COMPUTER DATA LINES – Chevrolet Silverado 1500 2012 – SYSTEM WIRING DIAGRAMS

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram, Except Hybrid (1 of 3) for Chevrolet Silverado 1500 2012

List of elements for Computer Data Lines Wiring Diagram, Except Hybrid (1 of 3) for Chevrolet Silverado 1500 2012:

• (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)
• (not used) b
• (not used) e
• (not used) f
• (not used) j
• (not used) l
• (under front passenger's seat) splice pack jx339
• 2 or more
• 3b1
• A10
• A15
• Audio amplifier (if equipped) (under rear of center console)
• Body control module (bcm) (lower left side of dash)
• C (not used)
• 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
• G200 (on right front corner of hvac module)
• G201 (upper left corner of dash)
• Ground distribution system
• Heated seat control module (w/ spo heated seats)
• 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)
• Instrument panel cluster (ipc)
• J200
• Left i/p junction block (lower left side of dash)
• Low spd gmlan ser data
• Low speed gmlan serial data
• Low speed serial data
• Low speed serial data x7
• Ltr fuse 53 (except 6.6l) fuse 50 (6.6l) 20a
• Memory seat module (w/ individual front seat) (under front of driver's seat)
• Of w/ onstar, digital radio & rear seat & earphone jacks radio control
• Passenger door lock/window switch
• 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 i/p harness, behind left side of dash)
• Tan
• Theft deterrent control module (tdm) (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/ front bench seat
• W/ front seat & remote control
• W/ individual front seat
• W/ luxury edition
• W/ onstar
• W/ radio provisions
• W/ rear parking assist
• W/ rear seat & earphone jacks radio control
• W/ remote keyless entry
• W/o individual front seat
• W/o luxury edition
• W/o luxury edition & w/ odometer security provisions
• W/o radio provisions
• X201
• X202
• X212
• X301
• X303
• X305
• X331

Computer Data Lines Wiring Diagram, Except Hybrid (2 of 3) for Chevrolet Silverado 1500 2012

List of elements for Computer Data Lines Wiring Diagram, Except Hybrid (2 of 3) for Chevrolet Silverado 1500 2012:

• (4.8l, 5.3l & 6.2l) j338
• (lower left side of dash) (w/ two speed transfer case) transfer case shift control module
• 4.8l, 6.2l & 5.3l
• 8600 gvm w/ active brake control
• 8600 gvw w/o active brake control
• Can bus hi serial data
• Can bus low serial data
• Comm enable serial data
• Data link resistor (in chassis harness, on left rear chassis cross member)
• Electronic brake control module (ebcm) (on left side of frame assembly)
• Except 4.8l, 6.2l & 5.3l
• Fuel pump flow control module (4.8l, 6.2l & 5.3l) (rear frame, near spare tire mount)
• Hi serial data
• Hi spd gmlan (+)
• Hi spd gmlan (-)
• Hi spd gmlan serial data ( +)
• Hi spd gmlan serial data (+)
• Hi spd gmlan serial data (-)
• Left i/p junction block (lower left side of dash)
• Less than 8600 gvm
• Lo serial data
• Serial data (-) hi spd gmlan
• Serial data comm enable
• Tan
• Trailer brake
• Trailer brake controller module (tbcm) (integrated trailer brake w/o 10 series) fuel pump/trailer brake control module (integrated trailer brake w/ 10 series) (20/30 series: left rear frame rail) (31 series: on left frame rail)
• Vehicle communication interface module (vcim) (behind center of dash)
• W/ active brake control except 10 series
• W/ hydraulic brakes
• W/ onstar
• W/ trailer brake
• W/ two speed transfer case
• W/o
• W/o integrated trailer brake control
• W/o onstar
• W/o trailer brake
• W/o two speed transfer case
• X115
• X202
• Yaw rate & lateral acceleration sensor (w/ active brake control) (under center console trim panel)

Computer Data Lines Wiring Diagram, Except Hybrid (3 of 3) for Chevrolet Silverado 1500 2012

List of elements for Computer Data Lines Wiring Diagram, Except Hybrid (3 of 3) for Chevrolet Silverado 1500 2012:

• (left front of engine compt, near fan shroud) transmission control module (tcm)
• (outside of right front chassis frame) power take off (pto) module
• 2wd
• 4.3l
• 4.8l, 5.3l & 6.2l
• 4wd
• 6.0l
• 6.6l
• Accessory wakeup serial data
• Accessory wakeup serial data linear interconnect network bus
• Automatic transmission
• B10
• Body control module (bcm) (lower left side of dash)
• Control solenoid valve assembly
• Electronic compass module
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Except 6.6l
• Glow plug control module (gpcm) (6.6l) (right front side of engine)
• Hi spd gmlan serial data (+)
• Hi spd gmlan serial data (-)
• High speed gmlan serial data bus (+)
• High speed gmlan serial data bus (+) ser data comm enable
• High speed gmlan serial data bus (-)
• J104 (6.6l: in engine harness, 5 cm from engine control module connector breakout)
• J222 (w/ pto) (in instrument panel harness)
• Left i/p block junction (lower left side of dash)
• Nitrogen oxides sensor 1 (in exhaust, top left rear rear side of engine)
• Nitrogen oxides sensor 2 (in exhaust, middle of diesel particulate filter)
• Power take off (pto) module (outside of right front chassis frame)
• Reductant sensor module (above reductant tank)
• S x300
• Ser data commu- nication enable
• Speed a/t
• Tan
• Terminator
• W/ pto
• W/o pto
• X10
• X107
• X109
• X123
• X395

