DTC P0021-71: A Camshaft Position - Timing Over-Advanced or System Performance Bank 2 - Actuator stuck: Action
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- Vehicle Conditions to enable DTC Logging strategy
- Oil temperature greater than -10°C, ensure no other cam or oil temperature related faults are present, drive vehicle in part load conditions such that the inlet variable valve timing would normally be active, hold various speed load conditions for 6 to 10 seconds, conduct at least 5 load changes
- Prioritized Checks to Perform
- Check the oil level is correct
- Check variable camshaft timing solenoid circuit intake and exhaust connectors are not swapped
- Refer to the appropriate system wiring diagram and check variable camshaft timing solenoid circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Refer to the relevant sections of the service information and check the oil pressure is within specification. Check oil supply to camshaft is correct and that oil gallery is free from debris
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest
- Check and install a new variable camshaft timing actuator as required
- Refer to the relevant sections of the service information and check the camshaft operation