Body Control System Connectors
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) C1 Connector End Views
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | - | - | Not Used |
| A2 | WH | 2282 | Headlamp Washer Relay Control (CE4) |
| A3 | OG | 1140 | Battery Positive Voltage |
| A4 | BK/WH | 1969 | Headlamp High Beam Relay Control |
| A5 | PK/WH | 1970 | Headlamp Low Beam Relay Control |
| A6 | PK | 5363 | Incline Sensor Alarm Signal (BAE) |
| A7-A8 | - | - | Not Used |
| A9 | TN | 5458 | Midgate Overhead Console Switch Up Signal (Z88) |
| A10-A11 | - | - | Not Used |
| A12 | WH | 278 | Ambient Light Sensor Signal |
| B1 | L-GN | 1037 | BCM Class 2 Serial Data |
| B2 | BK | 279 | Ambient Light Sensor Low Reference |
| B3 | L-GN | 2270 | Rear Window Washer Relay Control |
| B4 | GY/BK | 2226 | Instrument Panel Lamps Dimmer Switch Low Reference |
| B5 | GY | 705 | 5-Volt Reference |
| B6 | WH | 2283 | Rear Wiper/Washer Switch Supply Voltage |
| B7 | OG/BK | 2090 | Courtesy Lamps Supply Voltage |
| B8 | L-GN | 1011 | Remote Radio Control Signal |
| B9 | GY | 391 | Rear Window Wiper Switch Signal |
| B10 | YE | 1836 | Security System Sensor Signal |
| B11 | GY | 2521 | Right Sunload Sensor Signal |
| B12 | L-BU/BK | 2519 | Left Sunload Sensor Signal |
Body Control Module (BCM) C2 Connector End Views
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| E1-E2 | - | - | Not Used |
| E3 | L-GN | 80 | Key In Ignition Switch Signal |
| E4 | YE | 307 | Headlamp Switch Flash to Pass Signal |
| E5 | GY/BK | 308 | Park Lamp Switch Signal |
| E6 | PK/BK | 109 | Hood Ajar Switch Signal (UA2) |
| E7 | PK | 1348 | Headlamp On Indicator Control |
| E8 | BK | 1835 | Security System Sensor Low Reference |
| E9 | RD/WH | 812 | 12-Volt Reference |
| E10 | - | - | Not Used |
| E11 | DK GN/ WH |
1317 | Fog Lamp Relay Control (T96) |
| E12 | BK | 28 | Horn Relay Control |
| E13 | - | - | Not Used |
| E14 | TN | 5463 | DRL Defeat On Indicator Control |
| E15-E16 | - | - | Not Used |
| F1-F2 | - | - | Not Used |
| F3 | D-GN | 113 | Windshield Wiper Switch Signal 2 |
| F4 | D-BU/WH | 1495 | Courtesy Lamps On Signal |
| F5 | BN/WH | 1871 | Headlamp Washer Switch Signal (CE4) |
| F6 | OG | 192 | Front Fog Lamps Switch Signal (T96) |
| F7 | L-BU | 187 | Rear Fog Lamps Switch Signal (T79) |
| F8 | L-GN | 5462 | DRL Defeat Switch Signal |
| F9 | WH | 103 | Headlamp Switch Headlamps On Signal |
| F10 | L-GN | 11 | Headlamp High Beam Supply Voltage |
| F11 | PU | 328 | Interior Lamp Defeat Switch Signal |
| F12 | D-BU | 6252 | Midgate Ajar Indicator Switch (Z88) |
| F13 | PK | 5068 | Intrusion Sensor Switch Disable Signal (BAE) |
| F14 | YE | 710 | Class 2 Serial Data |
| F15-F16 | - | - | Not Used |
Body Control Module (BCM) C3 Connector End Views
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | FW | 2140 | Battery Positive Voltage |
| A2 | FW | 2140 | Battery Positive Voltage |
| A3 | FW | 748 | Right Rear Door Ajar Switch Signal |
| A4 | FW | 1134 | Park Brake Switch Signal |
| A5 | FW | 195 | Door Lock Relay Control |
| A6 | FW | 2265 | Power Window Lockout Left Rear Control |
| A7 | - | - | Not Used |
| A8 | - | 747 | Left Rear Door Ajar Switch Signal |
| A9- A10 | - | - | Not Used |
| A11 | FW | 1350 | Ground |
| A12 | FW | 1351 | RAP Relay Supply Voltage |
| A13 | FW | 194 | Door Unlock Relay Control |
| A14 | FW | 1080 | Park Lamp Relay Control |
| A15 | FW | 5168 | Power Sounder Enable Signal (BAE) |
| A16 | FW | 5204 | Intrusion Sensor Data Signal |
| A17 | - | - | Not Used |
| A18 | FW | 1390 | Ignition 0 Voltage |
| A19 | FW | 39 | Ignition 1 Voltage |
| A20 | FW | 541 | Ignition 3 Voltage |
| B1 | FW | 230 | Instrument Panel Lamps Dimming Control |
| B2 | FW | 230 | Instrument Panel Lamps Dimming Control |
| B3 | FW | 690 | Courtesy Lamp Supply Voltage |
| B4 | FW | 2240 | Battery Positive Voltage |
| B5 | FW | 1186 | Power Window Switch Right Rear Up Signal |
| B6 | FW | 2266 | Power Window Lockout Right Rear Control |
| B7 | FW | 1188 | Power Window Switch Right Rear Down Signal |
| B8 | FW | 1185 | Power Window Switch Left Rear Up Signal |
| B9 | FW | 1187 | Power Window Switch Left Rear Down Signal |
| B10 | - | - | Not Used |
| B11 | FW | 1350 | Ground |
| B12 | FW | 24 | Backup Lamp Supply Voltage |
| B13 | FW | 4440 | Battery Positive Voltage |
| B14 | FW | 1382 | LED Dimming Signal |
| B15 | FW | 543 | Accessory Voltage |
| B16 | - | - | Not Used |
| B17 | FW | 4040 | Battery Positive Voltage |
| B18 | FW | 1732 | Courtesy Lamps Supply Voltage |
| B19 | FW | 1977 | Rear Fog Lamp Relay and Indicator Control |
| B20 | FW | 5362 | Incline Sensor Alarm On Signal (BAE) |