All Wiring Diagrams for GMC Cab & Chassis C1993 3500

DEFOGGERS

Defogger Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for Defogger Wiring Diagram for GMC Cab & Chassis C1993 3500:

(below right side of rear window)
Convenience center (left side of steering column)
Defogger
Defogger control
Fuse block (left side of i/p)
G202 (left side of i/p)
G307
Gages fuse 20a
Hot at all times
Hot in run or start
Interior lights system
On indicator
On/off
Panel light
Pwr acc (or acc/batt) circuit breaker 30a
Timer

(front of right front fender) g101
(left radiator support) g108
Base
Convenience center (left side of i/p)
Fuse block (left side of i/p)
Horn relay
Horn switch
Hot at all times
Left horn (below left headlamp)
Park lp fuse 20a
Right horn (front of center radiator support)
V22 only

(under left side of i/p)
Acc-batt circuit breaker 30a
Convenience center
Fuse block
G202 (at dlc connector)
Hot at all times
Left front door lock motor
Left front door lock switch
Lock
Right front door lock motor
Right front door lock switch
Tan
Unlock

Acc-batt circuit breaker 30a
Convenience center (under left side of i/p)
Convenience center (under left side of i/p)
Down
Fuse block
G206 (at dlc connector)
Hot at all times
In-line fuse
Left
Left outside power mirror
Left/ right motor
Power outside rearview mirror switch
Right
Up/ down motor

30a
Acc-batt circuit breaker
Back
Convenience center (under left side of i/p)
Down
Entire seat
For- ward
Forward/ rearward motor
Front height
Front tilt motor
Fuse block
G206 (at dlc connector)
Hot at all times
Power seat switch
Rear height
Rear tilt motor
Tan

(under left side of dash)
Acc-ign circuit breaker (exc 1994) 30a
C247
C503
C507
Convenience center
Fuse block
G206 (at dlc connector)
Hot in acc or run
Left front power window motor
Left front switch
Left power window master switch
Pnk
Pwr-wdo circuit breaker (1994) 30a
Right front power window motor
Right front switch
Right front window switch
Tan

(ex 1994) (1994)
(ex. 1991)
Antenna
Antenna input
Coaxial cable
Ctsy fuse 20a
Dimmer
Fuse block (under left side of dash)
G206 (center of dash)
Ground
Hot at all times
Hot in accy or run
Ign
Interior lights system
Left front speaker
Lt frt spkr
Memory(bat)
Park lamp
Radio
Radio fuse 10a 15a
Right front speaker
Rt frt spkr
Tan

(ex 1994) (1994)
Antenna
Antenna out
Battery
C243
C244
C247
C248
C251
Cassette deck
Ctsy fuse 20a
Data
Dimmer
Fuse block (under left side of dash)
G206 (center of dash)
Graphic equalizer
Ground
Hi ground
Hot at all times
Hot in accy or run
Ignition
Interior lights system
Left audio
Left front speaker
Left rear speaker
Lf (+)
Lf (-)
Lo ground
Lr (+)
Lr (-)
Mem (data)
Memory
Mute
Park lamp
Pnk
Power antenna system
Radio control head
Radio fuse 10a 15a
Radio receiver
Red
Rf (+)
Rf (-)
Right audio
Right front speaker
Right rear speaker
Rr (+)
Rr (-)
Tan
Tape on
Volt

(ex 1994) (1994)
Amplifier relay
Antenna
Antenna out
Battery
C10
C11
C12
C13
C14
C15
C243
C244
C247
C248
C251
Cassette deck
Convenience center (under left side of dash)
Ctsy fuse 20a
Data
Dimmer
Fuse block (under left side of dash)
G206 (center of dash)
Graphic equalizer
Ground
Hi ground
Hot at all times
Hot in accy or run
Ignition
Interior lights system
Left audio
Left front speaker
Left rear side door speaker
Left rear speaker
Lf (+)
Lf (-)
Lo ground
Lr (+)
Lr (-)
Lt rr door spkr
Lt rr spkr
Mem (data)
Memory
Mute
Not used
Park lamp
Pnk
Power amplifier relay (under dash, left of pedal bracket)
Radio control head
Radio fuse 10a 15a
Radio power amplifier (under driver's seat)
Radio receiver
Red
Rf (+)
Rf (-)
Right audio
Right front speaker
Right rear side door speaker
Right rear speaker
Rr (+)
Rr (-)
Rt rr door spkr
Rt rr spkr
Tan
Tape on
Volt

