2005 Chevrolet SSR AutomaticFACTORY OEM SERVICE PROCEDURE

Computer/Integrating Systems Connector End Views

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) - C1

GM73152Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12084945
  • 16-Way F Micro-Pack 100 Series (GY)
Pin Wire Color Circuit No. Function
A1 - - Not Used
A2 L-GN 1391 Driver Door Unlock Relay Control
A3 L-BU 195 Door Lock Relay Control
A4 WH 194 Door Unlock Relay Control
A5-A6 - - Not Used
A7 OG/BK 781 Driver Door Lock Switch Unlock Signal
A8 RD/BK 780 Driver Door Lock Switch Lock Signal
B1 - - Not Used
B2 D-BU 1201 Headlamp Low Beam Signal
B3 - - Not Used
B4 L-BU 74 Park Lamp Switch Signal
B5 - - Not Used
B6 L-GN/BK 1137 DRL Ambient Light Sensor Signal
B7 YL/BK 1138 DRL Ambient Light Sensor Low Reference
B8 L-GN 66 A/C Request Signal
Body Control Module (BCM) - C2

GM73156Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110088
  • 24-Way F Micro-Pack 100 Series (GY)
Pin Wire Color Circuit No. Function
A1 L-GN 867 ABS Indicator Failure Control
A2 L-BU 1134 Park Brake Switch Signal
A3 PK 1200 Headlamp High Beam Signal
A4 - - Not Used
A5 PU 333 Brake Fluid Level Sensor Signal
A6 BN 96 Windshield Wiper Switch Pulse Delay Signal
A7 L-BU 832 Traction Control Active Signal
A8 PK 94 Windshield Washer Switch Signal (Not Used)
A9 RD 228 Windshield Washer Pump Control
A10 PK 339 Ignition 1 Voltage
A11 L-GN 80 Key In Ignition Switch Signal
A12 BK/WH 746 Passenger Door Ajar Switches Signal
B1 D-GN 264 Security Indicator Control
B2 GY/BK 745 Left Front Door Ajar Switch Signal
B3 L-BU 292 Rear Defog Switch Signal
B4 RD/BK 744 Rear Compartment Lid Ajar Switch Signal
B5 D-GN 392 Rear Window Washer Pump Control
B6 WH 2192 Traction Ready Indicator Control
B7 BK/WH 56 Trunk Release Switch Signal
B8 BK/WH 99 Windshield Washer Fluid Level Signal
B9 YE 743 Accessory Voltage
B10 BN 9 Park Lamp Supply Voltage
B11 L-GN 1478 Coolant Level Switch Signal
B12 - - Not Used
Body Control Module (BCM) - C3

GM130689Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110244
  • 24-Way F Micro-Pack 100 Series (PK)
Pin Wire Color Circuit No. Function
A1 WH 156 Dome Lamp Control
A2 RD/WH 812 12-Volt Reference
A3 WH 352 Headlamp Relay Coil Supply Voltage
A4 D-BU 1660 Traction Control Indicator Control
A5 OG/BK 1445 Windshield Wiper Relay Control
A6 OG/BK 1445 Windshield Wiper Relay Control (Not Used)
A7 WH 1080 Park Lamp Relay Control
A8 L-GN/BK 592 DRL Relay Control
A9 GY 1359 LCD Backlighting Lamp Control
A10-A11 - - Not Used
A12 TN 2501 CAN Low
B1 TN/WH 816 A/T Shift Lock Solenoid Control
B2 BK 28 Horn Relay Control
B3 OG/BK 1057 Low Reference
B4 GY 112 Windshield Wiper Switch Signal 1
B5 GY/BK 1381 LCD Dimming Signal
B6 WH 193 Rear Defog Relay Control
B7 YE 1836 Security System Sensor Signal
B8 D-GN 113 Windshield Wiper Switch Signal 2
B9 - - Not Used
B10 PU 1807 Class 2 Serial Data
B11 TN/WH 2500 CAN High
B12 - - Not Used
Body Control Module (BCM) - C4

GM73158Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110626
  • 8-Way F Metri-Pack 280 Series (GY)
Pin Wire Color Circuit No. Function
A OG 1732 Courtesy Lamp Supply Voltage
B-C - - Not Used
D OG 2540 Battery Positive Voltage
E GY 8 Instrument Panel Lamps Dimmer Switch Signal
F BK 550 Ground
G GY 382 Trunk Release Enable Relay Switch Supply Voltage
H OG 1640 Battery Positive Voltage
Data Link Connector (DLC)

GM808656Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15317575
  • 16-Way F Metri-Pack 150 Series (BK)
Pin Wire Color Circuit No. Function
1 - - Not Used
2 PU 1807 Class 2 Serial Data
3 - - Not Used
4 BK 550 Ground
5 BK 451 Ground
6 - - Not Used
7 PU 1319 Engine/Radio Serial Data K-Line
8-11 - - Not Used
12 L-BU 1276 ABS Serial Data K-Line
13-15 - - Not Used
16 OG 2140 Battery Positive Voltage
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.