i/p)
S210 (i/p harn, approx 5 cm into data link connector breakout)
S213
S215
S221 (i/p harn, gas: approx 20 cm from i/p cluster breakout; diesel: approx 5 cm into power steering control module breakokut)
Security fuse 21 20a
Sen rtn
Sensor return
Srl data class 13
Steering wheel position sensor (on steering column)
Vehicle control module (vcm) (in engine compt)
Volt ref
Vss out
Vss signal input

ENGINE PERFORMANCE

5.7L

5.7L (VIN R), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Suburban C1997 2500:

69

(attached to right rear of throttle body) idle air control (iac) valve
(lower right front portion of engine block, near crankshaft) crankshaft position sensor
(right side of engine) evaporative emission canister purge valve
(right top of cyl. head) g120
1-2 shift sol. ctrl
2-3 shift sol. ctrl
A/c comp rly ctrl
A/c compressor clutch relay
Bank 1 heated oxygen sensor no. 1 (in exhaust pipe in front of left catalytic converter)
Bank 1 heated oxygen sensor no. 2 (in exhaust pipe in back of left catalytic converter)
Bank 2 heated oxygen sensor no. 1 (in exhaust pipe in front of right catalytic converter)
Cam posit sens sig
Camshaft position sensor (in distributor)
Coil
Crank posit sens sig
Ect sens sig
Egr posit sig
Egr sol ctrl
Evap sol purge ctrl
G120 (right front of engine block)
Ground
Iat sens sig
Idle air ctrl (iac) a hi
Idle air ctrl (iac) b lo
Ign feed
Ignition
Inj no.1 ctrl
Inj no.2 ctrl
Inj no.3 ctrl
Inj no.4 ctrl
Inj no.5 ctrl
Inj no.6 ctrl
Inj no.7 ctrl
Inj no.8 ctrl
Knock sens sig
Knock sensor (left side of engine block, below exhaust manifold, forward of starter)
Left post ctylst hi
Left post-ctylst lo
Left sens hi (precat)
Left sens lo (precat)
Map sens input
Mass air flow sens sig
Nca
Pnk
Pnk c ignition feed
Right post-ctlyst hi
Right post-ctlyst lo
Right sens hi (precat)
Right sens lo (precat)
S103
S148
S149
S162
Sens rtn
Sens sig
Sensor return
Shift sol. ctrl
Tan
Tcc sol ctrl
Tcc sol. ctrl
Temp sens input
Throttle posit sens
Underhood fuse-relay center
Vcm ground
Vehicle control module (vcm) (in engine compartment, near brake pressure modulator valve (bpmv), at left front wheelhouse)
Vehicle speed sensor (left rear side of transmission) (if equipped w/4wd) (left side of transfer case)
Vss rtn
Vss sig
Vss signal

5.7L (VIN R), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Suburban C1997 2500:

37

(w/4l60-e trans.)
(w/4l80-e trans.)
1-2 shift solenoid
2-3 shift solenoid
3-2 shift solenoid
Automatic transmission
Bank 2 heated oxygen sensor no. 2 (in exhaust pipe in back of right catalytic converter)
Ecm-1 mini fuse 20a
Eng-1 k7
Exhaust gas recirculation (egr) valve (front of engine near thermostat housing)
Fluid pressure (tfp) manual valve position switch
Fluid temperature sensor (internal)
Fuel inj. no.1
Fuel inj. no.2
Fuel inj. no.3
Fuel inj. no.4
Fuel inj. no.5
Fuel inj. no.6
Fuel inj. no.7
Fuel inj. no.8
Hot in run & start
Ignition
Mini fuse 20a l8
Nca
Note: fuel injectors are located in central sfi, center of intake manifold
Pnk
Pnk pnk pnk tan
Pressure control solenoid valve
Red
S104
S108
S161
Tan
Tcc solenoid
Torque convertor clutch pulse width modulation solenoid
Under hood fuse-relay center
W/4l60e 4-speed trans. only

5.7L (VIN R), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Suburban C1997 2500:

59

(engine harness, approx 13 cm from breakout to egr valve)
(engine harness, approx 4.5 cm from breakout to egr valve)
(engine harness, approx 7 cm in breakout to egr valve)
(inside left frame rail, near rear crossmember) g415
(not used)
(right front of engine, near thermostat housing) g119
(right top of cylinder head) g120
(taillamp extension harness, approx 10 cm from fuel pump balance module breakout)
Automatic transmission input shaft speed (a/t iss) sensor
Balance fuel pump (on inside left frame rail near front of rear tank)
Engine coolant temperature sensor (top right front of engine, near thermostat housing)
Evaporative emission canister vacuum switch (right side of engine)
Fuel pump & sender (in fuel tank)
Fuel pump balance module (inside left side of frame rail near transmission crossmember)
Fuel pump balance relay (on fuel pump balance module)
Fuel pump/ oil pressure switch (top center rear of engine, behind distributor)
Gauges fuse 4 10a
Hot in off, run or start
Hot in run or start
Hot in run, or start
I/p fuse block
Ign e f7
Ignition
Input fuel gauge
Input oil gauge
Input tachometer
Instrument cluster
Intake air temperature sensor (in air intake duct)
M/t only
Map sensor (top right center of engine, near fuel injectors)
Mass air flow sensor (air intake duct near air filter)
Mini fuse 10a
Output to gage
Pnk
Pnk a
Pnk pnk tan
Primary tank fuel level signal
Relay ctrl
S100
S103
S106
S180
S213
S231
S232
S276
S315
S318
Service engine soon indicator
Speedometer input
Tan
Tan a
Throttle position sensor (on side of throttle body)
Trans fuse 20 10a
Underhood fuse-relay center pnk
Upshift lamp
W/dual fuel tanks
W/o dual fuel tanks
W/o dual fuel tanks

5.7L (VIN R), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Suburban C1997 2500:

88

(engine compt., i/p harness, approx 6.5 cm into ebcm breakout)
(engine harness, approx 13 cm into ebcm breakout)
(engine harness, approx 38.5 cm from underhood fuse/relay center)
(engine harness, approx 6.5 cm from underhood fuse-relay center breakout)
(engine harness, approx 6.5 cm into ebcm breakout)
(i/p harness, approx 20 cm from i/p cluster breakout)
(or
(right top of cylinder head) g120
20a
4wd input
5v ref. voltage
A/c request signal
A/t
Air conditioning system
Aux fan relay
Brake sw input
Brake switch assembly (top of brake pedal)
Brake switch input
Check eng lp ctrl
Clutch pedal position switch (at top of clutch pedal)
Cooling fans system
Cruise control module (left rear side of engine compartment, on bulkhead)
Cruise ctrl sig eng
Cruise pdl sw out
Data link connector (under left side of i/p)
Distributor
Ecm-b f11
Electronic brake control module (ebcm) (near brake master cylinder, at left front wheelhouse)
Est output sig
Evap purge vac sw
Force motor feed
Force motor return
Four whl dr sig
Four whl dr sig lo
Fuel a pump prime connector
Fuel pump relay
Fuel pump rly ctrl
G120 (right top of cylinder head)
Ground
High voltage coil wire
Hot at all times
Hot in run
I/p fuse block
Ign coil out
Ign input
Ign timing sig.
Ignition
Ignition coil (right rear side of engine)
Ignition coil driver (right rear side of engine)
Ignition feed
M/t
M4 brake fuse 18 10a n3
Mini fuse g12
Pnk
Pnk a
Power steering control module (center of i/p)
Pressure switch input
Radio
Red
S101
S103
S111 (engine harness, approx 4 cm from breakout to taillamp harness)
S150
S151
S152
S153
S163
S221
Sensor ground
Sensor return
Serial data sig
Service circuit power
Shift ind lp out
Speed sensor
Speed sensor input
Stoplamp/ clutch switch input
Switch signal
Trans input speed rtn
Trans input speed sig
Transfer case control module (under i/p, on steering column support bracket)
Transfer case switch (left top of transfer case)
Transmissions system (four wheel drive indicator circuit
Underhood fuse- relay center
Vcm ground
Vcm sig
Vehicle control module (vcm) (in engine compartment, near brake pressure modulator valve (bpmv), at left front wheelhouse)
Vss input
Vss sig out

6.5L

6.5L (VIN F), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Engine Performance Wiring Diagrams (1 of 4) for Chevrolet Suburban C1997 2500:

104

(engine harness, approx 43 cm from breakout to ebcm)
(engine harness, approx 8 cm from fuel heater breakout)
(engine jumper harness)
(engine sensor harness)
(front engine cover) crankshaft position (ckp) sensor)
(front of engine)
(i/p harness, approx 16 cm into i/p cluster breakout)
(left lower front of engine) engine coolant temperature (ect) sensor
(right top of cylinder head) g119
12v
3/2 shift sol.
4wd signal
5 volt ref
5 vref
5v ref volt
A/c request sig
A/c system
A/t fluid pressure (tfp) manual valve position switch
A10
A11 3 mode cruise a12
Anti-lock brakes system
App 1 sig
App 2 sig
App 3 sig
Automatic transmission input shaft speed (a/t iss) sensor (left side of transmission near front)
B10
B11
B12
Baro sensor input
Boost pressure sensor
Brake sw in
Brake switch input
C10
C11
C12
C13
C14
C15
C16
Cam posit sens sig rtn
Camshaft posit sens
Closure gnd
Cruise control
Cruise ctrl sw engage
Cruise eng sw retard
D10
D11
D12
D13
D14
D15
D16
Ect temp sens in
Engine crank sens input
Exhaust gas recirculation (egr) control/ barometric (baro) pressure sensor (right of steering column)
Force mtr hi
Force mtr low
Fuel pump input
Fuel pump rly ctrl
Fuel sol closure (5v sig)
Fuel temp sens (5v sig)
Glow plug "wait" lp out
Glow plug relay
Ground
Heavy duty electronic 4-spd automatic overdrive transmission
Intake air temperature (iat) sensor
Intake man air temp sens
Map sens input
Nca
On/off
Pnk
Powertrain control module (pcm) (under right end of i/p, above blower motor)
Pressure control solenoid valve
Radio
Range mode sel a
Range mode sel b
Range mode sel c
Red
Resume
S140
S170
S199
S211
S215
S230
Sensor gnd
Set
Shift sol. a
Shift sol. b
Switch
Tan
Timing stepper mtr (high)
Timing stepper mtr (low)
Transmission speed input
Transmission temp input
Transmission temperature sensor
Transmissions system
Vehicle speed input
Vehicle speed sensor (on transmission, left rear side)
Vehicle speed sensor buffer (below left side of i/p)
Vss hi
Vss output
Vss rtn
Vss sig