Computer Data Lines Wiring Diagram, Hybrid (1 of 3) for Chevrolet Silverado 1500 2012

List of elements for Computer Data Lines Wiring Diagram, Hybrid (1 of 3) for Chevrolet Silverado 1500 2012:

• (in i/p extension harness, behind left side of dash) splice pack jx223
• (lower left side of dash) left i/p junction block
• (not b
• (not f
• (not used)
• (under front passenger's seat) splice pack jx339
• 2 or more
• 3b1
• A/c compressor
• A10
• A15
• Audio amplifier (if equipped) (under rear of center console)
• C (not used)
• 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)
• Eter security
• G200 (on right front corner of hvac module)
• G201 (upper left corner of dash)
• Ground distribution system
• Heated seat control module (w/ spo heated seats)
• 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)
• Instrument panel cluster (ipc)
• J200
• L (not used)
• Left i/p junction block (lower left side of dash)
• Low speed gmlan serial data
• Low speed serial data
• Low speed serial data x7
• Ltr fuse 53 20a
• Memory seat module (w/ individual front 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)
• 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 i/p harness, behind left side of dash)
• Tan
• Theft deterrent control module (tdm) (on right side of steering column)
• Underhood fuse block (left side of engine compt)
• Used)
• 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/ front bench seat
• W/ front seat & remote control
• W/ individual front seat
• W/ luxury edition
• W/ onstar
• W/ provisions odom-
• W/ radio provisions
• W/ rear parking assist
• W/ rear seat & earphone jacks radio control
• W/ remote keyless entry
• W/o individual front seat
• W/o luxury edition
• W/o luxury edition &
• W/o radio provisions
• X150
• X201
• X202
• X212
• X301
• X303
• X305
• X331

Computer Data Lines Wiring Diagram, Hybrid (2 of 3) for Chevrolet Silverado 1500 2012

List of elements for Computer Data Lines Wiring Diagram, Hybrid (2 of 3) for Chevrolet Silverado 1500 2012:

• (lower left side of dash) (w/ two speed transfer case) transfer case shift control module
• (lower left side of dash) left i/p junction block
• (under second row seats) drive motor generator battery
• Accessory wakeup serial data
• Automatic transmission
• Body control module (bcm) (lower left side of dash)
• Control solenoid valve assembly
• Data link resistor (in chassis harness, on left rear chassis cross member)
• Drive motor generator battery control module
• Electronic compass module
• Electronic power steering motor control module (right rear of engine compt)
• Fuel pump flow control module (rear frame, near spare tire mount)
• Hi spd gmlan (+)
• Hi spd gmlan (-)
• Hi spd gmlan serial data (+)
• Hi spd gmlan serial data (-)
• High speed gmlan serial data bus (+)
• High speed gmlan serial data bus (-)
• J222 (in instrument panel harness)
• J338 w/ intergrated trailer brake control) (in chassis harness)
• Left i/p junction block (lower left side of dash)
• Linear interconnect network bus
• Low spd serial data
• Nca ser data bus (+)
• Nca ser data bus (-)
• Nca ser data commu- nication enable
• Network bus
• Pnk
• Red
• Ser data bus (+)
• Ser data bus (-)
• Ser data comm enable
• Ser data enable
• Serial data
• Serial data comm enable
• Tan
• Trailer brake controller module (tbcm) (w/o 10 series) fuel pump/trailer brake control module (w/ 10 series) (20/30 series: left rear frame rail) (31 series: on left frame rail)
• Vehicle communication interface module (vcim) (behind center of dash)
• W/ trailer brake
• W/ two speed transfer case
• W/o trailer brake
• W/o two speed transfer case
• Wake up sig
• Wakeup serial data
• X10
• X109 b8
• X129
• X150
• X202
• X215
• X350

Computer Data Lines Wiring Diagram, Hybrid (3 of 3) for Chevrolet Silverado 1500 2012

List of elements for Computer Data Lines Wiring Diagram, Hybrid (3 of 3) for Chevrolet Silverado 1500 2012:

• (in instrument panel harness) j225
• A4 pnk
• Accessory dc power control module (right rear of engine compt)
• Apm wake-up
• Auxiliary fuse block (left side of engine compt)
• Batt positive volt
• Becm fuse 10 15a
• Data link resistor 2
• Detection sens sig
• Drive motor generator power inverter module (right rear of engine compt)
• Electronic brake control module (ebcm) (on left side of frame assembly)
• Engine control module (ecm) (left front of engine compt)
• G200 (on right front corner of hvac module)
• G3 pnk
• Gnd
• High speed gmlan serial data bus (+)
• High speed gmlan serial data bus (-)
• High voltage circuit impact detection sensor
• Hot at all times
• Hot w/ run/crnk relay energized
• Ication enable
• Ign volt
• J200
• J226 (in instrument panel harness)
• J240 (in instrument panel harness)
• Left i/p junction block (lower left side of dash)
• Low ref
• Low speed gmlan serial data
• Misc ign fuse 43 10a
• Pnk
• Power distribution system
• Ptlan +
• Ptlan -
• Ptlan - yaw rate & lateral acceleration sensor (under center console trim panel)
• Ser data bus (+)
• Ser data bus (-)
• Ser data commun-
• Serial data
• Serial data gateway (sdg) module
• Serial data wake-up sig
• Signal
• Tan
• Underhood fuse block (left side of engine compt)
• Wake up sig
• Wake up signal
• Wake-up sig
• Wakeup serial data
• X103
• X129
• X150
• X215
• X300