P0690
Electronic Control Module Power Relay Sense Circuit High
Generic code
Computer Output Circuit
High severity
Hard repair
Free on OBD DashX
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What P0690 means
- The fault code P0690 indicates that there is a high voltage signal from the power relay sense circuit of the ECM/PCM. This can cause the engine to run poorly or not start at all.
Possible symptoms
- Illuminated check engine light
- Engine may not start
- Engine runs poorly or stalls
- Reduced engine power or acceleration
Possible causes
- Failed ECM/PCM power relay
- Faulty wiring or connections in the power relay sense circuit
- Loose or corroded electrical connections
- Failed ECM/PCM
Related parts
- Engine Control Module (ECM): ECM is the part of the car computer that controls the engine system and performance. Problems lead to poor fuel economy, engine stalling & unwanted engine vibrations
Possible solutions
- Replace the ECM/PCM power relay
- Check and repair any damaged wiring or connections in the power relay sense circuit
- Tighten or clean any loose or corroded electrical connections
- Replace the ECM/PCM if necessary
Free on OBD DashX
P0690 on OBD DashX
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