2003 Chevrolet SSR BaseFACTORY OEM SERVICE PROCEDURE

Body Control System Connector End Views

Body Control Module (BCM) C1 Terminal Identification

GM40446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12177194
  • 6-Way F Metri-Pack 150 Series (WH)
Pin Wire Color Circuit No. Function
A BN/WH 230 Instrument Panel Lamp Dimming Control
B - - Not Used
C OG 4040 Battery Positive Voltage
D OG 1732 Electronic Control Unit 12-Volt Reference
E BN/WH 230 Instrument Panel Lamp Dimming Control
F OG 2240 Battery Positive Voltage
Body Control Module (BCM) C2 Terminal Identification

GM73156Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110088
  • 24-Way F Micro-Pack 100 Series (L-GY)
Pin Wire Color Circuit No. Function
A1 - - Not Used
A2 WH 2283 Rear Wiper/Washer Switch Supply Voltage
A3 TN/BK 254 Door Unlock Control
A4 PK/WH 1970 Headlamp Low Beam Relay Control
A5 D-GN/WH 1317 Fog Lamp Relay Control
A6 GY/BK 255 Door Lock Control
A7 L-GN 1391 Left Front Door Lock Relay Control
A8-A10 - - Not Used
A11 RD/WH 812 12-Volt Reference
A12 OG 1140 Battery Positive Voltage
B1 BK/WH 1969 Headlamp High Beam Relay Control
B2 WH 1080 Park Lamp Relay Control
B3 - - Not Used
B4 L-GN/BK 592 DRL Relay Control
B5 - - Not Used
B6 BK/WH 751 Signal Ground
B7 BK 1835 Security System Sensor Low Reference
B8 - - Not Used
B9 BK 28 Horn Relay Control
B10 - - Not Used
B11 GY 705 5-Volt Reference
B12 L-GN 1037 BCM Class 2 Serial Data
Body Control Module (BCM) C3 Terminal Identification

GM255037Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12160778
  • 24-Way F Micro-Pack 100 Series (BN)
Pin Wire Color Circuit No. Function
A1-A3 - - Not Used
A4 WH 278 Ambient Light Sensor Signal
A5 - - Not Used
A6 YE 1836 Security System Sensor Signal
A7 L-GN 1011 Remote Radio Control Signal
A8 L-BU 1134 Park Brake Switch Signal
A9 OG 192 Front Fog Lamp Switch Signal
A10 D-GN 113 Windshield Wiper Switch On Signal
A11-A12 - - Not Used
B1 YE 710 Class 2 Serial Data Secondary
B2 GY/BK 308 Park Lamp Switch On Signal
B3-B5 - - Not Used
B6 BK/WH 751 Signal Ground
B7 - - Not Used
B8 OG/BK 2090 Combined Vehicle Inertial Sensor Low Reference
B9 L-GN 11 Headlamp High Beam Supply Voltage
B10-B12 - - Not Used
Body Control Module (BCM) C4 Terminal Identification

GM130690Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110206
  • 24-Way F Micro-Pack 100 Series (L-BU)
Pin Wire Color Circuit No. Function
A1 L-GN 80 Key In Ignition Switch Signal
A2 YE 307 Headlamp Switch Flash To Pass Signal
A3 PK 1390 Off/Run/Crank Voltage
A4 PK 39 Run/Crank Ignition 1 Voltage
A5 BK/WH 746 Right Front Door Ajar Switch Signal
A6 - - Not Used
A7 L-BU 1134 Park Brake Switch Signal
A8-A11 - - Not Used
A12 WH 103 Headlamp Switch On Signal
B1-B2 - - Not Used
B3 YE 343 Accessory Voltage
B4 GY/BK 745 Left Front Door Ajar Switch Signal
B5 L-BU 195 Door Lock Control
B6 GY/BK 2226 Vehicle Speed Sensor Low Reference
B7 BK 279 Ambient Light Sensor Low Reference
B8-B9 - - Not Used
B10 WH 194 Door Unlock Control
B11-B12 - - Not Used
Body Control Module (BCM) C5 Terminal Identification

GM304345Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12177195
  • 6-Way F Metri-Pack 150 Series (BK)
Pin Wire Color Circuit No. Function
A-C - - Not Used
D OG 2140 Battery Positive Voltage
E GY/BK 690 Courtesy Lamp Relay Control
F L-GN 24 Backup Lamp Supply Voltage
Factory Service Tools

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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.