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.
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
DTC P0480 or P0481
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Low Speed Cooling Fan Relay Control Circuit | P0480 | P0480 | P0480 | - |
| Cool/Fan 1 Relay Coil Voltage Supply Circuit | P0480 | P0480 | P0480 | - |
| High Speed Cooling Fan Relay Control Circuit | P0481 | P0481 | P0481 | - |
| Cool/Fan 2 Relay Coil Voltage Supply Circuit | P0481 | P0481 | P0481 | - |
| Cool/Fan Relay Coil Voltage Supply Circuit | P0480 | P0480 | P0480 | - |