- Turn ignition switch OFF
- Disconnect turbocharger boost control solenoid valve harness connector.
- Disconnect hoses connected to turbocharger boost control solenoid valve.
- Check air passage continuity of turbocharger boost control solenoid valve under the following conditions.

Condition
| Air passage continuity between (A) and (B)
| Air passage continuity between (A) and (C)
|
12 V direct current supply between terminals 1 and 2
| Existed
| Not existed
|
No supply
| Not existed
| Existed
|
Is the inspection result normal?
YES
>>INSPECTION END
NO
>>Replace turbocharger boost control solenoid valve.