P0696
PowertrainCooling Fanhigh severityFan 3 Control Circuit High
What P0696 Means
The PCM detected a high voltage condition in the cooling fan 3 control circuit. Fan 3 may run continuously or not respond, affecting cooling.
Symptoms
- Third cooling fan runs constantly
- Engine overheating
- Check engine light on
Common Causes
- Short to voltage in fan 3 wiring
- Failed fan 3 relay
- Corroded fan 3 connector
- Damaged PCM output driver
Diagnostic Steps
- Scan and confirm P0696 code
- Inspect fan 3 wiring for short to power
- Test fan 3 relay operation
- Check PCM fan 3 output signal
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