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BCM Connector Terminals With Pinouts

Fig 1: Identifying BCM Connector Terminals - C1
G99B02306Courtesy of GENERAL MOTORS CORP.
BCM Connector C1 Terminal Pinouts

Connector Part Information * 12160778
* 24 Way F Micro-Pack 100 Series (BRN)
Pin Wire Color Circuit No. Function
A1 BLK 1850 Ground
A2 ORN 1140 Fused Battery Positive Voltage
A3 WHT 194 Power Door Lock Relay Feed - Unlock Coil
A4 LT BLU 195 Power Door Lock Relay Feed - Lock Coil
A5 BRN 1295 Electronic Variable Orifice (EVO) Solenoid Output
A6 WHT 1294 Electronic Variable Orifice (EVO) Solenoid Feed
A7 BLK 755 Delayed Accessory Bus Relay Output Coil
A8 DK BLU 1393 Interior Lamp Relay Control - Coil
A9 BLK 28 Horn Relay Output - Coil
A10 - - Not Used
A11 LT GRN/BLK 592 Daytime Running Lamp Relay Output - Coil
A12 LT GRN 1037 Serial Data Signal (Class 2)
B1 BLK 1850 Ground
B2 PNK 39 Fused Ignition Positive Voltage
B3 RED/WHT 812 Reference Voltage Feed - 12 Volt
B4 ORN 461 Serial Data Signal
B5 GRY 705 Reference Voltage Feed - 5 Volt
B6 LT BLU 14 LH Turn Signal Lamp Input
B7 DK BLU 15 RH Turn Signal Lamp Input
B8 - - Not Used
B9 BRN 41 Fused Ignition 3 Output
B10 LT BLU 1134 Park Brake Switch Signal
B11 BLK/WHT 238 Seat Belt Switch Signal
B12 LT BLU 553 Tow/Haul Switch Input
Fig 2: Identifying BCM Connector Terminals - C2
GM130690Courtesy of GENERAL MOTORS CORP.
BCM Connector C2 Terminal Pinouts

Connector Part Information * 12110206
* 24 Way F Micro-Pack 100 Series (LT BLU)
Pin Wire Color Circuit No. Function
A1 YEL 710 Serial Data Signal (Class 2)
A2 ORN/BLK 1057 Sensor Return (Passlock)
A3 GRY/BLK 690 Courtesy Lamp Relay Output (Coil)
A4 LT GRN 1391 Power Door Lock Relay Control - LF
A5 WHT 1080 Park Lamp Relay Output (Coil)
A6 - - Not Used
A7 DK GRN/WHT 1317 Fog Lamp Relay Output (Coil)
A8 DK GRN 1655 Perimeter Lighting Relay Output
A9 -A10 - - Not Used
A11 WHT 352 Headlamp Relay Feed (Coil)
A12 PPL/WHT 1382 LED Dimming Signal
B1 DK GRN/WHT 817 Vehicle Speed Signal
B2 LT BLU 1059 Steering Wheel Position Sensor Signal
B3 YEL 1836 Passlock Sensor Signal
B4 - - Not Used
B5 PPL 524 Headlamp Dimmer Switch Output (High Beam)
B6 BRN 2409 Fused Interior Park Lamps Feed
B7-B8 - - Not Used
B9 LT GRN 80 Key Reminder Switch Signal
B10 PNK/BLK 1303 Liftgate Ajar Switch Signal
B11 DK BLU/WHT 727 Door Latch Switch Signal
B12 ORN 1732 Inadvertant Power Relay Status
Fig 3: Identifying BCM Connector Terminals - C3
GM362758Courtesy of GENERAL MOTORS CORP.
BCM Connector C3 Terminal Pinouts

Connector Part Information * 12191375
* 16 Way F Micro-Pack 100 Series (PPL)
Pin Wire Color Circuit No. Function
A1 DK BLU/WHT 149 Cargo Lamp Switch Input
A2 DK BLU/WHT 1495 Courtesy Lamp Switch Output
A3 BRN 1356 Flash to Pass Switch Signal
A4 GRY 705 Reference Voltage Feed - 5 Volt
A5 GRY 8 Instrument Panel Lamp Feed
A6 WHT 278 Photocell Signal
A7-B1 - - Not Used
B2 ORN 54 Door Jamb Switch Signal - Passenger
B2 LT GRN/BLK 394 Door Handle Switch Signal - (Uplevel)
B3 LT GRN 262 Door Key Lock Cylinder Switch Signal - Driver (Uplevel)
B4 TAN 126 Door Latch Switch Signal - LH Front
B5 ORN 192 Fog Lamp Switch Input
B6 PPL 328 Interior Lamp Defeat Switch Output
B7-B8 - - Not Used