COMPUTER DATA LINES – GMC Cab & Chassis Sierra 3500 HD 2008 – SYSTEM WIRING DIAGRAMS

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram (1 of 2) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for Computer Data Lines Wiring Diagram (1 of 2) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (in body harness, below passenger seat) splice pack jx339
• (in i/p extension harness, behind left side of dash) splice pack jx223
• (lower left side of dash) left i/p junction block
• (not used)
• (upfitter provisional)
• 2 or more
• 3b1
• Audio amplifier (if equipped) (under rear of center console)
• Body control module (bcm) (lower left side of dash)
• Chime module (center of dash, behind radio)
• Data link connector (dlc) (lower left side of dash)
• Digital radio receiver (behind right end of dash)
• Digital radio receiver (if equipped) (behind right end of dash)
• Driver door lock/window switch (if equipped)
• G200 (on right front corner of hvac module)
• G201 (upper left corner of dash)
• Ground distribution system
• Hot at all times
• Hvac control module
• I/p fuse block (left side of dash)
• Inflatable restraint front passenger presence system (pps) module (if equipped) (under front passenger seat)
• Inflatable restraint sensing & diagnostic module (sdm) (under driver's seat)
• Inflatable restraint vehicle rollover sensor (if equipped) (below center console)
• Instrument panel cluster (ipc)
• J200
• Left i/p junction block (lower left side of dash)
• Lo speed serial data
• Lo-speed serial data
• Low speed gmlan serial data
• Ltr fuse 53 (except 6.6l) fuse 50 (6.6l) 20a
• Memory seat module (w/ front individual non bucket seat) (under front of driver's seat)
• Of w/ onstar, digital radio & rear seat & earphone jacks radio control
• Passenger door lock/window switch (if equipped)
• Power distribution system
• Radio
• Rear object sensor control module (at rear cargo area, behind trim panel)
• Rear seat audio (rsa) control
• Rear seat audio (rsa) control (if equipped)
• Remote control door lock receiver (rcdlr) (top rear of passenger compt)
• Right i/p junction block (in right end of dash)
• Splice pack jx221 (in the i/p harness, behind left side of dash)
• Tan
• Theft deterrent control module (on right side of steering column)
• Underhood fuse block (left side of engine compt)
• Vehicle communication interface module (vcim) (behind center of dash)
• Vehicle communication interface module (vcim) (if equipped) (behind center of dash)
• W/ digital radio
• W/ digital radio, rear seat, onstar & earphone jacks radio control
• W/ luxury edition
• W/ onstar
• W/ radio provisions
• W/ rear seat & earphone jacks radio control
• W/o luxury edition
• W/o radio provisions

Computer Data Lines Wiring Diagram (2 of 2) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for Computer Data Lines Wiring Diagram (2 of 2) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (w/ trailer brake & except 4.3l, 5.3l (vin 0), 6.6l, 6.0l (vin k) & 5.3l (vin 3)) j338
• 4.3l
• 5.3l (vin 0), 6.0l (vin k) & w/ trailer brake
• 5.3l (vin 0), 6.0l (vin k) & w/o trailer brake
• 6.0l (vin y), 4.3l, 4.8l & 5.3l
• 6.2l except 6.2l & 6.6l
• 6.6l
• 6.6l 6.2l & 6.0l (vin k)
• Accessory wakeup serial data
• Body control module (bcm) (lower left side of dash)
• Data link resistor
• Electronic brake control module (ebcm) (on left side of frame assembly)
• Engine control module (ecm) (left front of engine compartment, near fan shroud)
• Except 4.3l & 6.6l
• Except 4.3l, 6.6l, 5.3l (vin 0), 6.0l (vin k) & 5.3l (vin 3)
• Except 6.6l
• Fuel system control module (fscm) (except 4.3l, 6.6l, 5.3l (vin 0), 6.0l (vin k) & 5.3l (vin 3)) (under rear of vehicle)
• Glow plug control module (gpcm) (6.6l) (top left rear of engine)
• Hb01
• Hb04
• Hb05
• Hb06
• Hb20
• Hi spd gmlan serial data +
• Hi spd gmlan serial data -
• High speed gmlan serial data bus +
• High speed gmlan serial data bus -
• J104 (in engine harness, 5 cm from engine control module connector breakout)
• J207 (w/ auto & electronic 4x4) (in instrument panel harness, in transfer case shift control module connector breakout)
• J222 (w/ pto) (in instrument panel harness)
• Left i/p junction block (lower left side of dash)
• Power take off (pto) module (outside of right front chassis frame)
• Serial data comm enable
• Tan
• Terminator
• Trailer brake controller module (tbcm) (w/ trailer brake) (20/30 series: left rear frame rail) (31 series: on left frame rail)
• Transfer case shift control module (w/ auto & electronic 4x4) (lower left side of dash)
• Transmission control module (tcm) (left front of engine compartment, near fan shroud)
• Vehicle communication interface module (vcim) (behind center of dash)
• W/ auto & electronic 4x4
• W/ hydraulic brakes
• W/ onstar
• W/ pto
• W/ trailer brake
• W/o auto & electronic 4x4
• W/o hydraulic brakes
• W/o onstar
• W/o pto
• W/o trailer brake