For 1990-2009 cars

Table 1: | BCM C1
Table 2: | BCM C2
Table 3: | BCM C3

#### BCM C1

Connector Part Information |

• | 12084945

• | 16-Way F Micro-Pack 100 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A1 | PNK/WHT | 1970 | Headlamp Relay Output (Low Beam)
A2 | DK GRN/WHT | 1317 | Fog Lamp Relay Output
A3-A7 | -- | -- | Not Used
A8 | PPL | 1600 | Fuse Output, Ignition 0 (Type III Fuse)
B1 | WHT | 1080 | Park Lamp Relay Output
B2-B4 | -- | -- | Not Used
B5 | LT GRN/BLK | 592 | Daytime Running Lamp (DRL) Relay Output
B6 | -- | -- | Not Used
B7 | LT GRN/BLK | 394 | Door Handle Switch Signal, Left Front
B8 | BRN | 341 | Fuse Output, Ignition 3 (Type III Fuse)

#### BCM C2

Connector Part Information |

• | 12110088

• | 24-Way F Micro-Pack 100 Series (GRY)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A1-A2 | -- | -- | Not Used
A3 | YEL/BLK | 1138 | Ambient Light Sensor Signal
A4 | BLK | 470 | Sensor Return
A5 | PNK | 1200 | Headlamp Lamp Output (High Beam)
A6 | BLK | 1835 | Passlock™ Signal Ground
A7 | -- | -- | Not Used
A8 | PPL | 16 | Turn Signal Flasher Input
A9 | LT BLU | 1134 | Park Brake Switch Signal
A10-A12 | -- | -- | Not Used
B1 | ORN | 1732 | Inadvertent Power Control (12 V)
B2 | LT GRN/BLK | 1137 | Ambient Light Sensor (5 V)
B3 | -- | -- | Not Used
B4 | DK BLU | 1201 | Headlamp Lamp Output (Low Beam)
B5 | PPL | 30 | Fuel Gauge Sensor Signal
B6 | YEL | 1836 | Passlock™ Sensor Signal
B7 | LT BLU/BLK | 1322 | Serial Data SPI Data Receive
B8 | BRN | 9 | Parklamp Feed
B9 | PNK | 439 | Fuse Output, Ignition
B10 | LT BLU | 395 | Door Handle Switch Signal, Right Front
B11 | BLK/WHT | 238 | Seat Belt Switch Signal
B12 | LT GRN | 80 | Key Reminder Switch Signal

#### BCM C3

Connector Part Information |

• | 12110244

• | 24-Way F Micro-Pack 100 Series (PNK)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A1-A2 | -- | -- | Not Used
A3 | YEL | 1321 | Serial Data SPI Data Transmit
A4 | ORN | 192 | Fog Lamp Switch Output, Front
A5 | -- | -- | Not Used
A6 | BLK/WHT | 99 | Windshield Washer Fluid Level Sensor Signal
A7 | PNK/BLK | 1323 | Serial Data SPI Clock
A8-A9 | -- | -- | Not Used
A10 | BLK/WHT | 451 | Engine Control Module Ground
A11 | WHT | 156 | Courtesy Lamp Output
A12 | ORN | 340 | Fuse Output, Battery (Type III Fuse)
B1 | ORN | 1540 | Fuse Output, Battery (Type III Fuse)
B2 | PPL | 1807 | Serial Data Signal, Class B, 10400 Baud (Primary)
B3 | -- | -- | Not Used
B4 | WHT | 1459 | Passlock™ Battery Voltage
B5 | -- | -- | Not Used
B6 | YEL/BLK | 68 | Low Coolant Level Indicator Lamp Output
B7 | LT GRN | 66 | A/C Request Input
B8-B9 | -- | -- | Not Used
B10 | BLK/WHT | 451 | Engine Control Module Ground
B11-B12 | -- | -- | Not Used