P0A4EGenerator Position Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0A4E is set when a generator resolver signal sits above its permitted range, which usually points to an open signal line pulled up by the input circuit or a short to a supply voltage. No manufacturer documents P0A4E publicly. Mitsubishi evaluates the same condition on the 2023 Outlander PHEV but reports it under its own codes: a sine or cosine voltage of 4.9 V or more for 0.21 s stores P0C67 or P0C6C. A Bosch patent explains how the averaged offset of the receiver coil lines reveals whether a line is shorted to supply rather than to ground. CARB requires out-of-range checks for hybrid input components. P0A4D is the low counterpart, P0A4B the general circuit code, P0A4C the plausibility check. The generator is usually shut off and the hybrid warning comes on.
- What you may notice
- Hybrid system warning and MIL
- Generator disabled, engine-only or no-start condition
- Likely causes
- LikelyOpen resolver signal line or pushed-out terminal
- PossibleSignal line shorted to a supply voltage
- RareFaulty resolver input stage in the power drive unit
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €3,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.