CHECK HARNESS BETWEEN ECM AND EGR VALVE CONNECTOR.

1) Turn the ignition switch to OFF.

2) Measure the resistance between ECM and EGR valve connector.

Connector & terminal

DTC P1492; (B134) No. 8 — (E18) No. 3:

DTC P1494; (B134) No. 9 — (E18) No. 1:

DTC P1496; (B134) No. 10 — (E18) No. 4:

DTC P1498; (B134) No. 20 — (E18) No. 6:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

Open circuit in harness between ECM and EGR valve connector

Poor contact of coupling connector