P0A5B
Generator Current Sensor Circuit Low
Generic OBD-II
Common symptoms
What you'll notice
- Check and clean the connections and wiring of the generator current sensor circuit
- Replace the faulty generator current sensor
- Inspect and repair any damaged or corroded components in the generator current sensor circuit
Common causes
Most likely first
- Loose or damaged wiring in the generator current sensor circuit
- Faulty generator current sensor
- Malfunctioning generator or alternator
- Battery or charging system issues
How to diagnose & fix
Work through it in order
- Battery warning light illuminates on the dashboard
- Engine struggles to start or stalls frequently
- Weak or intermittent power to electrical components
- Fluctuating or inconsistent engine performance
Read & clear P0A5B yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.