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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Engine Cooling System) >> Diagnostic Information and Procedures >> DTC P0480, P0481, P0691, P0692, P0693 or P0694: Cooling Fan Relay >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 Chevrolet Spark. 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 P0480, P0481 or P0691, P0693 P0480, P0481 - -
Relay Switch B+ 1 1 - -
KR20C Cooling Fan Low Speed Relay Control P0480 or P0691 P0480 P0480 or P0692, 3 -
KR20D Cooling Fan High Speed Relay Control P0481 or P0693 P0481 P0481 or P0694, 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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