Diagnostic Fault Information
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. 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 |
|---|---|---|---|---|
| Relay Coil Voltage Supply | P0481 | P0480, P0481 | - | - |
| Relay Switch B+ | 1 | 1 | - | - |
| KR20C Cooling Fan Low Speed Relay Control | P0480 | P0480 | P0480, 3 | - |
| KR20D Cooling Fan High Speed Relay Control | P0481 | P0481 | P0481, 3 | - |
| Relay Controlled Output | 1 | 1 | 2 | - |
| 1. Fans inoperative without a DTC. 2. Fans always ON without a DTC. 3. The ECM must be commanding the relay ON in order for the DTC to set. |
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