TRANSMISSION – GMC Forward Control P3500 1994 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

4.3L

4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994

List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994:

• (behind left side of shipping panel) data link connector
• 1-2 shift sol
• 1-2 shift sol ctrl
• 2-3 shift sol
• 2-3 shift sol ctrl
• A14
• A15
• All times
• Battery
• Brake signal
• C11
• C12
• C13
• C250
• C251
• Diagnostic test
• E11
• E13
• E15
• E16
• Ecm bat fuse 10a
• Ecm-crnk fuse 10a
• Ect signal
• Electronic 4-speed automatic overdrive transmission
• Engine coolant temp sens (top right side of eng)
• F10
• F12
• F13
• F14
• F15
• Fuse block
• G125 (front of engine)
• Ground
• Hot at
• Hot in run, bulb test or start
• Ignition
• Pcs hi
• Pcs lo
• Pnk
• Powertrain control module (left side of shipping panel)
• Pressure control solenoid
• Range mode selector
• Range signal a
• Range signal b
• Range signal c
• Red
• Sensor ground
• Serial data
• Tcc sol
• Tcc sol ctrl
• Tcc/brake switch (on brake pedal support arm)
• Tft signal
• Throttle position sensor (top right side of eng)
• Tp reference
• Tp signal
• Trans fuse 10a
• Trans output speed
• Trans speed sens input
• Trans- mission input speed sensor (left frnt of trans)
• Trans- mission temp
• Vehicle speed sensor (rear of transmission)
• Vehicle speed sensor buffer (behind right side of i/p)
• Vss signal

5.7L

5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994

List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994:

• (behind left side of shipping panel) data link connector
• 1-2 shift sol
• 1-2 shift sol ctrl
• 2-3 shift sol
• 2-3 shift sol ctrl
• A14
• A15
• All times
• Battery
• Brake signal
• C11
• C12
• C13
• C250
• C251
• Diagnostic test
• E11
• E13
• E15
• E16
• Ecm bat fuse 10a
• Ecm-crnk fuse 10a
• Ect signal
• Electronic 4-speed automatic overdrive transmission
• Engine coolant temp sens (top right side of eng)
• F10
• F12
• F13
• F14
• F15
• Fuse block
• G125 (front of engine)
• Ground
• Hot at
• Hot in run, bulb test or start
• Ignition
• Pcs hi
• Pcs lo
• Pnk
• Powertrain control module (left side of shipping panel)
• Pressure control solenoid
• Range mode selector
• Range signal a
• Range signal b
• Range signal c
• Red
• Sensor ground
• Serial data
• Tcc sol
• Tcc sol ctrl
• Tcc/brake switch (on brake pedal support arm)
• Tft signal
• Throttle position sensor (top right side of eng)
• Tp reference
• Tp signal
• Trans fuse 10a
• Trans output speed
• Trans speed sens input
• Trans- mission input speed sensor (left frnt of trans)
• Trans- mission temp
• Vehicle speed sensor (rear of transmission)
• Vehicle speed sensor buffer (behind right side of i/p)
• Vss signal

6.5L

6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994

List of elements for 6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994:

• (tft)
• (under right end of i/p)
• 1-2 shift sol
• 1-2 shift sol ctrl
• 2-3 shift sol
• 2-3 shift sol ctrl
• 4 wheel drive low sig
• A12
• Accelerator pedal position (app) module (top of acce- lerator bracket)
• Alt fuse 20a
• App #1
• App #1 sensor 5v ref
• App #1 sensor ground
• App #1 sensor sig
• App #2
• App #2 sensor 5v ref
• App #2 sensor sig
• App #3
• App #3 sensor 5v ref
• App #3 sensor ground
• App #3 sensor sig
• B10
• Battery feed
• Bracket)
• C11
• C12
• C13
• C14
• C15
• D11
• Data link connector (below left side of i/p)
• Diagnostic request
• E10
• E11
• E13
• Ecm-bat fuse 10a
• Ecm-crank fuse 10a
• Ect sig
• Electronic 4-speed automatic overdrive transmission
• Engine coolant temperature (ect) sensor (right side of engine)
• Fuse block
• G117 (right rear of engine)
• Hot at all times
• Hot in run, bulb
• Hot in start or run
• Ignition feed
• Pnk
• Powertrain control module
• Pressure control solenoid
• Pressure ctrl sol hi
• Pressure ctrl sol lo
• Range mode selector
• Range signal "a"
• Range signal "b"
• Range signal "c"
• Red
• Sensor
• Sensor ground
• Serial data
• Speed sensor (left rear side of transmission)
• System ground
• Tan
• Tan d
• Tcc sol
• Tcc sol ctrl
• Tcc/ brake switch (on brake pedal support
• Tcc/brake sw
• Test or start
• Trans fluid temp
• Trans fluid temp sig
• Trans fuse 10a
• Trans output spd sig
• Transfer case switch
• Vehicle speed sensor buffer module (under right end of i/p)
• Vehicle speed sig

