Diagnostic Fault Information
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. 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 |
|---|---|---|---|---|
| Headlamp High Beam Relay B+ | 3 | 3 | 3 | - |
| Headlamp Low Beam Relay B+ | 2 | 2 | 2 | - |
| Ambient Light Senor Signal | B2645 02 | B2645 05 | B2645 05 | - |
| Flash to Pass Switch Signal | 1 | 1 | 1 | - |
| Headlamp Switch High Beam Signal | 1 | 1 | 1 | - |
| Headlamp Switch Headlamps ON Signal | 1 | 1 | 1 | - |
| Headlamp Switch Headlamps OFF Signal | 1 | 1 | 1 | - |
| Headlamp High Beam Relay Control | B2580 06 | B2580 06 | B2580 01 | - |
| Headlamp Low Beam Relay Control | 1 | 1 | 1 | - |
| LF Low Beam Headlamp Control | 3 | 3 | 3 | - |
| RF High Beam Headlamp Control | 3 | 3 | 3 | - |
| LF High Beam Headlamp Control | 2 | 2 | 2 | - |
| RF Low Beam Headlamp Control | 2 | 2 | 2 | - |
| Ambient Light Senor Low Reference | - | 4 | 4 | - |
| LF Headlamp Ground | - | 2 | - | - |
| RF Headlamp Ground | - | 2 | - | - |
| Turn Signal/Multifunction Switch Ground | - | 1 | - | - |
| 1. Headlamps Switch Malfunction 2. Headlamps Malfunction - Low Beam 3. Headlamps Malfunction - High Beam 4. Automatic Lamp Control (ALC) Malfunction |
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