P1AB1
Starter/Generator Phase U-V-W Current Sensor Overcurrent
P1AB1 is an OBD-II diagnostic trouble code meaning: Starter/Generator Phase U-V-W Current Sensor Overcurrent. Common causes: u-v-w phase current sensor fault, short circuit in the sensor circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Problems starting the engine
- Reduced efficiency of regenerative braking
- Unstable operation of the hybrid system
- Reduced engine power
Causes
- U-V-W phase current sensor fault
- Short circuit in the sensor circuit
- Wiring Harness Problems
- Starter/generator malfunction
- Problems with the hybrid system control unit
How to Fix
- Check the continuity of the current sensor circuit
- Test the current sensor with a multimeter
- Inspect the wiring harness for damage
- Check the operation of the starter/generator
- Scan the control unit for additional errors
Related codes
FAQ
What does the P1AB1 code mean?
P1AB1 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Phase U-V-W Current Sensor Overcurrent
What causes a P1AB1 error code?
The most common causes of P1AB1 include: U-V-W phase current sensor fault; Short circuit in the sensor circuit; Wiring Harness Problems; Starter/generator malfunction.
How do I fix a P1AB1 diagnostic trouble code?
To fix P1AB1: Check the continuity of the current sensor circuit. Test the current sensor with a multimeter. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1AB1?
Limited driving only, diagnose soon
How much does it cost to fix P1AB1?
The estimated repair cost for P1AB1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat