P0699
Sensor Reference Voltage C Circuit High
Generic code
Computer Output Circuit
High severity
Hard repair
Free on OBD DashX
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What P0699 means
- The fault code P0699 indicates that there is an issue with the sensor reference voltage C circuit. This may cause the engine to run poorly or not start at all.
Possible symptoms
- Illuminated check engine light
- Reduced engine power or acceleration
- Poor running engine or difficulty starting the engine
Possible causes
- One or more shorted sensor on 5
- volt circuit.
- Damaged or corroded circuit for ECM ground.
- short circuit in wiring or connections in the ECM harness.
- Faulty ECM
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 failed sensor
- Check and repair any damaged wiring or connections. Check for damage/corrosion in ground wires and the terminal.
- Tighten or clean any loose or corroded electrical connections
- Replace the ECM if necessary
Free on OBD DashX
P0699 on OBD DashX
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