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 |
|---|---|---|---|---|
| Low Speed Cooling Fan Relay Coil Voltage Supply Circuit | P0480 | P0480 | P0480 | - |
| High Speed Cooling Fan Relay Coil Voltage Supply Circuit | P0481 | P0481 | P0481 | - |
| Low Speed Cooling Fan Relay Switch B+ Circuit | P0480 | 1 | - | - |
| High Speed Cooling Fan Relay Switch B+ Circuit | P0481 | 3 | - | - |
| Low Speed Cooling Fan Relay Coil Control Circuit | P0480 | P0480 | P0480 | - |
| High Speed Cooling Fan Relay Coil Control Circuit | P0481 | P0481 | P0481 | - |
| Low Speed Relay Controlled Output Circuit | P0480 | 1 | 2 | - |
| High Speed Relay Controlled Output Circuit | P0481 | 3 | 4 | - |
| 1. Low speed fan inoperative without a DTC. 2. Low speed fan always ON without a DTC. 3. High speed fan inoperative without a DTC. 4. High speed fan always ON without a DTC. |
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