Diagnostic Fault Information
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Left Turn Signal Switch Signal | 1, 3 | 1, 3 | 1, 3 | - |
| Right Turn Signal Switch Signal | 2, 4 | 2, 4 | 2, 4 | - |
| Left Front Turn Signal Lamp Supply Voltage | B3948 | B3948 | B3948 | - |
| LF Park/Turn Signal Lamp Ground | 1 | 1 | 1 | - |
| Right Front Turn Signal Lamp Supply Voltage | B3949 | B3949 | B3949 | - |
| RF Park/Turn Signal Lamp Ground | 2 | 2 | 2 | - |
| Left Rear Stop/Turn Signal Lamp Supply Voltage | B3950 | B3950 | B3950 | - |
| Left Tail/Stop and Turn Signal Lamp Ground | 3 | 3 | 3 | - |
| Right Rear Stop/Turn Signal Lamp Supply Voltage | B3951 | B3951 | B3951 | - |
| Left Tail/Stop and Turn Signal Lamp Ground | 4 | 4 | 4 | - |
| Turn Signal/Multifunction Switch Ground | - | 1, 2, 3, 4 | 1, 2, 3, 4 | - |
| 1. Left Front Park/Turn Signal Inoperative 2. Right Front Park/Turn Signal Inoperative 3. Left Rear Stop/Turn Signal Inoperative 4. Right Rear Stop/Turn Signal Inoperative |
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