OBD-II code · Powertrain (generic, extended)
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.
Is it safe to drive with P2DCB?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyOne sensor offset drifted
- PossibleGround offset between sensors
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Starter Generator Phase X Current Sensor, Starter Generator Phase Y Current Sensor, Starter Generator Phase Z Current Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.