Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Stop Lamps Malfunction
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+, BCM C4 Terminal 1 | 2, 6 | 2, 6 | -- | -- |
| B+, BCM C4 Terminal 3 | 3, 7 | 3, 7 | -- | -- |
| B+, BCM C4 Terminal 4 | 4 | 4 | -- | -- |
| Brake Apply Sensor Supply Voltage | C0870 03 | C0870 03 | C0870 07 | -- |
| Brake Apply Sensor Signal | C0277 06 | C0277 06 | C0277 07 | C0277 09 |
| Brake Pedal Position Sensor Low Reference | -- | 1, 5 | -- | -- |
| Stop Lamp Switch Signal | C0297 00 | -- | -- | -- |
| CHMSL Supply Voltage | B3445 00 | 4 | 4 | -- |
| Stop Lamp Relay B+ -- Export | 5 | 5 | -- | -- |
| Stop Lamp Relay/CHMSL Supply Voltage -- Export | B3445 00 | 5 | 5 | -- |
| Left Rear Stop/Turn Lamp Supply Voltage | 2 | 2 | 2 | -- |
| Right Rear Stop/Turn Lamp Supply Voltage | 3 | 3 | 3 | -- |
| Left Rear Stop Lamp Supply Voltage -- Export | 6 | 6 | 6 | -- |
| Right Rear Stop Lamp Supply Voltage -- Export | 7 | 7 | 7 | -- |
| Center High Mounted Stop Lamp (CHMSL) Ground | -- | 4 | -- | -- |
| Left Rear Tail Lamp Assembly Ground | -- | 2, 6 | -- | -- |
| Right Rear Tail Lamp Assembly Ground | -- | 3, 7 | -- | -- |
| Stop Lamp Relay Ground -- Export | -- | 5 | -- | -- |
| 1. Stop lamps malfunction 2. Left stop/turn lamp malfunction 3. Right stop/turn lamp malfunction 4. Center high mounted stop lamp (CHMSL) malfunction 5. Stop lamps malfunction -- export 6. Left stop lamp malfunction -- export 7. Right stop lamp malfunction -- export |
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