Fault Code P0690
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0690
ECM/PCM Power Relay Control Circuit High
This code indicates an excessively high voltage in the control circuit of the Engine Control Module (ECM) / Powertrain Control Module (PCM) power relay. This condition can prevent the PCM/ECM from shutting down or cause it to remain active.
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 does not shut off after ignition is turned off
- Engine does not start
- Check Engine Light on
- Battery drain
Possible Causes
- 1Damaged wiring or short to voltage in the control circuit
- 2Faulty PCM/ECM power relay (stuck ON)
- 3Problem with the PCM/ECM
- 4Faulty fuse
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