6.5L (VIN Y), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994

List of elements for 6.5L (VIN Y), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994:

• 1-2 shift sol
• 1-2 shift sol ctrl
• 2-3 shift sol
• 2-3 shift sol ctrl
• 5 volts ref
• A10
• A11
• A12
• Alt fuse 20a
• B10
• B11
• B12
• Baro press sens
• Barometric pressure (1993 only) (left side of shipping panel)
• Battery feed
• Brake signal
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C205
• C276
• C277
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Data link conn (under left side of i/p)
• Diagnostic test
• Ecm bat fuse 10a
• Ecm-crnk fuse 10a
• Electronic 4-speed automatic overdrive transmission
• Engine speed sensor (center rear top of engine)
• Engine speed signal
• Fuse block
• G125
• Hot at all times
• Hot in run bulb test or start
• Ignition
• Input speed sens hi
• Input speed sens lo
• Instrument cluster
• Pcs hi
• Pcs lo
• Pnk
• Pnk d
• Pressure control solenoid
• Range mode selector
• Range signal a
• Range signal b
• Range signal c
• Red
• Red f
• Sensor
• Sensor ground
• Serial data
• Service trans output
• Service transmission indicator
• System ground
• Tcc control
• Tcc sol
• Tcc/brake switch (below left side of i/p, above brake pedal)
• Throttle position sensor (right side of throttle body)
• Tp sensor input
• Trans fluid temp sig
• Trans fuse 10a
• Trans- mission temp
• Transmission control module (tcm) (right side of i/p)
• Transmission input speed sensor (left front side of transmission)
• Vehicle spd output
• Vehicle speed input
• Vehicle speed sensor (rear of transmission)
• Vehicle speed sensor buffer (under right side of i/p)
• Vss inputs

7.4L

7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994

List of elements for 7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC Forward Control P3500 1994:

• (behind left side of shipping panel) data link connector
• 1-2 shift sol
• 1-2 shift sol ctrl
• 2-3 shift sol
• 2-3 shift sol ctrl
• A14
• A15
• All times
• Battery
• Brake signal
• C11
• C12
• C13
• C250
• C251
• Diagnostic test
• E11
• E13
• E15
• E16
• Ecm bat fuse 10a
• Ecm-crnk fuse 10a
• Ect signal
• Electronic 4-speed automatic overdrive transmission
• Engine coolant temp sens (top right side of eng)
• F10
• F12
• F13
• F14
• F15
• Fuse block
• G125 (front of engine)
• Ground
• Hot at
• Hot in run, bulb test or start
• Ignition
• Pcs hi
• Pcs lo
• Pnk
• Powertrain control module (left side of shipping panel)
• Pressure control solenoid
• Range mode selector
• Range signal a
• Range signal b
• Range signal c
• Red
• Sensor ground
• Serial data
• Tcc sol
• Tcc sol ctrl
• Tcc/brake switch (on brake pedal support arm)
• Tft signal
• Throttle position sensor (top right side of eng)
• Tp reference
• Tp signal
• Trans fuse 10a
• Trans output speed
• Trans speed sens input
• Trans- mission input speed sensor (left frnt of trans)
• Trans- mission temp
• Vehicle speed sensor (rear of transmission)
• Vehicle speed sensor buffer (behind right side of i/p)
• Vss signal