(right inner fender near battery) g101
Battery
Fuse block (left side of dash)
G110 (left front of engine)
G119 (right front of engine)
Gages fuse 20a
Gen indicator
Generator
Hot in start or run
Instrument cluster
Junction block (rear of engine compt)
Left battery (w/ dual batteries or diesel)
Red
Starting system

A/t
Acc
Battery
Clutch pedal position switch (top of clutch pedal)
Crank fuse (1993)
G101 (right inner fender near battery)
G110 (left front of engine)
G119 (right front of engine)
Hot at all times
Ignition switch
Left battery (w/ dual batteries or diesel)
Lock
M/t
Off
Power distribution system
Run
Start
Starter motor

(under right end of i/p)
1-2 shift sol
1-2 shift sol ctrl
2-3 shift sol
2-3 shift sol ctrl
3-2 shift sol
3-2 shift sol ctrl
A14
A15
Battery feed
Brake sig
C10
C13
C14
C215
C218
Data link connector (below left side of i/p)
Diagnostic test
E10
E13
E15
E16
Ecm-ign fuse 10a
Ect sig
Electronic 4-speed automatic overdrive transmission
Engine coolant temperature (ect) sensor (top front of engine)
F10
F12
F13
F14
F15 f15
Fuse block
G110 (left top front of engine)
Hot at all times
Hot in run, bulb
Hot in start or run
Ignition feed
Pnk
Powertrain control module (pcm)
Pressure control hi
Pressure control lo
Pressure control solenoid
Range mode selector
Range signal "a"
Range signal "b"
Range signal "c"
Red
Sensor ground
Serial data
Speed sensor (left rear side of transmission)
System ground
Tcc
Tcc sol
Tcc/brake switch (top of brake pedal)
Test or start
Throttle position sensor (right side of tbi)
Tp reference
Tp signal
Trans fluid temp (tft) sensor
Trans fluid temp sig
Trans fuse 10a
Trans output speed
Vehicle speed sensor buffer (under right end of i/p)
Vss sig

(under right end of i/p)
12v battery
12v ignition
5v sensor ref
A12
B10
B11
C10
C11
C13
D15
D16
Data link connector (below left side of i/p)
Dlc
Ecm-ign fuse 10a
Electronic 4-speed automatic overdrive transmission
Eng coolant temp
Engine coolant temperature (ect) sensor (top front of engine)
Force motor hi
Force motor lo
Fuse block
G110 (left top front of engine)
G125 (top front center of engine)
Hot at all times
Hot in start or run
Input speed hi
Input speed lo
Map sensor
Map sensor gnd
Pnk
Powertrain control module (pcm)
Press sw manifold a
Press sw manifold b
Press sw manifold c
Pressure control solenoid
Range mode selector
Red
Serial data
Shift a sol
Shift b sol
Solenoid a driver
Solenoid b driver
Speed sensor (left rear side of transmission)
System ground
Tan
Tcc driver
Tcc sol
Tcc/brake sig
Tcc/brake switch (top of brake pedal)
Throttle position sensor (right side of tbi)
Tp sensor
Tp sensor ground
Trans fluid temp (tft) sensor
Trans fuse 10a
Transmission input speed sensor (left side of transmission)
Transmission temp
Vehicle speed sensor buffer (under right end of i/p)
Vin n & z
Vin z
Vss sensor buffer

4wd fuse 25a
4wd indicator lamp
C215a
C216a
Convenience center (under left side of i/p)
Front axle actuator solenoid (right side of front drive axle)
Front axle solenoid switch (right rear side of front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Red
Rwal diode module (under left side of i/p)
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case relay (right rear of eng compt, near battery junction block)
Transfer case switch (left top of transfer case)
Transfer case syncronizer
W h t

(right rear side of
(under right end of i/p)
4 wheel drive input (not used)
4 wheel drive low signal
4wd fuse 25a
4wd indicator lamp
C215
C215a
C216a
Convenience center (under left side of i/p)
Ehcu module (near master cylinder)
Front axle
Front axle actuator solenoid (right side of front drive axle)
Front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Pickup
Powertrain control module
Rwal diode module (under left side of i/p)
Solenoid switch
Suburban, utility
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case switch (left top of transfer case)
W h t

(under right end of i/p)
1-2 shift sol
1-2 shift sol ctrl
2-3 shift sol
2-3 shift sol ctrl
3-2 shift sol
3-2 shift sol ctrl
A14
A15
Battery feed
Brake sig
C10
C13
C14
C215
C218
Data link connector (below left side of i/p)
Diagnostic test
E10
E13
E15
E16
Ecm-ign fuse 10a
Ect sig
Electronic 4-speed automatic overdrive transmission
Engine coolant temperature (ect) sensor (top front of engine)
F10
F12
F13
F14
F15 f15
Fuse block
G110 (left top front of engine)
Hot at all times
Hot in run, bulb
Hot in start or run
Ignition feed
Pnk
Powertrain control module (pcm)
Pressure control hi
Pressure control lo
Pressure control solenoid
Range mode selector
Range signal "a"
Range signal "b"
Range signal "c"
Red
Sensor ground
Serial data
Speed sensor (left rear side of transmission)
System ground
Tcc
Tcc sol
Tcc/brake switch (top of brake pedal)
Test or start
Throttle position sensor (right side of tbi)
Tp reference
Tp signal
Trans fluid temp (tft) sensor
Trans fluid temp sig
Trans fuse 10a
Trans output speed
Vehicle speed sensor buffer (under right end of i/p)
Vss sig

4wd fuse 25a
4wd indicator lamp
C215a
C216a
Convenience center (under left side of i/p)
Front axle actuator solenoid (right side of front drive axle)
Front axle solenoid switch (right rear side of front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Red
Rwal diode module (under left side of i/p)
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case relay (right rear of eng compt, near battery junction block)
Transfer case switch (left top of transfer case)
Transfer case syncronizer
W h t

(right rear side of
(under right end of i/p)
4 wheel drive input (not used)
4 wheel drive low signal
4wd fuse 25a
4wd indicator lamp
C215
C215a
C216a
Convenience center (under left side of i/p)
Ehcu module (near master cylinder)
Front axle
Front axle actuator solenoid (right side of front drive axle)
Front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Pickup
Powertrain control module
Rwal diode module (under left side of i/p)
Solenoid switch
Suburban, utility
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case switch (left top of transfer case)
W h t

(under right end of i/p)
1-2 shift sol
1-2 shift sol ctrl
2-3 shift sol
2-3 shift sol ctrl
3-2 shift sol
3-2 shift sol ctrl
A14
A15
Battery feed
Brake sig
C10
C13
C14
C215
C218
Data link connector (below left side of i/p)
Diagnostic test
E10
E13
E15
E16
Ecm-ign fuse 10a
Ect sig
Electronic 4-speed automatic overdrive transmission
Engine coolant temperature (ect) sensor (top front of engine)
F10
F12
F13
F14
F15 f15
Fuse block
G110 (left top front of engine)
Hot at all times
Hot in run, bulb
Hot in start or run
Ignition feed
Pnk
Powertrain control module (pcm)
Pressure control hi
Pressure control lo
Pressure control solenoid
Range mode selector
Range signal "a"
Range signal "b"
Range signal "c"
Red
Sensor ground
Serial data
Speed sensor (left rear side of transmission)
System ground
Tcc
Tcc sol
Tcc/brake switch (top of brake pedal)
Test or start
Throttle position sensor (right side of tbi)
Tp reference
Tp signal
Trans fluid temp (tft) sensor
Trans fluid temp sig
Trans fuse 10a
Trans output speed
Vehicle speed sensor buffer (under right end of i/p)
Vss sig

(under right end of i/p)
12v battery
12v ignition
5v sensor ref
A12
B10
B11
C10
C11
C13
D15
D16
Data link connector (below left side of i/p)
Dlc
Ecm-ign fuse 10a
Electronic 4-speed automatic overdrive transmission
Eng coolant temp
Engine coolant temperature (ect) sensor (top front of engine)
Force motor hi
Force motor lo
Fuse block
G110 (left top front of engine)
G125 (top front center of engine)
Hot at all times
Hot in start or run
Input speed hi
Input speed lo
Map sensor
Map sensor gnd
Pnk
Powertrain control module (pcm)
Press sw manifold a
Press sw manifold b
Press sw manifold c
Pressure control solenoid
Range mode selector
Red
Serial data
Shift a sol
Shift b sol
Solenoid a driver
Solenoid b driver
Speed sensor (left rear side of transmission)
System ground
Tan
Tcc driver
Tcc sol
Tcc/brake sig
Tcc/brake switch (top of brake pedal)
Throttle position sensor (right side of tbi)
Tp sensor
Tp sensor ground
Trans fluid temp (tft) sensor
Trans fuse 10a
Transmission input speed sensor (left side of transmission)
Transmission temp
Vehicle speed sensor buffer (under right end of i/p)
Vin n & z
Vin z
Vss sensor buffer

