P0691

P0691 - Fan 1 Control Circuit Low.

DTC Description
P0691 P0691 - Fan 1 control circuit.: Short circuit to ground.

Possible Causes:
1. Connectors C0331, C0701, C1680, C0420.
2. Open circuit C0331/4 (UW) - C0701/5 (UY).
3. Short circuit C0331/4 (UW) - Ground.
4. Cooling fan controller unit.
5. MS43 ECM.

Step 1-5: