DTC P0691: Fan 1 Control Circuit Low
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2012 Lincoln Navigator L, 2012 Lincoln Navigator, 2012 Lincoln MKZ, 2012 Lincoln MKX, and 2012 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
P0691 - FAN 1 CONTROL CIRCUIT LOW
| Description: This DTC sets when the PCM detects the fan control (FC) circuit voltage is less than the desired voltage. | |||
Possible Causes:
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| Diagnostic Aids: Check the wiring, connectors and FC relay for damage. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST KF . | ||