4wd fuse 25a
4wd indicator lamp
C215a
C216a
Convenience center (under left side of i/p)
Front axle actuator solenoid (right side of front drive axle)
Front axle solenoid switch (right rear side of front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Red
Rwal diode module (under left side of i/p)
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case relay (right rear of eng compt, near battery junction block)
Transfer case switch (left top of transfer case)
Transfer case syncronizer
W h t

(right rear side of
(under right end of i/p)
4 wheel drive input (not used)
4 wheel drive low signal
4wd fuse 25a
4wd indicator lamp
C215
C215a
C216a
Convenience center (under left side of i/p)
Ehcu module (near master cylinder)
Front axle
Front axle actuator solenoid (right side of front drive axle)
Front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Pickup
Powertrain control module
Rwal diode module (under left side of i/p)
Solenoid switch
Suburban, utility
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case switch (left top of transfer case)
W h t

3-2 shift sol
4 wheel drive indicator
4wd ind input
5v return b
5v sensor ref
5v system return a
A14
A15
Battery
C11
C12
C13
Data link connector (under left side of i/p)
Dlc input
E10
E13
E15
E16
Ecm-ign fuse 10a
Ect sensor
Electronic 4-speed automatic overdrive transmission
Engine coolant temp (ect) sensor (right rear front of engine)
Engine speed sensor
Engine speed sensor (center rear top of engine)
F10
F12
F13
F14
Force motor
Fuse block
G117 (top right rear of engine)
Ground
Hot at all times
Hot in run or start
Ign
Ignition
Output speed sensor
Pcm to brake sw
Pcm to trans tp sens
Pnk
Pnk n
Powertrain control module (pcm) (right side of i/p)
Range mode selector
Red
Red p
Serial data
Shift a sol
Shift b sol
Shift solenoid a
Shift solenoid b
Speed inputs
Tan
Tcc ctrl
Tcc sol
Tcc/brake switch (below left side of i/p, above brake pedal)
Throttle position (tp) sensor (top right side of engine)
Tp sensor
Trans force motor high
Trans force motor low
Trans fuse 10a
Trans range mode a
Trans range mode b
Trans range mode c
Trans- mission temp
Vehicle spd output
Vehicle speed input
Vehicle speed sensor
Vehicle speed sensor buffer (under right side of i/p)

5 volts ref
A/c system
A10
A11
A12
Air conditioning
B10
B11
B12
Battery power
C10
C11
C12
C13
C14
C15
C16
C276
C277
D10
D11
D12
D13
D14
D15
D16
Data link conn (under left side of i/p)
Dlc
Ecm-ign fuse 10a
Engine speed sensor (center rear top of engine)
Engine speed sensor in
Force motor
Force motor hi
Force motor low
Fuse block
G119 (top right front of engine)
Ground
Heavy duty electronic 4-speed automatic overdrive transmission (4l80e)
Hot at all times
Hot in run or start
Ignition
Instrument cluster (pin c)
Pnk
Press sw manifold a
Press sw manifold b
Press sw manifold c
Press switch manifold a
Press switch manifold b
Press switch manifold c
Red
Sensor ground
Serial data
Service trans output
Shift solenoid a
Shift solenoid a output
Shift solenoid b
Shift solenoid b output
Speed inputs
System ground
Tan
Tcc solenoid
Tcc/brake signal
Tcc/stoplamp switch (below left side of i/p, above brake pedal)
Throttle position (tp) sensor (right side of throttle body)
Tp sensor input
Trans fuse 10a
Trans speed input
Trans temp input
Trans temp sensor
Transmission control module (tcm) (right side of i/p)
Transmission input speed sensor (left front side of transmission)
Transmission speed sensor left front side of transmission)
Vehicle spd output
Vehicle speed input
Vehicle speed sensor buffer (under right side of i/p)

4wd fuse 25a
4wd indicator lamp
C215a
C216a
Convenience center (under left side of i/p)
Front axle actuator solenoid (right side of front drive axle)
Front axle solenoid switch (right rear side of front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Red
Rwal diode module (under left side of i/p)
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case relay (right rear of eng compt, near battery junction block)
Transfer case switch (left top of transfer case)
Transfer case syncronizer
W h t

