Fault Code P0682
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0682
ECM/PCM Power Relay Sense Circuit Low
This code indicates a lower than expected voltage in the sense circuit of the Engine Control Module (ECM) / Powertrain Control Module (PCM) power relay. This can suggest an issue with the power supply to the vehicle's computer.
Part Details
Part Name
PCM/ECM Power Relay
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪200 - ₪1000
Engine Location
Engine bay / Fuse box
Symptoms
- Engine cranks but does not start or stalls
- Check Engine Light on
- Failures in other electrical systems
- Hard starting
Possible Causes
- 1Faulty PCM/ECM power relay
- 2Damaged wiring or short in the sense circuit
- 3Problem with the Powertrain Control Module (PCM/ECM)
- 4Low voltage in the electrical system (e.g., weak battery)
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