OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

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.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberD / CB

Possible causes

  • One sensor offset drifted high
  • Ground offset between sensors medium

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 400–2500 €
  • Estimated time: 2–8 h
  • Component: starter generator phase x current sensor
  • Component: starter generator phase y current sensor
  • Component: starter generator phase z current sensor
  • MIL / check engine light
  • limp mode possible

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication