P2DCB
Starter/Generator Phase X-Y-Z Current Sensor Correlation
The phase X, Y, and Z current sensors of the starter/generator do not correlate within the calibrated tolerance. Sum of phase currents should be near zero.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- One sensor offset driftedCommon
- Ground offset between sensorsPossible
Parts involved
- Starter Generator Phase X Current Sensor
- Starter Generator Phase Y Current Sensor
- Starter Generator Phase Z Current Sensor
P2DCB is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.