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

P2C09

A Camshaft Profile Actuator Position Sensor B Circuit Bank 1

The position sensor B of camshaft profile actuator on the intake side of bank 1 reports a circuit condition. Cam profile selection feedback cannot be measured reliably.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberC / 09

Possible causes

  • Position sensor failed high
  • Wiring or connector fault medium

Symptoms

  • Check engine light on
  • Power loss especially in mid-rpm range
  • Possible rough idle or stalling
  • Increased fuel consumption

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • Estimated cost: 150–800 €
  • Estimated time: 1–4 h
  • Component: a camshaft profile actuator pos sensor b b1
  • Component: wiring harness
  • Component: ecm
  • MIL / check engine light
  • emissions-relevant
  • 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