6.5L (VIN F), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Engine Performance Wiring Diagrams (2 of 4) for Chevrolet Suburban C1997 2500:

37

(engine harness, approx 4 cm from i/p harness breakout)
(engine jumper harness, toward fuel temperature sensor)
5 volt ref
Accelerator pedal position (app) module (below i/p, attached to accelerator bracket)
Brake switch assembly (at rear of brake pedal support bracket)
Clutch pedal position (cpp) switch (m/t only) (top of clutch pedal)
Cmp sig
D2 trans fuse 20 20a e1
D8 stop/haz fuse 1 20a c7
Ecm h7
Electronic brake control module (left frame rail, near center of vehicle)
Engine shutoff solenoid
Fuel f5
Fuel solenoid
Fuel solenoid driver
Fuel temperature sensor
Fuse 20a
High res sig
Hot at all times
Hot in run
Hot in run or start
I/p fuse block
M4 brake fuse 18 10a n3
Pnk
Pnk pnk
Power distribution system
Red
S190
S198
S220 (i/p harness, approx 6 cm from steering column breakout)
S222 (m/t) s152 (a/t)
S299
Sens grd
Sol fuse 20a
Tan d
Timing stepper motor (top front of engine)
Underhood fuse-relay center

6.5L (VIN F), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Engine Performance Wiring Diagrams (3 of 4) for Chevrolet Suburban C1997 2500:

37

(engine harness, approx 37 cm from breakout to fuel relay center) s100
(left frame rail, below driver's door)
(right top of cylinder head)
(right top of cylinder head) g119
(taillamp extension harness, approx 10 cm from fuel pump balance module breakout)
Ecm-b fuse 20a
F11
Fuel lift pump
Fuel pump prime connector
Fuel pump relay (in underhood fuse-relay center)
Fuel pump/ oil pressure switch and sender (left rear of engine)
G119
G12
Gauges fuse 4 10a
Hot at all times
Hot in run or start
I/p fuse block
Instrument cluster
Instrument cluster system
Instrument cluster system (fuel pump balance relay)
Pnk
Red
S101
S103
S147
S213
S318
Service engine soon indicator
Service throttle soon indicator
Tan
Underhood fuse-relay center
Vehicle speed input
W/dual tanks
W/o dual tanks
Wait to start "glow plugs" indicator
Water in fuel indicator
Water in-fuel sensor

6.5L (VIN F), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Engine Performance Wiring Diagrams (4 of 4) for Chevrolet Suburban C1997 2500:

86

"serv eng soon" ind
"serv throttle soon" ind
(engine harness, approx 13 cm into ebcm breakout)
(engine harness, approx 13 cm into generator breakout)
(engine harness, approx 34 cm from bulkhead to inside of pass compt)
(engine harness, approx 64 cm from glow plug controller)
(engine jumper harness, from fuel solenoid driver)
(left side of i/p)
(right top of cylinder head) g119
12v battery (fused)
12v battery fused
3/2 ctrl out
A/c enable
A/c system
C10
C11
C12
C13
C14
C15
C16
D10
D11
D12
D13
D14
D15
D16
Data link connector (dlc)
Egr sol output
Egr valve sol putput
Electronic brake brake control module (ebcm) (at left front wheelhouse)
Eng-i k7
Engine shutoff sol out
Exhaust gas recirculation (egr) vent solenoid
Exhaust gas recirculation egr solenoid (left rear top of engine)
Fuel heater (top rear of engine)
Fuel sol module (5 vref)
Fuel sol module feed
Fuse 10a
Fuse 20a
Fusible link
Fusible links
G119 (right top of cylinder head)
Glow plug 1
Glow plug 2
Glow plug 3
Glow plug 4
Glow plug 5
Glow plug 6
Glow plug 7
Glow plug 8
Glow plug output
Glow plug relay (left rear of engine near bulkhead)
Glow plugs g4
Grd
Ground
Hot at all times
Hot in run or start
Ign
Ignition
Maf
Mass air flow (maf) sensor
Pcm gnd
Pnk
Powertrain control module (pcm) (under right end of i/p, above blower motor)
Red
Relay ctrl
S103
S108
S137
S138
S147
S150
S191
S269
Serial data sig
Shift sol a input
Shift sol b input
Signal
Tan
Tps no.2 ref voltage
Underhood fuse-relay center
Wait to start ind
Wastegate sol
Wastegate solenoid

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Back-up Lamps Wiring Diagram for Chevrolet Suburban C1997 2500:

17

(left side of trans) backup lamp switch
A/t
Backup lamps signal (trailer tow package) (wire cut and taped to harness)
C218
Convenience center (under left side of dash)
G415 (left frame rail, behind bumper)
Hot in run, bulb test or start
I/p fuse block
Left backup lamp
M/t
Mirrors system
Park/neutral position switch (left top of trans)
Pnk
Right backup lamp
S411
S414
Turn b/u fuse 16 20a

Exterior Lamps Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Exterior Lamps Wiring Diagram for Chevrolet Suburban C1997 2500:

94

(forward lamps harn, 7cm from left headlamp breakout) s122
(forward lamps harness, 5cm from right headlamp breakout) s122
(frame ground: on rear of vehicle)
(front to rear body harness, near chmsl harness breakout)
(i/p harness, 12 cm from steering column breakout) s210
(i/p harness, 4cm into i/p cluster breakout) s267
(i/p harness, 8cm into i/p cluster breakout) s214
(license lamp harness, 15cm from left license lamp toward taillamp breakout) s415
(rear lamps harn, 28cm from trailer harness breakout) (w/ trailer pkg) s413
(rear lamps harness, near taillamps extension harness break- out) s412
Auxiliary lead (taped to harness)
Backup lights circuit
C219
C220
Cab clearance lamps
Cargo lamp
Cargo lamp switch
Center high mount stop lamp
Ch- msl lp
Column harness breakout)
Convenience center (under left side of dash)
Cr lp
Cruise control system
Ctsy fuse 20a
Fuse block
G108 (left radiator support, near left headlamp)
G120 (gas: right front of engine block; diesel: right top of cylinder head)
G1o1 (right inner fender, below underhood reel lamp)
G202 (behind left side of dash)
G202 (behind left side of i/p)
G305 (right "b" pillar)
G415 (left frame rail, behind bumper)
H9 turn pwr h8 haz pwr h7 flshr out g8 gnd
Hazard
Headlamp & panel dimmer switch
Headlights system
Hot at all times
Hot in run, bulb test or start
I/p fuse block
Instru- ment cluster
Interior lights system
Left
Left front marker lamp
Left front park/ turn lamps
Left tail/ stop/ turn lamp
Left turn indic
License lamp
License lamps
Maxi fuse 30a
Nca
Normal
Off
Park
Park lps fuse 9 20a
Pickup
Platform hitch ground
Pnk
Rear clearance lamps circuit
Red
Rheo- stat
Right
Right front marker lamp
Right front park/ turn lamps
Right tail/ stop/ turn lamp
Right turn indic
S107
S119 (forward lamps harn, 20cm from washer pump breakout)
S123
S128
S204
S215
S242
S251
S299
S316
S411
S416
S419
S421 (rear lamp harness, 7cm from license lamp breakout)
S422 (rear lamp harn, 7cm from trailer harness breakout)
S424
Stop- lamp relay (except subur- ban/ utility)
Stop/ haz fuse 1 15a
Suburban/ utility
Tcc/ stop lamp switch (top of brake pedal)
Trailer towing adapter (wires are cut and taped to harness)
Turn- b/u fuse 16 15a
Turn/ hazard switch
Turn/hazard flasher (convenience center: under left side of dash)
Under- hood fuse relay center (left rear of engine compt.)
Under- hood fuse- relay center (left rear of engine compt.)
W/ dual rear wheels
W/ step bumper
W/o step bumper

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Suburban C1997 2500

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Suburban C1997 2500:

72

(i/p harness, approx 24 cm from instrument cluster breakout)
(left front of intake manifold)
(right front of engine)
A16
Ashtray lamp
Audio alarm module
Auxiliary cooling fan motor
Auxiliary fan control switch
Btsi ground
C10
Cargo lamp switch (pickup)
Cigar lighter
Convenience center
D10
D12
D13
Data link connector
Daytime running lamps module
Fog lamp switch
From convenience center (diagram 3 of 4)
Front windshield wiper/ washer pump motor
G101 (right front wheelhouse)
G101 (right inner fender, below underhood reel lamp)
G105 (right rear of engine compt)
G108 (left radiator support, near left headlamp)
G110 (diesel)
G117 (right rear of engine)
G119 (gasoline)
G202 (behind left side of i/p)
Headlamp and panel dimmer switch
Heater and a/c control switch
Hvac control module
I/p compartment lamp
Ignition switch ground
Inflatable restraint i/p module enable switch
Left battery
Left fog lamp
Left front door jamb switch
Left front park/ turn lamp
Left high beam headlamp
Left high/ low beam headlamp
Left horn
Left low beam headlamp
Low coolant level indicator module
Power outlet
Radio
Rear liftgate release switch (suburban/ utility)
Rear window washer pump motor
Rear window wiper/ washer switch
Rear window wiper/ washer switch (suburban/ utility)
Right fog lamp
Right front door jamb switch
Right front park/ turn lamp
Right high beam headlamp
Right high/ low beam headlamp
Right horn
Right low beam headlamp
S123 (forward lamps harness, approx 20 cm from left park/lamp breakout)
S128 (forward lamps harness, approx 5 cm from right headlamp breakout)
S158 (in washer pump jumper harness)
S204 (i/p harness, approx 8 cm from dlc harness breakout)
S218 (i/p harness, aprrox 16 cm from radio harness breakout)
S298
Spare
Steering column ground
Transfer case control module
Transfer case select switch
Turn/ hazard flasher
Uncoated
W/ dual horns
W/ v22 (quad headlamps)
Windshield wiper motor module

Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Suburban C1997 2500

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Suburban C1997 2500:

66

(4wd harness, approx 10 cm from transfer case relay breakout)
(engine harness, 8-16 cm from a/c compressor clutch connector)
(engine harness, approx 16 cm into vehicle speed sensor breakout)
(i/p harness, approx 8 cm from i/p cluster breakout)
(not used)
(oxygen sensor jumper harness, approx 22 cm into harness)
(right front of engine block)
4.3l
A/c compressor clutch
A/c compressor clutch relay
A/c compressor cycling switch
A/c high pressure cutout switch
Air reaction injection (secondary) pump (7.4l only)
Balance fuel gage sender
Blower motor
Brake pressure warning switch
Cruise control module
Data link connector
Electronic brake control module
Evaporative emissions purge vacuum solenoid switch
Except 4.3l
Front axle actuator
Front mode door motor
Front temperature door motor
Fuel pump and sender
Fuel pump balance module
Fuel pump relay
G120
G131 (near thermostat housing)
G134 (front top of engine)
Gasoline
Heated oxygen sensor bank 1 sensor 1
Heated oxygen sensor bank 1 sensor 2
Heated oxygen sensor bank 2 sensor 1
Heated oxygen sensor bank 2 sensor 2
High a/c pressure cutout switch
High blower motor relay
Ignition coil module
Instrument cluster
Mass airflow sensor
Park/ neutral position switch
Power steering control module
Recirculation door motor
S103 (vin j-engine harness, approx 12 cm from fuel injector breakout, except vin j-engine harness, approx 11 cm from breakout to egr valve)
S107 (vin j-engine harness, approx 18 cm from fuse-relay center breakout, except vin j-engine harness, 25-35 cm from breakout to egr valve)
S147 (vin j-engine harness, approx 5 cm from fuel injector breakout, except vin j-engine harness, approx 6 cm from egr breakout)
S149
S156
S162 (except vin j-engine harness, approx 17 cm from starter solenoid breakout, vin j-engine harness, approx 41 cm from left oxygen sensor breakout)
S180 (engine harness, approx 21-36 cm from under hood lamp breakout)
S185
S186
S215
S244 (hvac harness, approx 15 cm from recirculation door breakout)
S302
S317 (taillamp extension harness, approx 10 cm from fuel pump and sender breakout)
Starter relay
Stoplamp relay
Transfer case relay
Under- hood lamp
Under- hood reel lamp
Underhood fuse- relay center
Vehicle control module
W/ dual tanks
W/o dual tanks (except 4.3l)
Water valve

Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Suburban C1997 2500

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Suburban C1997 2500:

60

(crossbody harness, approx 6 cm into seat belt switch breakout)
(i/p harness, approx 8 cm from i/p cluster breakout)
(inside left front door harness, near tweeter)
(power lumbar seat jumper, approx 20 cm from right power seat breakout)
4.3l only
Balance fuel gage sender
Bench seat
C210
C220
Center high mount stop- lamp
Convenience center
Convenience center (under left side of i/p)
Data link connector
Diesel
Door lock relay
Electrochromic rearview mirror w/ compass
Four-wheel drive indicator lamp
Fuel gage sender
Fuel pump and sender
Fuel pump balance module
Fuel pump relay
G120 (right top of cylinder head)
G416 (inside left framerail, near rear crossmember)
Instrument cluster
Interior lamp control module
Left clearance lamp
Left front power window lock switch
Left illuminated vanity mirror
Left power lumbar support motor
Left rear power window switch
Mass airflow sensor
Others
Power amplifier
Power amplifier relay
Power lumbar motor
Power outside rearview mirror switch
Power steering control module
Powertrain control module
Rear window lockout switch
Remote control door lock receiver
Right clearance lamp
Right front power window switch
Right illuminated vanity mirror
Right power left power seat
Right power lumbar support motor
Right rear power window switch
Roof marker lamps
S103 (engine harness, approx 11 cm from breakout to right side glow plugs)
S215
S251 (crossbody harness, approx 12 cm right of left door harness breakout)
S259
S303
S316 (vanity mirror jumper harness, approx 10 cm toward left illuminated vanity mirror)
S317 (taillamp extension harness, approx 10 cm from fuel gage sender breakout)
S500
Seat belt switch
To g202 (diagram 1 of 4)
Transfer case mode selector illumination lamp
Under- hood fuse- relay center
Vehicle speed sensor buffer

Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Suburban C1997 2500

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Suburban C1997 2500:

58

(license lamps harness, approx 4 cm from tail- lamp harness breakout)
(rear heat and a/c harness, 7 cm from blower motor resistor breakout)
(rear lamps harness, 17-33 cm from taillamps extension breakout)
Auxiliary heater- a/c logic module
Balance fuel pump
Center high mount stoplamp
Chassis cab & heavy duty
Door contact button
Door lock control module
Endgate marker lamps
Except chassis cab & heavy duty
Front auxiliary heater-a/c control module
Front dome lamp
Fuel lift pump
G202 (left side of i/p)
G305 (right 'b' pillar)
G415 (frame ground, rear of vehicle)
G415 (left frame rail, behind bumper)
G416 (left frame rail, near rear crossmember)
Inflatable restraint front end sensor
Inflatable restraint sensing and diagnostic module
Left cargo door defogger grid
Left front clearance lamp
Left license lamp
Left rear clearance lamp
Left rear fender
Left rear tail, stop, license, turn & backup lamps
Left rear tail, stop, turn & backup lamps
Left tail, stop, turn & backup lamps
Overhead console lamps
Pickup w/ dual rear wheels
Rear auxiliary heater-a/c control module
Rear auxiliary mode door motor
Rear auxiliary temp door motor
Rear blower motor
Rear dome lamp
Rear liftgate window defogger grid
Rear wiper motor module
Right cargo door defogger grid
Right front clearance lamp
Right license lamp
Right rear clearance lamp
Right rear door jamb switch
Right rear fender
Right rear tail, stop, license, turn & backup lamps
Right rear tail, stop, turn & backup lamps
Right tail, stop, turn & backup lamps
S307 (rear hvac control harness, approx 10 cm from hvac logic module breakout)
S319 (taillamp extension harness, approx 10 cm from fuel pump and sender breakout (fuel gage sender breakout-diesel))
S403
S410 (utility-front to rear lamps harness, 12-22 cm from right rear door speaker breakout, suburban-front to rear body harness, 12-22 cm from right rear door speaker breakout)
S411
S411 (rear lamps harness, 17-33 cm from taillamps extension breakout)
S416
Suburban & utility
Trailer ground (taped back)
Utility only
W/ dual tanks

Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Suburban C1997 2500

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Suburban C1997 2500:

32

(engine harness, 28 cm from a/c compressor clutch connector)
(right top of cylinder head)
A/c compressor clutch
A/c compressor clutch relay
A/c low pressure switch
Blower motor
Brake pressure warning switch
Diesel
Electronic brake control module
Front axle actuator
Front mode door motor
Front temperature door motor
Fuel heater
G117
Glow plug relay
High blower motor relay
Low coolant level sensor
Park/ neutral position switch
Recirculation door motor
S107 (engine harness, approx 30 cm from breakout to ebcm)
S147 (engine harness, approx 4 cm from breakout to right side glow plugs)
S185
S186
S244 (hvac harness, approx 15 cm from recirculation door breakout)
S302 (4wd harness, approx 10 cm from transfer case relay breakout)
Starter relay
Stoplamp relay
Transfer case relay
Under- hood lamp
Under- hood reel lamp
Underhood fuse- relay center
Water-in- fuel sensor

HEADLIGHTS

Headlight Wiring Diagram, with Quad Headlamps for Chevrolet Suburban C1997 2500

List of elements for Headlight Wiring Diagram, with Quad Headlamps for Chevrolet Suburban C1997 2500:

