ENGINE OIL CONTROL VALVE CHECK

2. caution To prevent the coil from burning, keep the duration of the voltage application as short as possible. Check that the operation sound of the intake engine oil control valve can be heard when the positive battery voltage is supplied to the intake engine oil control valve. (Use the special tool MB991658 to connect terminal No. 2 of the intake engine oil control valve connector to the positive battery terminal and terminal No. 1 to the negative battery terminal.) 3.If the operation sound cannot be heard, replace the intake engine oil control valve.

2.Measure resistance between terminal No. 1 and terminal No. 2 of the connector at the intake engine oil control valve side. Standard value: 6.9 - 7.9 Ω [at 20°C (68°F)] 3.If resistance is not within the standard value, replace the intake engine oil control valve.

2. caution To prevent the coil from burning, keep the duration of the voltage application as short as possible. Check that the operation sound of the exhaust engine oil control valve can be heard when the positive battery voltage is supplied to the exhaust engine oil control valve. (Use the special tool MB991658 to connect terminal No. 2 of the exhaust engine oil control valve connector to the positive battery terminal and terminal No. 1 to the negative battery terminal.) 3.If the operation sound cannot be heard, replace the exhaust engine oil control valve.

2.Measure resistance between terminal No. 1 and terminal No. 2 of the connector at the exhaust engine oil control valve side. Standard value: 6.9 - 7.9 Ω [at 20°C (68°F)] 3.If resistance is not within the standard value, replace the exhaust engine oil control valve.