Generator Inverter Power Supply A Circuit High
The generator inverter power supply A circuit reports a circuit high condition. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Affected components
- Generator inverter a
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Upstream regulator overvoltage
- Medium likelihood: Wire shorted to higher voltage
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.