TRANSMISSION – Chevrolet Silverado 2500 HD 2001 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2500 HD 2001

List of elements for Transfer Case Wiring Diagram, 2-Speed Automatic for Chevrolet Silverado 2500 HD 2001:

• (left front of engine compt) powertrain control module
• (on left front body mount) g110
• (under left side of dash) data link connector
• +8v ref
• +8v ref out
• 2-hi ind
• 4-hi ind
• 4-lo ind
• 4wd fuse 15a
• 4wd ind lamp
• 4wd sw (lo)
• 4wd sw sig
• 4wd whl lock
• Atc fuse 20a
• Auto
• Auto 4wd
• Auxiliary battery relay
• Awd ind
• Body relay block (under c1
• Brake control
• Channel-a
• Channel-b
• Channel-c
• Channel-p
• Class ii data
• Ctrl
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• Encoder logic
• Encoder motor
• Encoder rtn
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front axle actuator
• Front prop- shaft speed sensor
• Ft axle ctrl
• Ft shaft rtn
• Ft shaft sig
• G110 (on left front body mount)
• G203 (upper left kick panel)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Ign 3 (run)
• Ign1 fuse 10a
• Illumination lamp (2)
• Instrument panel cluster
• Interior lights system
• Left i/p fuse block (lower left side of dash)
• Left side of dash)
• Lock sol out
• Logic
• Module gnd
• Motor (ccw)
• Motor (cw)
• Nca
• Neutral ind
• Pnk
• Rear prop- shaft speed sensor
• Red
• Rr shaft rtn
• Rr shaft sig
• Shift motor
• Solid state
• Splice pack sp203
• Splice pack sp205 (left side of dash)
• Tan
• Transfer case shift control module (behind headlamp switch)
• Transfer case shift control switch
• Underhood fuse block (left side of engine compt, near battery)

Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2500 HD 2001

List of elements for Transfer Case Wiring Diagram, 2-Speed Manual for Chevrolet Silverado 2500 HD 2001:

• (w/ allison transmission)
• 4wd fuse 15a
• 4wd indicator lamp
• A4 c1
• Auxiliary battery relay
• Body relay block (under left side of dash)
• C9 c1
• D2 c1
• D8 c1
• Data link connector (under left side of dash)
• Dsl(ecm) gas (pcm)
• Electronic brake control module (on left side of inner frame)
• Front axle actuator
• G110 (on left front body mount)
• Hot in run
• Hot in run & start
• Ign1 fuse 10a
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Logic
• Pnk
• Powertrain control module (gas engines) or engine control module (diesel) (left front of engine compt)
• S165 (in engine harness)
• Splice pack sp205 (left side of dash)
• Transfer case shift switch (left front of transfer case)
• Transmission control module (w/ allison trans) (left front of engine compt)
• Underhood fuse block (left side of engine compt, near battery)

6.0L VIN U

6.0L VIN U, A/T Wiring Diagram, 4L80-E for Chevrolet Silverado 2500 HD 2001

List of elements for 6.0L VIN U, A/T Wiring Diagram, 4L80-E for Chevrolet Silverado 2500 HD 2001:

• (in engine harness)
• (not used) a
• (right rear of engine block) g103
• +5v
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 4wd circuit (transfer case & front axle switch)
• 4wd low
• A/t fluid pressure manual valve position switch
• A/t ss
• A12
• Abs system
• Automatic transmission (4l80-e)
• Automatic transmission input shaft speed sensor (4wd) (on transmission)
• Body control module (lower left side of dash, below steering column)
• Body relay block (under c1
• Brake fuse 10a
• Brk sw
• C11
• Cls 2 data
• D3, d2
• D4, d2
• Data link connector (under left side of dash)
• Ecm1 fuse 10a
• Ecmb fuse 20a
• Ect sig
• Engine coolant temperature sensor (front of left cylinder head)
• Except light duty w/ delphi ho2s
• Fluid temp sensor
• Frt axle sw
• G103 (right rear of engine block)
• Gnd
• Hot at all times
• Hot in run
• Hot in run & start
• Hot in run, bulb test & start
• Ign
• Ign0 fuse 10a
• Ign1 fuse 10a
• Instrument cluster
• Instrument panel cluster (ipc)
• Left end of dash)
• Left i/p fuse block (lower left side of dash)
• Light duty w/ delphi ho2s
• Lo ref
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Pc sol hi
• Pc sol lo
• Pnk
• Powertrain control module (left front of engine compt)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Range b
• Range c
• Red
• Red a
• Rev, lo
• S103
• S113
• Sens gnd
• Splice pack sp205 (left side of dash)
• Stoplight switch (top of brake pedal bracket)
• Tcc pwm
• Tcc pwm solenoid
• Tft sens sig
• Throttle position sensor (on throttle body assy)
• Tp sig
• Trans rng a
• Underhood fuse block (left side of engine c2 compt, near battery)
• Underhood fuse block (left side of engine compt, near battery)
• Vehicle speed sensor (2wd: left rear of transmission) (4wd: left side of transfer case)
• Vss adapter (4wd) (left side of trans)
• Vss hi
• Vss lo
• W/ traction assist
• W/o traction assist