1.CHECK HARNESS BETWEEN ECM AS WELL AS MAIN RELAY AND INTAKE OIL FLOW CONTROL SOLENOID VALVE RH CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from the ECM and intake oil flow control solenoid valve RH.
3) Remove the main relay.
4) Measure the resistance of harness between ECM and main relay connector and intake oil flow control solenoid valve RH connector.
Connector & terminal
(B220) No. 38 — (E38) No. 1:
(B134) No. 33 — (E38) No. 2:
|
Is the resistance less than 1 Ω?
|
|
Repair the harness and connector.
NOTE:
In this case, repair the following item:
• Open circuit in harness between ECM and intake oil flow control solenoid valve RH connector
• Open circuit in harness between main relay and intake oil flow control solenoid valve RH connector
• Poor contact of coupling connector
|
2.CHECK HARNESS BETWEEN ECM AS WELL AS MAIN RELAY AND INTAKE OIL FLOW CONTROL SOLENOID VALVE RH CONNECTOR.
Measure the resistance between ECM and main relay connector and chassis ground.
Connector & terminal
(B220) No. 38 — Chassis ground:
(B134) No. 33 — Chassis ground:
|
Is the resistance 1 MΩ or more?
|
|
Repair the short circuit to ground in harness between ECM as well as main relay connector and intake oil flow control solenoid valve RH connector.
|
3.CHECK INTAKE OIL FLOW CONTROL SOLENOID VALVE RH.
Measure the resistance between intake oil flow control solenoid valve RH terminals.
|
Is the resistance 6 — 12 Ω?
|
Repair the poor contact of ECM, main relay connector, or intake oil flow control solenoid valve RH connector.
|
Replace the intake oil flow control solenoid valve RH.
• 1.5 L model 
• 2.0 L model
|
