DTC P0691: Fan 1 Control Circuit Low
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0691: FAN 1 CONTROL CIRCUIT LOW
| Description: | This DTC sets when the PCM detects a short to ground on the FCV circuit. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the FCV circuit for a short to ground. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST AH . | ||