P0669moderate severityPowertrain
PCM/ECM/TCM Internal Temperature Sensor Circuit High
on 2010 Ford Explorer 4.6L V8 · RWD
What this code means
The PCM detected a high voltage signal from the internal module temperature sensor. This sensor tracks the control module's operating temperature.
Symptoms
- Check engine light on
- Possible performance issues
- No obvious drivability symptoms
Common causes
- Faulty internal temperature sensor
- Internal circuit fault
- Overheated control module
- Faulty PCM
Diagnostic steps
- Scan for codes
- Verify sensor data with scan tool
- Check module for heat exposure
- Replace PCM if internal fault confirmed
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P0005
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P0006
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P0007
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P0008
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P0010
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