P0A6F: Generator Phase U Current
What to do
Rough or laboured engine starting plus this code is the generator limping on two phases. The insulation test before any motor or inverter quote, as across the phase families. High-voltage cabling — no home investigation.
What this code means
The current in phase U of the generator is wrong — one of its three circuits disagreeing with the others.
The three-phase argument at P0A5D applies to the generator exactly as to the motors: three circuits that must balance, four suspects sorted by cost, and the insulation measurement that separates a winding fault from everything else. What the machine's job adds is where the symptoms land — this is the P0A22 pattern again. A generator missing a phase charges roughly and starts the engine roughly, so lumpy engine cranking is this family's version of the pulling-away judder, and charging held back shows as the engine running more than it used to.
Likely causes
Start here
- Damaged high voltage phase cable or terminal · specialist
Less common
- Motor winding insulation breakdown · specialist
- Faulty power inverter · specialist
- Faulty motor current sensor · specialist
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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