P0A5A: Generator Current Sensor Circuit Range/Performance
What to do
Worth fixing promptly even without symptoms — the battery's charge accounting runs through this sensor.
What this code means
The generator's current reading is alive but implausible — the power-on zero check and drifted offset story of P0A52, on the charging machine.
A drifted generator current sensor has one consequence the drive motor's version lacks: charge accounting. The module meters energy into the battery through this reading, so a lying sensor quietly skews the battery's bookkeeping before any warning appears.
Likely causes
Start here
- Faulty motor current sensor · specialist
- Sensor drifted out of calibration · specialist
Less common
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
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Community experience
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