P1AB7
Starter/Generator Phase W Current Sensor Circuit Low Voltage
P1AB7 is an OBD-II diagnostic trouble code meaning: Starter/Generator Phase W Current Sensor Circuit Low Voltage. Common causes: phase w current sensor fault, open or short circuit in the sensor circuit. Estimated repair cost: $33–111.
Symptoms
- Check Engine Light Is On
- Problems starting the engine
- Reduced generator power
- Unstable operation of the starter-generator system
- Additional fault codes
Causes
- Phase W current sensor fault
- Open or short circuit in the sensor circuit
- Poor contact in circuit connectors
- Sensor power problems
- Engine control unit (ECU) malfunction
How to Fix
- Check the continuity of the phase W current sensor circuit
- Check sensor connectors and contacts
- Check the power supply and ground of the sensor
- Replace phase W current sensor if necessary
- Check and, if necessary, replace the engine control unit
Related codes
FAQ
What does the P1AB7 code mean?
P1AB7 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Phase W Current Sensor Circuit Low Voltage
What causes a P1AB7 error code?
The most common causes of P1AB7 include: Phase W current sensor fault; Open or short circuit in the sensor circuit; Poor contact in circuit connectors; Sensor power problems.
How do I fix a P1AB7 diagnostic trouble code?
To fix P1AB7: Check the continuity of the phase W current sensor circuit. Check sensor connectors and contacts. Check the power supply and ground of the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1AB7?
Yes, but get it checked soon
How much does it cost to fix P1AB7?
The estimated repair cost for P1AB7 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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