(right rear side of
(under right end of i/p)
4 wheel drive input (not used)
4 wheel drive low signal
4wd fuse 25a
4wd indicator lamp
C215
C215a
C216a
Convenience center (under left side of i/p)
Ehcu module (near master cylinder)
Front axle
Front axle actuator solenoid (right side of front drive axle)
Front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Pickup
Powertrain control module
Rwal diode module (under left side of i/p)
Solenoid switch
Suburban, utility
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case switch (left top of transfer case)
W h t

5 volts ref
A/c system
A10
A11
A12
Air conditioning
B10
B11
B12
Battery power
C10
C11
C12
C13
C14
C15
C16
C276
C277
D10
D11
D12
D13
D14
D15
D16
Data link conn (under left side of i/p)
Dlc
Ecm-ign fuse 10a
Engine speed sensor (center rear top of engine)
Engine speed sensor in
Force motor
Force motor hi
Force motor low
Fuse block
G119 (top right front of engine)
Ground
Heavy duty electronic 4-speed automatic overdrive transmission (4l80e)
Hot at all times
Hot in run or start
Ignition
Instrument cluster (pin c)
Pnk
Press sw manifold a
Press sw manifold b
Press sw manifold c
Press switch manifold a
Press switch manifold b
Press switch manifold c
Red
Sensor ground
Serial data
Service trans output
Shift solenoid a
Shift solenoid a output
Shift solenoid b
Shift solenoid b output
Speed inputs
System ground
Tan
Tcc solenoid
Tcc/brake signal
Tcc/stoplamp switch (below left side of i/p, above brake pedal)
Throttle position (tp) sensor (right side of throttle body)
Tp sensor input
Trans fuse 10a
Trans speed input
Trans temp input
Trans temp sensor
Transmission control module (tcm) (right side of i/p)
Transmission input speed sensor (left front side of transmission)
Transmission speed sensor left front side of transmission)
Vehicle spd output
Vehicle speed input
Vehicle speed sensor buffer (under right side of i/p)

4wd fuse 25a
4wd indicator lamp
C215a
C216a
Convenience center (under left side of i/p)
Front axle actuator solenoid (right side of front drive axle)
Front axle solenoid switch (right rear side of front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Red
Rwal diode module (under left side of i/p)
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case relay (right rear of eng compt, near battery junction block)
Transfer case switch (left top of transfer case)
Transfer case syncronizer
W h t

(right rear side of
(under right end of i/p)
4 wheel drive input (not used)
4 wheel drive low signal
4wd fuse 25a
4wd indicator lamp
C215
C215a
C216a
Convenience center (under left side of i/p)
Ehcu module (near master cylinder)
Front axle
Front axle actuator solenoid (right side of front drive axle)
Front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Pickup
Powertrain control module
Rwal diode module (under left side of i/p)
Solenoid switch
Suburban, utility
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case switch (left top of transfer case)
W h t

(under right end of i/p)
12v battery
12v ignition
5v sensor ref
A12
B10
B11
C10
C11
C13
D15
D16
Data link connector (below left side of i/p)
Dlc
Ecm-ign fuse 10a
Electronic 4-speed automatic overdrive transmission
Eng coolant temp
Engine coolant temperature (ect) sensor (top front of engine)
Force motor hi
Force motor lo
Fuse block
G110 (left top front of engine)
G125 (top front center of engine)
Hot at all times
Hot in start or run
Input speed hi
Input speed lo
Map sensor
Map sensor gnd
Pnk
Powertrain control module (pcm)
Press sw manifold a
Press sw manifold b
Press sw manifold c
Pressure control solenoid
Range mode selector
Red
Serial data
Shift a sol
Shift b sol
Solenoid a driver
Solenoid b driver
Speed sensor (left rear side of transmission)
System ground
Tan
Tcc driver
Tcc sol
Tcc/brake sig
Tcc/brake switch (top of brake pedal)
Throttle position sensor (right side of tbi)
Tp sensor
Tp sensor ground
Trans fluid temp (tft) sensor
Trans fuse 10a
Transmission input speed sensor (left side of transmission)
Transmission temp
Vehicle speed sensor buffer (under right end of i/p)
Vin n & z
Vin z
Vss sensor buffer

4wd fuse 25a
4wd indicator lamp
C215a
C216a
Convenience center (under left side of i/p)
Front axle actuator solenoid (right side of front drive axle)
Front axle solenoid switch (right rear side of front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Red
Rwal diode module (under left side of i/p)
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case relay (right rear of eng compt, near battery junction block)
Transfer case switch (left top of transfer case)
Transfer case syncronizer
W h t

(right rear side of
(under right end of i/p)
4 wheel drive input (not used)
4 wheel drive low signal
4wd fuse 25a
4wd indicator lamp
C215
C215a
C216a
Convenience center (under left side of i/p)
Ehcu module (near master cylinder)
Front axle
Front axle actuator solenoid (right side of front drive axle)
Front drive axle)
G206 (center of i/p, at dlc)
Hot in run
I/p fuse block
In-line diode
Instrument cluster
Panel dimmer switch assembly
Panel lps fuse 5a
Pickup
Powertrain control module
Rwal diode module (under left side of i/p)
Solenoid switch
Suburban, utility
Transfer case mode selector illumination lamp (at transfer case selector lever)
Transfer case switch (left top of transfer case)
W h t

Frt wiper fuse 25a
Fuse block
G106 (behind left head lamp)
G117 (rear of right cylinder head)
High speed
Hot in accy or run
Low speed
Mechanical arm
Off
Park switch
Pnk
Washer pump motor
Washer switch
Windshield wiper motor module
Wiper/ washer switch

Control area
Delay
Delay/ speed/ wash control
Frt wiper fuse 25a
Fuse block
G106 (behind left headlamp)
G117 (rear of right cylinder head)
Hot in accy or run
Ign
Low
Max
Min
Mist
Off
Park switch
Pnk
Pulse switch
Washer motor
Washer switch
Windshield wiper motor module (center rear of engine compt)
Wiper/ washer switch

All Wiring Diagrams for GMC Cab & Chassis C1993 3500

DEFOGGERS

Defogger Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for Defogger Wiring Diagram for GMC Cab & Chassis C1993 3500:

HORN

Horn Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for Horn Wiring Diagram for GMC Cab & Chassis C1993 3500:

POWER DOOR LOCKS

Power Door Lock Wiring Diagram, 2 Door for GMC Cab & Chassis C1993 3500

List of elements for Power Door Lock Wiring Diagram, 2 Door for GMC Cab & Chassis C1993 3500:

POWER MIRRORS

Power Mirror Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for Power Mirror Wiring Diagram for GMC Cab & Chassis C1993 3500:

POWER SEATS

Power Seat Wiring Diagrams for GMC Cab & Chassis C1993 3500

List of elements for Power Seat Wiring Diagrams for GMC Cab & Chassis C1993 3500:

POWER WINDOWS

Power Window Wiring Diagram, 2 Door for GMC Cab & Chassis C1993 3500

List of elements for Power Window Wiring Diagram, 2 Door for GMC Cab & Chassis C1993 3500:

RADIO

2-Speaker System Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for 2-Speaker System Wiring Diagram for GMC Cab & Chassis C1993 3500:

AM/FM Stereo for GMC Cab & Chassis C1993 3500

List of elements for AM/FM Stereo for GMC Cab & Chassis C1993 3500:

AM/FM Stereo, with Cassette & Amplifier for GMC Cab & Chassis C1993 3500

List of elements for AM/FM Stereo, with Cassette & Amplifier for GMC Cab & Chassis C1993 3500:

STARTING/CHARGING

Charging Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for Charging Wiring Diagram for GMC Cab & Chassis C1993 3500:

Starting Wiring Diagram for GMC Cab & Chassis C1993 3500

List of elements for Starting Wiring Diagram for GMC Cab & Chassis C1993 3500:

TRANSMISSION

4.3L

4.3L (VIN Z), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500

List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500:

4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500

List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

5.0L

5.0L (VIN H), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500

List of elements for 5.0L (VIN H), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

5.7L

5.7L (VIN K), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500

List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500:

5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500

List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

6.2L

6.2L (VIN C), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500

List of elements for 6.2L (VIN C), Transmission Wiring Diagram, 4L60-E for GMC Cab & Chassis C1993 3500:

6.2L (VIN J), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500

List of elements for 6.2L (VIN J), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

6.5L

6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500

List of elements for 6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

7.4L

7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500

List of elements for 7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500:

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC Cab & Chassis C1993 3500: