CHECK POWER SUPPLY TO EGR VALVE.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from EGR valve.

3) Turn the ignition switch to ON.

4) Measure the voltage between EGR valve connector and engine ground.

Connector & terminal

(E18) No. 2 (+) — Engine ground (−):

(E18) No. 5 (+) — Engine ground (−):

QUESTION

Is the voltage 10 V or more?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit in harness between EGR valve and main relay connector

• Poor contact of coupling connector