P2DC5Starter/Generator Phase Z Current Sensor Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2DC5 records a circuit fault of the phase Z current sensor in the starter/generator. A Z phase only exists on machines with more than one phase group. Mazda, for one, gives an integrated machine a second set of stator drivers labelled X, Y and Z, and CARB asks for circuit checks on such hybrid inputs. Since such sensors usually sit inside the machine electronics, a confirmed internal fault often means replacing the complete starter/generator, while a harness or plug problem can be fixed on its own. Rule out the external side first: supply, ground, connector and the low-voltage leads. No manufacturer documents P2DC5 publicly. Range check: P2DC6; high and low: P2D94, P2D97; intermittent: P2D9A.
- What you may notice
- MIL and battery warning
- No recuperation and no electric boost
- Likely causes
- LikelyPhase Z sensor inside the starter/generator electronics failed
- PossibleLow-voltage connector of the starter/generator damaged or not latched
- RareSupply or ground fault of the machine electronics
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.