TRANSMISSION – GMC Cab & Chassis Sierra 3500 2004 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

Transfer Case Wiring Diagram, 2-Speed Automatic for GMC Cab & Chassis Sierra 3500 2004

List of elements for Transfer Case Wiring Diagram, 2-Speed Automatic for GMC Cab & Chassis Sierra 3500 2004:

• (behind right side of dash, near right "a" pillar)
• (left front of engine compt) powertrain control module
• (on left front body mount) g110
• +5v ref
• 2-hi ind
• 2wd
• 4 hi
• 4 lo
• 4-hi ind
• 4-lo ind
• 4wd fuse 15a
• 4wd indicator lamp
• 4wd lo sig
• 4wd sw sig
• Awd
• Awd ind
• Axle ctrl
• Axle sw sig
• Battery
• Brake control
• Class ii data
• Ctrl
• Data link connector (under left side of dash, below steering column)
• Encoder
• Encoder low
• Encoder sig
• Except seo
• Front axle actuator
• Front propshaft speed sensor
• Ft shaft hi
• Ft shaft lo
• G200
• G203 (behind left side of dash, near left "a" pillar)
• Gnd
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• I/p relay block (near c1
• Ign e fuse 10a
• Illumination
• Instrument panel cluster
• Interior lights system
• Left i/p fuse block (lower left side of dash)
• Left kick panel)
• Lock sol ctrl
• Logic
• Motor ctrl a
• Motor ctrl b
• Nca
• Neutral ind
• Pnk
• Rear propshaft speed sensor
• Red
• Rr shaft hi
• Rr shaft lo
• Seo
• Seo ign fuse 10a
• Shift motor
• Splice pack sp205 (in i/p harn)
• Tan
• Transfer case encoder motor
• Transfer case shift control module (left side of i/p area, behind knee bolster, above parking brake assy)
• Transfer case shift control switch
• Trec fuse 30a
• Underhood fuse block (left side of engine compt)

Transfer Case Wiring Diagram, 2-Speed Manual for GMC Cab & Chassis Sierra 3500 2004

List of elements for Transfer Case Wiring Diagram, 2-Speed Manual for GMC Cab & Chassis Sierra 3500 2004:

• (in engine harness) s165
• (w/ allison transmission)
• 4wd fuse 15a
• 4wd indicator lamp
• Data link connector (under left side of dash below steering column)
• Dsl(ecm) gas (pcm)
• E2 c1
• Electronic brake control module (on left side of inner frame)
• Except seo
• Front axle actuator
• G110 (on left front body mount)
• Hot in run
• Hot in run or start
• I/p fuse block (lower left side of dash)
• Ign e fuse 10a
• Instrument panel cluster
• Logic
• Pnk
• Powertrain control module (gas engines) or engine control module (diesel) (left front of engine compt)
• Seo
• Seo ign fuse 10a
• Splice pack sp205 (in i/p harn)
• Transfer case shift control switch (on top of transfer case)
• Transmission control module (w/ allison trans) (left front of engine compt)
• Underhood fuse block (left side of engine compt)

Transfer Case Wiring Diagram, Selectable for GMC Cab & Chassis Sierra 3500 2004

List of elements for Transfer Case Wiring Diagram, Selectable for GMC Cab & Chassis Sierra 3500 2004:

• (left front of engine compt) powertrain control module
• (on left front body mount) g110
• +5v ref
• 4 lo
• 4-hi ind
• 4-lo ind
• 4wd fuse 15a
• 4wd indicator lamp
• 4wd lo sig
• 4wd sw sig
• Awd
• Battery
• Channel a
• Channel b
• Channel c
• Channel p
• Class ii data
• Data link connector (below left side of dash)
• Encoder low
• Except seo
• G200 (near right "a" pillar)
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• Ign e fuse 10a
• Illumination
• Instrument panel cluster
• Interior lights system
• Left i/p fuse block (behind lower left side of dash)
• Logic
• Motor ctrl a
• Motor ctrl b
• Nca
• Neutral ind
• Pnk
• Red
• Right i/p fuse block (lower c4
• Right side of dash)
• Seo
• Seo ign fuse 10a
• Shift motor
• Splice pack sp205 (behind left i/p fuse block)
• Tcs
• Transfer case encoder motor
• Transfer case shift control module (behind headlamp switch)
• Transfer case shift control switch
• Trec fuse 30a
• Underhood fuse block (left side of engine compt, near battery)

6.6L VIN 2

6.6L VIN 2, A/T Wiring Diagram for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, A/T Wiring Diagram for GMC Cab & Chassis Sierra 3500 2004:

• (in engine harness)
• (left front of engine compt) engine control module
• (right side of engine block) g102
• 12 volt ref
• 4wd circuit (transfer case controls)
• 4wd low sig
• Allison transmission
• B11
• B12
• Battery
• Body control module (below steering column)
• Brake fuse 10a
• C1 vss adapter (4wd) (left side of trans)
• C12 c1
• C12 c2
• Can data hi
• Can data lo
• Class 2 data
• Class 2 serial data
• Computer data lines system
• D5 c1
• Data link connector (below steering column)
• E11
• E4 c1
• Engine controls system
• Except seo
• F10
• F7 c1
• G203 (behind left side of dash)
• Ground
• Hot at all times
• Hot in run
• Hot in run acc & start
• I/p fuse block (lower left side of dash)
• I/p relay block (near left kick panel)
• Ign 0 fuse 10a
• Ignition
• Input speed sensor (in transmission)
• Instrument panel cluster (ipc)
• Ipc/dic fuse 10a
• Iss high
• Iss low
• Low ref
• Main line pres
• Malfunction indicator lamp
• Mil control
• Mil signal
• On/off sol a
• On/off sol b
• On/off sol c
• On/off solenoids
• P/n
• Park/neutral position switch (left side of transmission)
• Park/neutral sig
• Pcm b fuse 20a
• Pcs a high
• Pcs a low
• Pcs b high
• Pcs b low
• Pnk
• Pnk s125
• Pressure switch manifold
• Pto status
• Red
• Red c
• Rev
• Reverse sig
• S103
• S164
• S217
• Seo
• Seo b1 fuse 15a
• Sig hi-front
• Signal high - front
• Solenoid g
• Splice pack sp205 (in i/p harness)
• Stoplamp switch (on brake pedal bracket)
• Tan d
• Tcc brake sw
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tfp signal c
• Tfp signal d
• Tfp signal e
• Tft sensor
• Tft signal
• Tow/haul switch (if equipped)
• Tr signal a
• Tr signal b
• Tr signal c
• Tr signal p
• Trans id
• Trans mil request
• Transmission control module (left front of engine compt)
• Trim solenoids
• Tss return
• Tss signal
• Turbine speed sensor (in transmission)
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (2wd: left rear of transmission) (4wd: left side of transfer case)
• Vss high
• Vss low