Condition for fault identification
Test condition:
The fault is recognized when the camshaft cannot be adjusted to the specified position.
Potential problem source(s):
- Contaminated oil passage at VANOS solenoid valve
- Oil pressure too low
- Defective wires or plug terminals on VANOS solenoid valve
- VANOS solenoid valve seized
- VANOS solenoid valve defective
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- Engine cold start to ensure that catalyst heater is active.
Time condition:
- None
Other conditions:
- Engine ON