All Wiring Diagrams for GMC CHD 1993 3500 model

DEFOGGERS

Defogger Wiring Diagram for GMC CHD 1993 3500

List of elements for Defogger Wiring Diagram for GMC CHD 1993 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

HORN

Horn Wiring Diagram for GMC CHD 1993 3500

List of elements for Horn Wiring Diagram for GMC CHD 1993 3500:

• (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

POWER DOOR LOCKS

Power Door Lock Wiring Diagram, 2 Door for GMC CHD 1993 3500

List of elements for Power Door Lock Wiring Diagram, 2 Door for GMC CHD 1993 3500:

• (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

Power Door Lock Wiring Diagram, 4 Door for GMC CHD 1993 3500

List of elements for Power Door Lock Wiring Diagram, 4 Door for GMC CHD 1993 3500:

• Acc/batt circuit beaker 30a
• Convenience center (behind left side of i/p)
• Door lock relay (under i/p, right side of brake pedal bracket)
• Fuse block (behind left side of i/p)
• G202 (left side of i/p)
• Hot at all times
• Left front door lock motor
• Left front door lock switch
• Left rear door lock motor
• Lock
• Rear door lock motor (suburban only)
• Relay
• Right front door lock motor
• Right front door lock switch
• Right rear door contactor
• Right rear door lock motor
• Tan
• Unlock
• Unlock relay

POWER MIRRORS

Power Mirror Wiring Diagram for GMC CHD 1993 3500

List of elements for Power Mirror Wiring Diagram for GMC CHD 1993 3500:

• 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

POWER SEATS

Power Seat Wiring Diagrams for GMC CHD 1993 3500

List of elements for Power Seat Wiring Diagrams for GMC CHD 1993 3500:

• 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

POWER WINDOWS

Power Window Wiring Diagram, 2 Door for GMC CHD 1993 3500

List of elements for Power Window Wiring Diagram, 2 Door for GMC CHD 1993 3500:

• (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

Power Window Wiring Diagram, 4 Door for GMC CHD 1993 3500

List of elements for Power Window Wiring Diagram, 4 Door for GMC CHD 1993 3500:

• (at dlc connector)
• (under left side of dash)
• Acc-ign circuit breaker (exc 1994) 30a
• C506
• C507
• Convenience center
• Fuse block
• G206
• Gauges fuse 20a
• Hot in acc or run
• Hot in run or start
• Left front power window motor
• Left front window
• Left rear power window motor
• Left rear window
• Left rear window switch
• Master window switch
• Pnk
• Pwr-wdo circuit breaker (1994) 30a
• Right front power window motor
• Right front window
• Right front window switch
• Right rear power window motor
• Right rear window
• Right rear window switch
• Switch illumination lamp
• Tan

RADIO

2-Speaker System Wiring Diagram for GMC CHD 1993 3500

List of elements for 2-Speaker System Wiring Diagram for GMC CHD 1993 3500:

• (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

AM/FM Stereo for GMC CHD 1993 3500

List of elements for AM/FM Stereo for GMC CHD 1993 3500:

• (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

AM/FM Stereo, with Cassette & Amplifier for GMC CHD 1993 3500

List of elements for AM/FM Stereo, with Cassette & Amplifier for GMC CHD 1993 3500:

• (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

STARTING/CHARGING

Charging Wiring Diagram for GMC CHD 1993 3500

List of elements for Charging Wiring Diagram for GMC CHD 1993 3500:

• (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

Starting Wiring Diagram for GMC CHD 1993 3500

List of elements for Starting Wiring Diagram for GMC CHD 1993 3500:

• 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

TRANSMISSION

4.3L

4.3L (VIN Z), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500

List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500:

• (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

4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500

List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500:

• (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

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• 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

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• (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

5.0L

5.0L (VIN H), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500

List of elements for 5.0L (VIN H), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500:

• (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

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• 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

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• (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

5.7L

5.7L (VIN K), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500

List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500:

• (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

5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500

List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500:

• (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

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• 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

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• (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

6.2L

6.2L (VIN C), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500

List of elements for 6.2L (VIN C), Transmission Wiring Diagram, 4L60-E for GMC CHD 1993 3500:

• 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)

6.2L (VIN J), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500

List of elements for 6.2L (VIN J), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500:

• 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)

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• 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

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• (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

6.5L

6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500

List of elements for 6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500:

• 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)

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• 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

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• (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

7.4L

7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500

List of elements for 7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC CHD 1993 3500:

• (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

Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Except Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• 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

Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500

List of elements for Transfer Case Wiring Diagram, Heavy Duty 4 Speed A/T for GMC CHD 1993 3500:

• (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

WIPER/WASHER

2-Speed Wiper/Washer Wiring Diagram for GMC CHD 1993 3500

List of elements for 2-Speed Wiper/Washer Wiring Diagram for GMC CHD 1993 3500:

• 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

Interval Wiper/Washer Wiring Diagram for GMC CHD 1993 3500

List of elements for Interval Wiper/Washer Wiring Diagram for GMC CHD 1993 3500:

• 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