P0652
Sensor Reference Voltage B Circuit Low
Generic code
Computer Output Circuit
High severity
Hard repair
Free on OBD DashX
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What P0652 means
- The fault code P0652 indicates that there is an issue with the reference voltage for one of the sensors in the vehicle. This may cause various electrical system failures or erroneous sensor readings.
Possible symptoms
- Illuminated check engine light
- Erratic or incorrect sensor readings
- Electrical system failures or malfunctions
Possible causes
- Faulty or damaged sensor
- Corroded or damaged wiring or connections in the sensor circuit
- Failed engine control module (ECM)
- Failed voltage regulator
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 faulty or damaged sensor
- Check and repair any corroded or damaged wiring or connections in the sensor circuit
- Replace the engine control module (ECM) if necessary
- Replace the voltage regulator
Free on OBD DashX
P0652 on OBD DashX
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