P1554moderate severityPowertrain
Cruise Engaged Circuit High Voltage
on 2010 GMC Terrain 3.6L V6 · FWD
What this code means
The PCM detected high voltage on the cruise control engaged circuit when cruise should not be active.
Symptoms
- Cruise control activating unexpectedly
- Check Engine Light
- Cruise control inoperative
- Vehicle speed changes without input
Common causes
- Faulty cruise control switch
- Short to voltage in cruise control circuit
- Faulty cruise control module
- Damaged wiring
Diagnostic steps
- Test cruise control switch
- Check circuit voltage
- Inspect wiring for shorts to power
- Test cruise control module
Repair notes
Repair shorted wiring or replace cruise control switch/module.
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P0014
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P0015
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