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

P2088

Camshaft Position A Actuator Control Circuit Low (Bank 1)

Drive voltage to the intake VVT oil control valve on bank 1 reads below the lower limit. Usually a short to ground or a coil shorted internally.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 88

Possible causes

  • Drive line shorted to ground high
  • Solenoid coil internally shorted medium
  • Connector pins corroded - high contact resistance low

Symptoms

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

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 40–300 €
  • Estimated time: 0.3–1.5 h
  • Component: vvt solenoid
  • Component: vvt wiring
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

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