72

(forward lamps harn, approx 12cm from left headlamp breakout toward windshield washer pump)
(i/p harn, near strng col harn breakout; except 1998 gas) (i/p harn, near auxiliary power outlet; 1998 gas)
Acc
Brake ind ctrl
Brake warn in
Bulb test
Convenience center (under left side of dash)
Daytime running lamps module (behind left side of dash)
Daytime running lamps relay
Diode 203 (i/p harness, right side of steering column)
Drl indicator
Drl relay ctrl
Drl-fog fuse 15 20a
Exterior lights system
Fog lamp relay
Fog lamp switch
G101 (right inner fender)
G101 (right inner fender, below underhood reel lamp)
G108 (left radiator support)
G134 (front top of engine)
G202 (behind left side of dash)
Gages fuse 4 10a
Ground
Head
Head- lamp dimmer switch
Headlamp and panel dimmer switch
High beam indicator
Hot at all times
Hot in run, bulb test or start
I/p fuse block (left side of dash)
Ignition
Ignition switch
Illum lamp
Ind bulb chk
Instrument cluster
Instrument cluster system (brake warning indicator)
Interior lights system
Lamp feed
Left fog lamp
Left high beam head- lamp
Left low beam head- lamp
Lighting fuse 8 50a
Lock
Nca
Off
On indicator
Park
Park brake sig
Park brake warning switch
Pk lps fuse 9 20a
Pnk
Red
Red c
Right fog lamp
Right high beam head- lamp
Right low beam head- lamp
Run
S120 (forward lamps harn, near windshield washer pump breakout toward left hdlp)
S121
S123
S125 (i/p harn, approx 13cm from left rear engine compt grommet towards forward lamps harn; except 1998 diesel) (i/p harn, approx 20cm from cluster breakout; 1998 diesel)
S128
S204
S205
S210
S213
S215
S298
Start
Tan
Underhood fuse/relay center (left rear of engine compt)
W/ fog lamps

Headlight Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Suburban C1997 2500

List of elements for Headlight Wiring Diagram, with Sealed Beam Headlamps for Chevrolet Suburban C1997 2500:

73

(forward lamps harn, approx 12cm from left headlamp breakout toward windshield washer pump)
(high)
(i/p harn, near strng col harn breakout; except 1998 gas) (i/p harn, near auxiliary power outlet; 1998 gas)
(low)
Acc
Brake ind ctrl
Brake warn in
Bulb test
Convenience center (under left side of dash)
Daytime running lamps module (behind left side of dash)
Daytime running lamps relay
Diode 203 (i/p harness, right side of steering column)
Drl indicator
Drl relay ctrl
Drl-fog fuse 15 20a
Exterior lights system
Fog lamp relay
Fog lamp switch
G101 (right inner fender)
G101 (right inner fender, below underhood reel lamp)
G108 (left radiator support)
G134 (front top of engine)
G202 (behind left side of dash)
Gages fuse 4 10a
Ground
Head
Head- lamp dimmer switch
Headlamp and panel dimmer switch
High beam indicator
Hot at all times
Hot in run, bulb test or start
I/p fuse block (left side of dash)
Ignition
Ignition switch
Illum lamp
Ind bulb chk
Instrument cluster
Instrument cluster system (brake warning indicator)
Interior lights system
Lamp feed
Left fog lamp
Left head- lamp
Lighting fuse 8 50a
Lock
Nca
Off
On indicator
Park
Park brake sig
Park brake warning switch
Pk lps fuse 9 20a
Pnk
Red
Red c
Right fog lamp
Right head- lamp
Run
S120 (forward lamps harn, near windshield washer pump breakout toward left headlamp)
S121
S123
S125 (i/p harn, approx 13cm from left rear engine compt grommet towards forward lamps harn; except 1998 diesel) (i/p harn, approx 20cm from cluster breakout; 1998 diesel)
S128
S204
S205
S210
S213
S215
S298
Start
Tan
Tan c
Underhood fuse/relay center (left rear of engine compt)
W/ fog lamps

HORN

Horn Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Horn Wiring Diagram for Chevrolet Suburban C1997 2500:

13

(forward lamps harn, 26.5 cm from left headlamp breakout) s124
G101 (right inner fender, below underhood reel lamp)
Horn mini fuse 20a
Horn relay
Horn slip ring
Horn switch
Hot at all times
Left horn (front of vehicle)
Nca
Right horn (front of vehicle)
S128
Steering wheel
Underhood fuse-relay center

INSTRUMENT CLUSTER

5.7L

5.7L (VIN R), Instrument Cluster Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Instrument Cluster Wiring Diagram for Chevrolet Suburban C1997 2500:

92

(6 bulbs)
(engine harn, 20 cm into ebcm breakout)
A/t
Accy
Air bag
Anti- lock brakes
Anti-lock brakes system
Balance fuel gage sender (in rear fuel tank)
Bat
Belt
Brake
Brake ind in
Brake pressure modulator valve (left front wheelhouse)
Brake pressure warning switch (on rear of brake pressure modulator valve body)
Bulb test
C100
Check gauges
Check gauges lamp driver
Daytime running lamps
Daytime running lamps module (left side of i/p)
Diode 1
Engine controls system (fuel pump balance relay)
Engine coolant temperature sender (left cylinder head)
Exterior lights system
Fuel gauge
Fuel pump & sender (in front fuel tank)
Fuel pump & sender (in fuel tank)
Fuel pump balance module (near transmission crossmember)
Fuel pump/ oil pressure switch & sender (left rear side of engine)
G119 (near thermostat housing)
G119 (right front of engine block)
Gauges fuse 4 10a
Headlights system
Hi beam
Hot in run or start
Hot in run, bulb test or start
I/p fuse block (behind left side of i/p)
Ign
Ign e mini fuse 10a
Ignition coil (right rear side of engine)
Ignition switch
Illum
Illumination
Instrument cluster
Interior lights system
Led dimming
Left turn
Lock
M/t
Mil ind
Off
Oil gauge
Parity prndl
Park brake warning switch (left side of i/p)
Pnk
Prndl
Prndl a
Prndl b
Prndl c
Right turn
Run
S103
S146
S147
S157
S162
S213
S215
S317
Safety
Service engine soon
Speedo
Speedometer
Start
Starting/charging system
Tach
Tan
Temp gauge
Trans fuse 20 10a
Transmission range selector (left side of transmission)
Twisted pair
Underhood fuse- relay center
Underhood fuse-relay center (left rear of engine compt)
Upshift (m/t only)
Upshift ind
Vehicle control module (left front wheelhouse)
Vehicle speed sensor (left rear of transmission)
Voltmeter
Vss
W/ dual fuel tanks
W/o dual fuel tanks
Warning systems

6.5L

6.5L (VIN F), Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Instrument Cluster Wiring Diagram (1 of 2) for Chevrolet Suburban C1997 2500:

59

(6 bulbs)
Air bag
Anti- lock brakes
Anti-lock brakes system
Bat
Brake
Check gauges
Check gauges lamp driver
Daytime running lamps
Engine controls system
Engine coolant temperature sender (left side of engine block)
Exterior lights system
Fuel gauge
G117 (top rear of right cylinder head)
G202 (left side of i/p)
Generator
Gnd
Headlights system
Hi beam
Ign
Illum
Illumination
Instrument cluster
Interior lights system
Led dimming
Left turn
Low coolant
Low coolant level indicator module (under center of i/p)
Low coolant level sensor (in coolant reservoir)
Oil press
Oil pressure switch & sender (left rear side of engine)
Parity prndl
Pnk
Prndl
Prndl a
Prndl b
Prndl c
Right turn
S107
S147
S215
S298
Safety belt
Service engine soon
Service throttle soon
Solid state
Speed- ometer
Starting/charging system
System engine controls system
Tach
Tan
Temp gauge
Transmission range selector (left side of transmission)
Up- shift
Volt- meter
Wait to start
Warning system
Water in fuel
Water-in fuel sensor

6.5L (VIN F), Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Instrument Cluster Wiring Diagram (2 of 2) for Chevrolet Suburban C1997 2500:

52

(engine harn, 20 cm into ebcm breakout)
(i/p harn, 18 cm into cluster breakout)
(i/p harn, 5 cm into power steering control module breakout)
A/t
Accy
Anti-lock brakes system
Balance fuel gage sender (in rear fuel tank)
Brake ind in
Brake pressure modulator valve (left front wheelhouse)
Brake pressure warning switch (on rear of brake pressure modulator valve body)
Bulb test
C100
Daytime running lamps module (left side of i/p)
Diode 1
Eng 1 mini fuse 20a
Engine controls system
Engine controls system (fuel pump balance relay)
Fuel gage sender
Fuel pump & sender
Fuel pump balance module (inside left side of frame rail near trans. crossmember)
G117 (top rear of right cylinder head)
Gauges fuse 4 10a
Hot in run, bulb test or start
I/p fuse block (behind left side of i/p)
Ign e mini fuse 10a
Ignition switch
Lock
M/t
Off
Park brake warning switch (left side of i/p)
Pnk
Radio
Run
S103
S107
S108
S157
S211
S213
S215
S221
S315
S317
Start
Trans fuse 20 10a
Transmission system
Twisted pair
Underhood fuse-relay center (left rear of engine compt)
Vehicle speed sensor (left rear of transmission)
Vehicle speed sensor buffer (behind right side of i/p)
W/ dual fuel tanks
W/o dual fuel tanks

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram, with Auxiliary Lighting for Chevrolet Suburban C1997 2500

List of elements for Courtesy Lamps Wiring Diagram, with Auxiliary Lighting for Chevrolet Suburban C1997 2500:

72

(crossbody harn, approx 41 cm from left door harn breakout)
Bat
C219
C220
Cargo door jamb switch
Convenience center (left side of i/p)
Courtesy lamps
Ctrl
Ctsy fuse 3 20a
Dome defeat
Dome lamp defeat
Door jamb
Front dome/ reading lamps
G120 (diesel) (right top of cylinder head)
G120 (gasoline) (right front of engine block
G202 (left side of i/p)
G305 (right "b" pillar)
Gages fuse 4 10a
Gnd
Headlamp & panel dimmer switch
Horn mini fuse 20a
Hot at all times
Hot in run, bulb test or start
I/p compart- ment box lamp
I/p fuse block
Ign sw
Interior lamp control module (under center of i/p)
Lamp out
Left
Left front door courtesy lamp
Left front door jamb switch
Left i/p courtesy lamp
Left illuminated vanity mirror
Left rear door courtesy lamp
Mirrors system
Nca
Overhead console lamps circuit
Pnk
Pnk a
Pnk j
Rear dome/ reading lamps
Rear door jamb switch
Remote control door lock receiver (under center of i/p)
Right
Right front door courtesy lamp
Right front door jamb switch
Right i/p courtesy lamp
Right illuminated vanity mirror
Right rear door courtesy lamp
S113
S162 (gas) s147 (diesel)
S204
S209 (i/p harn, approx 12 cm in crossbody harn breakout)
S213
S218
S242
S246
S248
S251
S262 (crossbody harn, approx 18 cm from seat belt switch breakout)
S312
S316
S410
S417 (front to rear body harn, approx 13 cm in crossbody harn, breakout)
S426
Underhood fuse-relay center
Underhood lamp
Underhood reel lamp
W/ overhead console
W/ rke
W/o overhead console
W/o rke

Courtesy Lamps Wiring Diagram, without Auxiliary Lighting for Chevrolet Suburban C1997 2500

List of elements for Courtesy Lamps Wiring Diagram, without Auxiliary Lighting for Chevrolet Suburban C1997 2500:

66

(crossbody harn, approx 41 cm from left door harn breakout)
(i/p harn, arrrox 8 cm in crossbody harn breakout) s208
4-door trucks only
Bat
C219
C220
Cargo door jamb switch (suburban, tahoe & yukon)
Convenience center (left side of i/p)
Courtesy lamps
Ctrl
Ctsy fuse 3 20a
Dome defeat
Dome lamp defeat
Door jamb
Front dome lamp
Front dome lamp breakout)
G120 (diesel) (right top of cylinder head)
G120 (gasoline) (right front of engine block
G202 (left side of i/p)
G305 (right "b" pillar)
Gages fuse 4 10a
Gnd
Headlamp and panel dimmer switch
Horn mini fuse 20a
Hot at all times
Hot in run, bulb test or start
I/p compartment box lamp
I/p fuse block
Ign sw
Interior lamp control module (under center of i/p)
Lamp out
Left
Left front door jamb switch
Left i/p courtesy lamp
Left illuminated vanity mirror
Mirrors system
Pnk
Pnk a
Pnk j
Rear dome lamp
Rear door jamb switch
Remote control door lock receiver (under center of i/p)
Right
Right front door jamb switch
Right i/p courtesy lamp
Right illuminated vanity mirror
S113
S162 (gas) s147 (diesel)
S204
S209 (i/p harn, approx 12 cm in crossbody harn breakout)
S213
S218
S242
S246
S248
S251
S262 (crossbody harn, approx 18 cm from seat belt switch breakout)
S312
S316
S410
S426
Underhood fuse-relay center
Underhood lamp
Underhood reel lamp
W/ rke
W/o rke

Instrument Illumination Wiring Diagram (1 of 2) for Chevrolet Suburban C1997 2500

List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Chevrolet Suburban C1997 2500:

44

(6) bulbs
(at right "b" pillar)
(cross- body harn, near i/p harn breakout) s253
(left side of i/p)
Audio alarm module (left side of i/p)
C210
Cargo lamp switch
Convenience center (left side of i/p)
Display dim sig
Fog lamp switch
Front auxiliary a/c-heater control module
G120 (diesel) (right top of cylinder head)
G131 (gas) (near thermostat housing)
G202
G305
Headlamp and panel dimmer switch
Heater and a/c control
Hot at all times
I/p fuse block
I/p fuse block (left side of i/p)
Illum fuse 14 10a
Inflatable restaint i/p module enable switch
Instrument cluster
Off
Parade mode sw
Park
Park lps fuse 9 20a
Pickup/ extended cab only
Radio
Rear auxiliary a/c-heater control module
Rear auxiliary heater switch
Rear liftgate release switch
Rear window wiper/ washer switch
Rheo- stat
S204
S215
S216 (i/p harn, near i/p cluster breakout)
S217 (i/p harn, near i/p cluster breakout)
S218
S259
S307
Suburban & utility only
Transfer case mode selector illuminator lamp
Transfer case select switch

Instrument Illumination Wiring Diagram (2 of 2) for Chevrolet Suburban C1997 2500

List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Chevrolet Suburban C1997 2500:

29

(crossbody harn, approx 6 cm in left door harn breakout)
(left side of i/p)
Ash tray lamp
C210
Convenience center (left side of i/p)
Exterior lights system
G202
Headlamp and panel dimmer switch
Hot at all times
I/p fuse block
Left front power window switch
Left rear power window switch
Off
Parade mode sw
Park
Park lps fuse 9 20a
Rear window lockout switch
Remote outside rearview mirror switch
Rheo- stat
Right front power window switch
Right rear power window switch
S204
S210 (i/p harn, approx 12 cm from steering column harn breakout)
S218
S247
S251
S259
S500
S502 (left front door harn, near tweeter)

Overhead Console Lamps Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Overhead Console Lamps Wiring Diagram for Chevrolet Suburban C1997 2500:

25

(crossbody harn, approx 41 cm from left door harn breakout)
(front to rear body harn, near front dome lamp breakout) s417
(i/p harn, appprox 12 cm from steering column harness breakout)
Courtesy lamps
Courtesy lamps circuit (w/ auxiliary lighting)
Ctsy fuse 3 20a
Front dome/ reading lamps
G202 (left side of i/p)
G305 (right "b" pillar)
Headlamp and panel dimmer switch
Hot at all times
I/p fuse block
Int lamp out
Interior lamp control module (under center of i/p)
Overhead console lamps
Rear dome/ reading lamps
Remote control door lock receiver (under center of i/p)
S204
S209
S246
S320
S321
S401
S410
S426

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Chevrolet Suburban C1997 2500

List of elements for Power Distribution Wiring Diagram (1 of 4) for Chevrolet Suburban C1997 2500:

83

(diesel)
(diesel-engine harness, approx 5 cm from break- out to glow plug relay, gasoline-engine harness, approx 11 cm into under- hood fuse-relay center breakout)
(engine harness, 4-13 cm from fuse-relay center breakout)
(engine harness, approx 18 cm into underhood fuse-relay center break- out) s113
(except diesel)
(gasoline)
(i/p harness, approx 5 cm from dlc harness breakout) s205
(rear heat and a/c harness, 11-23 cm from blower motor relays breakout) s401
(stud a)
(stud b)
(vanity mirror jumper harness, approx 4 cm from inside rearview mirror)
A/c comp mini fuse 20a
A/c maxi fuse 3 50a
A/c relay
Aux fan relay mini fuse 20a
Auxiliary cooling fan relay
Blower relay
Brake lamp relay
C13
C205
C219
Cargo lamp switch (pick-up only)
Convenience center
Ctsy fuse 3 20a
D13
Daytime running lamps relay
Diesel
Diode
Drl/fog fuse 15 20a
Ecm-b mini fuse 20a
Electronic brake control module
Fog lamp relay
Front dome reading lamps
Fuel pump oil pressure switch and sender
Fuel pump relay
Fusible link (10 ga-rust)
Gas
Generator
Headlamp and panel dimmer switch
Heater and a/c control switch
High blower relay
Horn mini fuse 20a
Horn relay
I/p compartment lamp
I/p fuse block
Interior lamp control module
Left battery (diesel)
Left courtesy lamp
Left front door courtesy lamp
Left illuminated vanity mirror
Left rear door courtesy lamp
Low blower relay
Maxi fuse 2 30a
Maxi fuse 30a
Maxi fuse 4 60a
Maxi fuse 8 50a
Medium blower relay
Pk lps fuse 9 20a
Powertrain control module (diesel)
Rear dome reading lamps
Red
Remote battery stud
Remote outside rearview mirror switch
Right battery
Right courtesy lamp
Right front door courtesy lamp
Right illuminated vanity mirror
Right rear door courtesy lamp
Rr defog mini fuse 20a
S101
S110 red
S242 (i/p harness, approx 12 cm from radio harness breakout)
S248 (crossbody harness, approx 35 cm from rear speaker breakout)
S312
Spare power source
Starter motor solenoid
To fusible link (diagram 4 of 4)
To underhood fuse-relay center (diagram 2 of 4)
Underhood fuse- relay center
Underhood fuse-relay center
Underhood lamp
Underhood reel lamp
Vehicle control module (gasoline)

Power Distribution Wiring Diagram (2 of 4) for Chevrolet Suburban C1997 2500

List of elements for Power Distribution Wiring Diagram (2 of 4) for Chevrolet Suburban C1997 2500:

93

(crossbody harness, approx 11 cm from convenience center connector breakout) s255
(crossbody harness, approx 8 cm right of i/p cluster
(i/p harness, approx 12 cm into steering column harness breakout)
(i/p harness, approx 4 cm from i/p cluster breakout)
(i/p harness, approx 4 cm into auxiliary power outlet)
(i/p harness, approx 4 cm into transfer case control module breakout)
(i/p harness, approx 8 cm from dlc breakout) s200
(inside left front door harness, near tweeter)
(pickup-crossbody harness, approx 9 cm from i/p cluster breakout, crewcab-cross- body harness, approx 1 cm from door lock relay breakout, others-crossbody harness, approx 6 cm from door lock relay breakout)
(pickup-front to rear body harness, approx 6 cm from front dome lamp harness breakout, suburban w/ rear a/c-front to rear body harness, approx 55 cm from rear dome lamp harness breakout, suburban w/o rear a/c-front to rear body harness, approx 25 cm into crossbody harness breakout)
(power lumbar seat jumper harness, approx 13 cm from right power seat breakout)
A/t
Acc
Audio alarm module
Aux/pwr fuse 7 25a
Auxiliary power connector
C210
Cig ltr fuse 13 20a
Cigar lighter
Clutch pedal position switch
Convenience center
Crank fuse 8 10a
D14
D15
Data link connector
Door lock control module
Door lock relay
From underhood a fuse-relay center (diagram 1 of 4)
G202 (left side of i/p)
Harness breakout)
I/p fuse block
Ignition switch
Instrument cluster
Left front door lock switch
Left front power lumbar seat switch
Left power seat
Lock
M/t
Maxi fuse 5 50a
Maxi fuse 6 40a
Maxi fuse 7 50a
Nca
Off
Park/neutral position switch
Pickup
Pnk
Power amplifier relay
Power wdo circuit breaker 30a
Power window master switch
Pwr-accy circuit breaker 20a
Radio
Radio batt fuse 19 10a
Radio fuse 17 10a
Rear door lock switch
Rear liftgate release switch
Rear window lockout switch (4-dr)
Rear window wiper/washer switch (suburban/utility)
Red
Remote control door lock receiver
Right front door lock switch
Right front power lumbar seat switch
Right front power window switch (2 dr & utility)
Rr wiper fuse 23 25a
Run
S201
S218
S256
S264
S266
S270
S299
S300
S434
Start
Starter relay
Stop/haz fuse 1 20a
Suburban only
Suburban/ utility
T case fuse 2 20a
Tcc/stoplamp switch
To i/p fuse block (diagram 4 of 4)
To security/ strg fuse 21 (diagram 4 of 4)
To underhood fuse-relay center (diagram 3 of 4)
Trans fuse 20 10a
Trans- mission
Transfer case control module
Turn/ hazard switch
Underhood fuse-relay center
W/bench seat
W/o bench seat
Windshield wiper motor module
Windshield wiper/ washer switch
Wiper fuse 11 25a

Power Distribution Wiring Diagram (3 of 4) for Chevrolet Suburban C1997 2500

List of elements for Power Distribution Wiring Diagram (3 of 4) for Chevrolet Suburban C1997 2500:

100

(a/t)
(engine harness, approx 11 cm into fuse-relay center breakout) pnk
(engine harness, approx 11-13 cm from ignition coil breakout)
(engine harness, approx 22 cm into underhood fuse- relay center breakout)
(engine harness, approx 29 cm from fuse-relay center breakout)
(engine harness, approx 30 cm from egr harness breakout)
(engine harness, approx 5 cm from backup lamp switch harness breakout)
(engine harness, approx 7 cm from egr breakout)
(engine harness, approx 8 cm into breakout to fuel injector connector)
(i/p harness, approx 10 cm from tcc/ stoplamp switch connector breakout) pnk
(i/p harness, approx 13 cm from dlc harness breakout)
(in injector harness jumper)
(m/t)
(oxygen sensor jumper harness, approx 17 cm into harness)
(taillamp extension harness, approx 65 cm from fuel pump balance module breakout)
4.3l
5.0l, 5.7l
6.5l
7.4l
7.4l w/ california emissions
A/c clutch relay
Air bag fuse 10 10a
Air injection reaction secondary relay
Audio alarm module
B pnk
Backup lamp switch
C pnk
C11
C12
C218
Camshaft position sensor
Convenience center
Crank- shaft position sensor
Daytime running lamps module
Daytime running lamps relay
Diesel
Diesel only
Ecm 1 mini fuse 20a
Egr solenoid
Egr vent solenoid
Electrochromatic mirror w/ compass
Electronic injection pump
Eng-1 mini fuse 20a
Evaporative emission canister vent
Evaporative emissions canister purge solenoid valve
Exhaust gas recirculation valve
From ignition switch (diagram 2 of 4)
Fuel heater
Fuel injector
Fuel pump balance module
Fuel pump balance relay
Fuel sol mini fuse 20a
Fuel tank sender module (4.3l)
Gasoline
Gauges fuse 4 10a
Glow plug control module
Headlamp/ panel dimmer switch
Heated oxygen sensor 1
Heated oxygen sensor 2
Heated oxygen sensor 3
Heated oxygen sensor 4
I/p cluster
I/p fuse block
Ign e mini fuse 10a
Ignition coil
Ignition control module
Inflatable restraint i/p module enable switch
Inflatable restraint sensing and diagnostic module
Interior lamp control module or remote control door lock receiver
Low coolant level indicator module (diesel)
M/t
Mass air flow sensor
Mass airflow sensor
Nca
Nca
Others
Pnk
Pnk s104
Pnk s154
Pnk s207
Power steering control module
Powertrain control module
S104
S108
S109
S146
S148
S155 pnk
S161
S213 pnk
S315
Transfer case control module
Transfer case select switch
Turn b/u fuse 16 20a
Turn signal switch
Underhood fuse-relay center
Vehicle control module
Vehicle speed sensor buffer (diesel)
Wastegate solenoid
Water-in- fuel sensor

Power Distribution Wiring Diagram (4 of 4) for Chevrolet Suburban C1997 2500

List of elements for Power Distribution Wiring Diagram (4 of 4) for Chevrolet Suburban C1997 2500:

55

(engine harness, approx 6 cm into ebcm breakout)
(hvac harness, approx 4 cm from recirculation door breakout) s243
(i/p harness, approx 29 cm from tcc/stoplamp switch)
(i/p harness, approx 4 cm from steering column breakout)
(i/p harness, approx 6 cm into heater a/c control connector breakout)
(rear a/c-rear a/c harness, approx 17 cm from blower motor relays, rear heat and a/c-rear heat and a/c harness, approx 4 cm from blower motor relays)
(rear hvac control harness, approx 5 cm from hvac logic module breakout) s308
4wd fuse 24 25a
A13
Auxiliary battery
Auxiliary battery relay (left rear of engine compt)
Auxiliary heater and a/c control logic module
Auxiliary heater and a/c control module (front)
Auxiliary heater and a/c control module (rear)
Brake fuse 18 10a
C205
Convenience center
Cruise control module
Cruise control switch
Cruise fuse 6 10a
Diesel
Electronic brake control module
Except diesel
From ignition switch (diagram 2 of 4)
From stop/haz fuse 1 (diagram 2 of 4)
From underhood fuse-relay center (diagram 1 of 4)
Front mode door motor
Front temperature door motor
Fusible link
G100 (left front fender)
Heater and a/c control module
Heater and a/c control switch
Htr-a/c fuse 12 25a
I/p fuse block
Illum fuse 14 10a
Interior lights system
Interior lights system (headlamp and panel lamp dimmer)
Power steering control module
Rear auxiliary mode door motor
Rear auxiliary temperature door motor
Rear high blower relay
Rear low blower relay
Rear medium blower relay
Recirculation door motor
Rr hvac fuse 5 20a
S151
S206
S235
S268
S400
Security/ strg fuse 21 10a
Spare power source
Tcc/ stoplamp switch
Transfer case select switch
Vehicle control module

POWER DOOR LOCKS

Door Lock Wiring Diagram, with Crew Cab Or Utility for Chevrolet Suburban C1997 2500

List of elements for Door Lock Wiring Diagram, with Crew Cab Or Utility for Chevrolet Suburban C1997 2500:

43

(crossbody harn, under left side of dash) s258
(crossbody harness, 6cm from seat belt switch breakout)
(crossbody harness, near door lock relay breakout) s256
(front to rear harness, near dome lamp harn breakout) s434
(front to rear harness, near rear window harn breakout) s431
Batt (b+)
C210
Cig ltr fuse 13 20a
Convenience center (left side of dash)
Door jamb sw
Door lock control module (utility w/ cargo doors) (forward of left rear wheelwell, behind panel)
Door lock relay (under center of dash, near remote control door lock receiver)
G202 (left end of i/p, near fuse block)
G305 (right "b" pillar)
Ground
Hot at all times
I/p fuse block (left side of dash)
Interior lights system
Left door lock switch
Left front door lock actuator
Left rear door lock actuator
Lock
Lock sig
Nca
Pwr accy c.b. 30a
Rear cargo door lock actuator (cargo doors)
Rear door jamb switch
Rear door lock switch (cargo doors)
Right door lock switch
Right front door lock actuator
Right rear cargo door contactor (right rear door jamb)
Right rear door lock actuator
Rr door sw
S251
S257 (crossbody harness, near door lock relay harness breakout)
S261 (crossbody harness, 12cm from seat belt switch breakout)
S410
S432 (front to rear harness, near left rear speaker harness breakout)
Tan
Unlock
Unlock sig
W/ power windows
W/o power windows

Keyless Entry Wiring Diagram, with Crew Cab Or Utility for Chevrolet Suburban C1997 2500

List of elements for Keyless Entry Wiring Diagram, with Crew Cab Or Utility for Chevrolet Suburban C1997 2500:

64

(cross body harness, 6cm from seat belt switch breakout)
(crossbody harn, under left side of dash) s258
(crossbody harness, near door lock relay breakout) s256
(front to rear harness, near dome lamp harn breakout) s434
(front to rear harness, near rear window harn breakout) s431
(utility w/ cargo doors)
Batt (b+)
C210
Cig ltr fuse 13 20a
Convenience center (left side of dash)
Data link connector (under left side of dash)
Dome lamps
Dome lmp off
Door jamb sw
Door lock control module (utility w/ cargo doors) (forward of left rear wheelwell, behind panel)
Door lock relay (under center of dash, near remote control door lock receiver)
Driver dr unlk
G202 (left end of i/p, near fuse block)
G305 (right "b" pillar)
Gauges fuse 4 10a
Ground
Hot at all times
Hot in run, bulb test or start
I/p fuse block (left side of dash)
Ignition
Interior lamps system
Interior lights system
Left door lock switch
Left front door lock actuator
Left rear door lock actuator
Lock
Lock out
Lock sig
Nca
Pass drs unlk
Pnk
Program sig
Pwr accy c.b. 30a
Rear cargo door lock actuator (cargo doors)
Rear door jamb switch
Rear door lock switch (cargo doors)
Remote control door lock receiver (under center of dash panel)
Right door lock switch
Right front door lock actuator
Right rear cargo door contactor (right rear door jamb)
Right rear door lock actuator
Rr door sw
Rr lftgte unlk
S213
S251
S255
S257 (crossbody harness, near door lock relay harness breakout)
S261 (crossbody harness, 12cm from seat belt switch breakout)
S410
S432 (front to rear harness, near left rear speaker harness breakout)
Tan
Trunk, tail- gate, fuel doors system
Unlock
Unlock out
Unlock sig
Utility w/ rear cargo doors
Utility w/ rear lift gate/window
W/ power windows
W/o power windows

POWER MIRRORS

Power Mirror Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Power Mirror Wiring Diagram for Chevrolet Suburban C1997 2500:

23

(inside left front door harness)
(inside right front door harness)
Convenience center (behind left side of i/p)
Ctsy fuse 3 20a
Down
G202 (behind left side of i/p)
Hot at all times
I/p fuse block
Illum- nation lamp
Interior lights system
Left
Left outside power rearview mirror
Left/ right motor
Power outside rearview mirror switch
Red
Right
Right outside power rearview mirror
S204
S248
S251
S503
S602
Up/ down motor

POWER SEATS

6-Way Power Seat Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for 6-Way Power Seat Wiring Diagram for Chevrolet Suburban C1997 2500:

25

(behind left side of i/p)
(crossbody harn, approx 12.5 cm right of left door harn breakout, toward i/p harn breakout)
(power lumbar seat jumper, approx 20 cm from right power seat breakout)
(w/ reg/extended cab) (except reg/extended cab)
Back
C210
Convenience center (under left side of i/p)
Down
Entire seat
For- ward
Forward/ rearward motor
Front height
Front tilt motor
G202
Hot at all times
I/p fuse block (left side of i/p)
Lumbar support circuit
Power seat switch
Pwr accy circuit breaker 20a 30a
Rear height
Rear tilt motor
S204
S251
S255 (crossbody harn, approx 11.5 cm from convenience center breakout)
Tan

Lumbar Wiring Diagram, Bench Seat for Chevrolet Suburban C1997 2500

List of elements for Lumbar Wiring Diagram, Bench Seat for Chevrolet Suburban C1997 2500:

19

(crossbody harn, approx 6 cm from door lock relay breakout)
(front to rear body harn, approx 6 cm from left kick panel breakout)
(power lumbar seat jumper harn, approx 13.5 cm from right power seat breakout)
C210 b
Cig ltr fuse 13 20a
Convenience center (under left side of i/p)
G202 (behind left side of i/p)
Hot at all times
I/p fuse block (lower left side of i/p)
Left power lumbar support switch
Pnk
Power lumbar motor
Right power lumbar support switch
S204
S251
S256
S264 (suburban utility only)
S300
S310 (suburban)

Lumbar Wiring Diagram, Bucket And Split Bench Seat for Chevrolet Suburban C1997 2500

List of elements for Lumbar Wiring Diagram, Bucket And Split Bench Seat for Chevrolet Suburban C1997 2500:

17

(crossbody harn, approx 6 cm from door lock relay breakout)
6-way power seat circuit
Cig ltr fuse 13 20a
Convenience center (under left side of i/p)
G202 (behind left side of i/p)
Hot at all times
I/p fuse block (lower left side of i/p)
Left power lumbar support motor
Left power lumbar support switch
Pnk
Right power lumbar support motor
Right power lumbar support switch
S204
S251
S259
S264 (suburban utility only)
S303

POWER WINDOWS

Power Window Wiring Diagram, 2 Door for Chevrolet Suburban C1997 2500

List of elements for Power Window Wiring Diagram, 2 Door for Chevrolet Suburban C1997 2500:

21

Convenience center (under left side of i/p)
Down
G202 (below left side of i/p)
Hot in run
I/p fuse block (lower left side of i/p)
Interior lights system
Left front
Left front window motor
Left power window master switch
Pwr wdo circuit breaker 30a
Right front
Right front window motor
Right front window switch
S204
S251
S259
S266
S500
S501
Solid state
Tan

Power Window Wiring Diagram, 4 Door for Chevrolet Suburban C1997 2500

List of elements for Power Window Wiring Diagram, 4 Door for Chevrolet Suburban C1997 2500:

32

(crossbody harn, approx 25cm from seat belt sw breakout toward i/p harn breakout)
Convenience center (under left side of i/p)
Down
Fuse block (lower left side of i/p)
G202 (below left side of i/p)
Headlamp and panel dimmer switch
Hot at all times
Hot in run
Left front
Left front power window master switch
Left front window motor
Left rear
Left rear window motor
Left rear window switch
Pk lps fuse 20a
Pwr wdo circuit breaker 30a
Right front
Right front window motor
Right front window switch
Right rear
Right rear window motor
Right rear window switch
S204
S247 (crossbody harn, approx 6cm into left door harn breakout)
S251
S263
S500
S501
S502 (left front door harn, near tweeter)
Solid state
Tan
Window lockout switch

RADIO

Radio Wiring Diagrams, with Amplifier for Chevrolet Suburban C1997 2500

List of elements for Radio Wiring Diagrams, with Amplifier for Chevrolet Suburban C1997 2500:

82

(left side of dash) data link connector
(lf door harn, near window reg breakout)
(rf door harn, near door lock motor breakout)
Amp feed
Antenna
Audio rtn
Bare
Battery
Cig ltr fuse 13 20a
Diesel
Dim
Dim feed
Display dim
Drain rtn
E&c diag
Fuse out
G201 (right side of dash)
G202 (left side of dash)
Gas
Ground
Hot at all times
Hot in acc or run
I/p fuse block
Interior lights system
Left front speaker
Left front tweeter
Left rear door speaker
Left rear speaker
Lf +
Lf -
Lr +
Lr dr +
Lr dr -
Lr _
Lr+
Lr-
Lt audio
Lt remote
Nca
Pnk
Power amplifier (under left side of dash)
Power amplifier relay (under left side of dash)
Radio
Radio batt fuse 19 10a
Radio fuse 17 10a
Red
Remote audio player
Remote rtn
Rf +
Rf -
Right front speaker
Right front tweeter
Right rear door speaker
Right rear speaker
Rly sig
Rr +
Rr -
Rr dr +
Rr dr -
Rr+
Rr-
Rt audio
Rt remote
S221
S249
S250
S251
S252
S254
S256
S259
S298
S504
S505
S603
S604
Serial data
Tan
Tape ctrl
Vehicle control module (left side of engine compartment)
Vehicle speed sensor buffer (behind right side of dash)
Vss signal

Radio Wiring Diagrams, without Amplifier for Chevrolet Suburban C1997 2500

List of elements for Radio Wiring Diagrams, without Amplifier for Chevrolet Suburban C1997 2500:

59

(left side of dash) data link connector
(lf door harn, near window reg breakout)
(rf door harn, near door lock motor breakout)
Amp feed
Antenna
Audio rtn
Bare
Battery
Diesel
Dim
Dim feed
Display dim
Drain rtn
E&c diag
Fuse out
G202 (left side of dash)
Gas
Ground
Hot at all times
Hot in acc or run
I/p fuse block
Interior lights system
Left front speaker
Left front tweeter
Left rear speaker
Lf +
Lf -
Lr +
Lr _
Lt audio
Lt remote
Nca
Pnk
Radio
Radio batt fuse 19 10a
Radio fuse 17 10a
Remote audio player
Remote rtn
Rf +
Rf -
Right front speaker
Right front tweeter
Right rear speaker
Rr +
Rr -
Rt audio
Rt remote
S221
S298
S504
S505
S603
S604
Serial data
Tan
Tape ctrl
Vehicle control module (left side of engine compartment)
Vehicle speed sensor buffer (behind right side of dash)
Vss signal

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Shift Interlock Wiring Diagram for Chevrolet Suburban C1997 2500:

11

Automatic transmission shift lock control (btsi) solenoid (right side of steering column)
G202 (behind left side of dash)
Hot in run or start
I/p fuse block
Park/ neutral position switch (left side of transmission)
Pnk
S204
Transfer case control module (under dash on steering column support bracket)
Turn/ hazard switch
Turn/bu fuse 16 20a
W/ electric shift transfer case

STARTING/CHARGING

Charging Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Charging Wiring Diagram for Chevrolet Suburban C1997 2500:

28

(diesel)
(gas)
(gas-left front of engine, diesel-left front of intake manifold)
(gasoline)
(left front of intake manifold)
(not used)
(not used) s
(right front wheelhouse)
Charge indicator
Diesel only
Fusible link (10 ga-rust)
G101
G110
G119 (gas) g110 (diesel)
G133
Gauges fuse 4 10a
Generator
Hot in run, or start
I/p fuse block
Instrument cluster
Left battery (diesel)
Pnk
Power distribution system
Red
Right battery
S213
Starting circuit
Tach

Starting Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Starting Wiring Diagram for Chevrolet Suburban C1997 2500:

37

(gas-left front of eng., diesel-left front of intake manifold)
(left front of intake manifold)
(right front of engine-gas, rear of right cylinder head-diesel)
(right front wheelhouse)
A/t
Accy
Battery stud
Bulb test
Charging circuit
Clutch pedal position switch (top of clutch pedal)
Crank fuse 8 10a
Diesel
G101
G110
G119 (gas) g110 (diesel)
G120 (gas) g117 (diesel)
Gas
Hold- in coil
I/p fuse block
Ignition switch
Left battery (diesel)
Lock
M/t
Maxi fuse 6 40a
Nca
Off
Pull- in coil
Red
Right battery
Run
S107
Start
Starter motor
Starter relay
Starter solenoid
Transmission range switch (left side of transmission)
Underhood fuse-relay center

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Supplemental Restraint Wiring Diagram for Chevrolet Suburban C1997 2500:

42

Air bag fuse 10 10a
Air bag warning indicator
B nca
Bar
Cluster
Data line
Data link connector (under left side of i/p)
Driver high
Driver low
Front end discriminating sensor (front center of engine compt)
G202 (left side of i/p)
Gauges fuse 10a
Ground
Hot in park or headlamp
Hot in run, bulb test or start
I/p fuse block
Ign 1
Illum fuse 14 10a
Indicator lamp
Inflatable restraint i/p module enable switch (center of i/p)
Inflatable restraint sensing and diagnostic module (below right seat)
Inflatable restraint steering wheel module
Instrument
Interior lights (dimmer swtch)
Nca
Pass disable
Pass enable
Pass high
Pass low
Passenger inflator module (right i/p)
Pnk
S213 (i/p harn, near breakout to datalink conn)
S217 (i/p harn, near breakout to radio harn)
S218 (i/p harn, near breakout to radio harn) g202 (behind left side of i/p)
Seat belt sig
Sensor feed
Shorting
Shorting bar
Sir coil assembly
Solid state
Tan
Warning systems (seat belt switch)

TRANSMISSION

5.7L

5.7L (VIN R), Transmission Wiring Diagram, 4L60-E for Chevrolet Suburban C1997 2500

List of elements for 5.7L (VIN R), Transmission Wiring Diagram, 4L60-E for Chevrolet Suburban C1997 2500:

79

(2wd only)
(4wd only)
(left side of transmission-2wd) (left side of transfer case-4wd)
1-2 shift sol
1-2 shift solenoid
2-3 shift sol
2-3 shift solenoid
3-2 ctrl solenoid
3-2 downshift sol
4wd low signal in
5v reference
Automatic transmission (4l60-e)
Battery in
Brake fuse 18 10a
Brake switch input
Dash fuse block
Data class ii
Data link connector (under left side of dash)
Ecm 1 fuse 20a
Ecm b fuse 20a
Ect sens input
Electronic brake control module
Eng 1 fuse 20a
Engine coolant temp sensor (top right front of engine)
Front wheel lock
Fuel injectors, ignition control moudule & ignition coil
Fuel pump & oil press switch/ sender & fuel pump relay
G120 (top of right cylinder head)
Gauges fuse 4 10a
Hot at all times
Hot in off, run or start
Hot in run
Hot in run or start
Ignition in
Instrument cluster
Maf sensor & heated oxygen sensors
Malfunction indicator lamp
Mil control
Pcm ground
Pcs sol hi out
Pcs sol lo out
Pnk
Press ctrl solenoid
Range signal "a"
Range signal "b"
Range signal "c"
Red
S101
S103
S108
S150 (engine harn, 13 cm from bpmv break-out)
S151
S161
S213
S231 (engine harness, near map or egr break-out)
Sensor ground
Sensor return
Solenoid
Stoplamp switch (on brake pedal bracket)
Tan
Tcc
Tcc pwm
Tcc pwm sol
Tcc sol
Throttle position sensor (mounted to side of throttle body)
Tp sens input
Trans fluid temp sensor
Trans fuse 20 10a
Trans range pressure switch assembly
Trans range switches
Trans temp sig in
Transfer case & axle switches (4wd only)
Transfer case circuit
Underhood fuse/relay center
Vehicle control module (left side of engine compt)
Vehicle speed sensor
Vehicle speed sensor adaptor (4wd only)
Vss hi
Vss lo

6.5L

6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for Chevrolet Suburban C1997 2500

List of elements for 6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for Chevrolet Suburban C1997 2500:

99

(2wd only)
(4wd only)
(i/p harn, 4 cm from engine harn break-out)
1-2 shift sol
1-2 shift solenoid
2-3 shift sol
2-3 shift solenoid
4wd low signal in
A/t iss sens hi in
A/t iss sens in
A/t iss sens lo in
A/t iss sensor out
A12
Accelerator pedal position module (part of accelerator pedal)
App 1 5v ref
App 1 signal in
App 2 5v ref
App 2 signal in
App 3 5v ref
App 3 signal in
Automatic transmission
Automatic transmission input shaft speed sensor (left front of transmission)
B10
B12
Battery in
Brake fuse 18 10a
Brake switch assembly (on brake pedal bracket)
Brake switch in
C11
C12
C13
C14
C15
Class ii data
D11
D12
D13
Data link connector (under left side of dash)
Ecm 1 fuse 20a
Ecm b fuse 20a
Ect sensor in
Engine coolant temp sensor (near thermostat housing)
Front wheel lock
Fuel pump & oil press switch/ sender & fuel pump relay
G120 (right top of cylinder head)
Gauges fuse 4 10a
Ground
Hot at all times
Hot in run
Hot in run or start
Hot in run, bulb test or start
I/p fuse block
Ignition in
Instrument cluster
Malfunction indicator lamp
Mil control
Pcm ground
Pcs sol hi out
Pcs sol lo out
Pnk
Power
Powertrain control module (right side of dash near blower motor)
Press ctrl
Red
S101
S103
S140 (engine sensor harness)
S150 (engine harness, 13 cm from bpmv harness break-out)
S152 (engine harn, 4 cm from i/p break-out)
S211
S213
S220 (i/p harn, 12 cm from brake switch connector)
S299
Sensor ground
Solenoid
Stop/haz fuse 1 20a
Stoplamp switch in
Tan
Tcc pwm
Tcc pwm sol
Tft sensor in
Trans fluid temp sensor
Trans fuse 20 10a
Trans range "a"
Trans range "b"
Trans range "c"
Trans range pressure switch assembly
Trans range switches
Transfer case & axle switches
Transfer case circuit
Turn/ hazard switch & chime module
Underhood fuse/relay center
Vehicle speed sensor (on transmission-2wd) (on transfer case-4wd)
Vehicle speed sensor (vss) adaptor (4wd only)
Vehicle speed sensor buffer (right side of dash)
Vss hi in
Vss in
Vss lo in
Vss out

TRUNK, TAILGATE, FUEL DOOR

Rear Glass Release Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Rear Glass Release Wiring Diagram for Chevrolet Suburban C1997 2500:

21

(i/p harn, approx 4 cm into crossbody harn breakout) s271
C210
Cig ltr fuse 13 20a
Convenience center (under left side of i/p)
D16
Endgate window release switch
G132 (gasoline) (right front of engine block)
G134 (diesel) (right top of cylinder head)
Hot at all times
I/p fuse block
Interior lights system
Liftgate release motor
Liftgate unlock
Park neutral signal
Park/ neutral position switch (left side of transmission)
Remote control door lock receiver (under center of i/p)
S162 (gasoline) s107 (diesel)
S264
S265 (crossbody harn, approx 6.5 cm from left door breakout)
Transfer case control module (tccm) (on steering column sup- port bracket)
W/ rke

WARNING SYSTEMS

Warning System Wiring Diagrams for Chevrolet Suburban C1997 2500

List of elements for Warning System Wiring Diagrams for Chevrolet Suburban C1997 2500:

37

Audio alarm module (in convenience center)
Battery input
C210
Convenience center (under left side of i/p)
Diesel
Ex diesel
Fasten belts out
G120 (right top of cylinder head)
G134 (front top of engine)
G202 (behind left side of i/p)
Gauges fuse 4 10a
Ground
Hot at all times
Hot in park or head
Hot in run, bulb test or start
I/p fuse block
Ign on
Illum fuse 14 10a
Instru- ment cluster
Interior lights system
Key-in warning
Key-in warning buzzer switch (left side of steering column)
Left door jamb switch
Lights on input
Pnk
S204
S213
S215
S217 (i/p harn, approx 5 cm from headlamp switch breakout)
S259
S298
S299
Safety belts indicator
Seat belt input
Seat belt switch (in driver's safety belt buckle)
Stop/haz fuse 1 20a
Tan

WIPER/WASHER

Front Wiper/Washer Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Front Wiper/Washer Wiring Diagram for Chevrolet Suburban C1997 2500:

21

Front windshield washer pump motor
G108 (left radiator support)
G202 (behind left side of dash)
Hot in accy or run
I/p fuse block (under left side of dash)
Inst wipe
Low
Mist
Nca
Off
Pulse
Red
S158
S204
Solid state
Wash
Washer switch
Windshield wiper motor module (on firewall, behind wiper motor)
Windshield wiper/ washer switch
Wiper fuse 11 25a
Wiper switch

Rear Wiper/Washer Wiring Diagram for Chevrolet Suburban C1997 2500

List of elements for Rear Wiper/Washer Wiring Diagram for Chevrolet Suburban C1997 2500:

17

Convenience center (under left side of dash)
Delay
G108 (left radiator support)
G305 (right "b" pillar)
Hot in accy or run
I/p fuse block (under left side of dash)
Interior lights system
Off
Rear window washer pump motor
Rear window wiper/ washer switch
Rear window wiper/washer module (on lower inner center of rear window)
Rr wpr fuse 23 25a
S158
S219
S410
Solid state
Wash