CHECK HARNESS BETWEEN EGR VALVE AND ECM CONNECTOR.

Measure the resistance of harness between EGR valve and chassis ground.

Connector & terminal

(B134) No. 8 — Chassis ground:

(B134) No. 9 — Chassis ground:

(B134) No. 10 — Chassis ground:

(B134) No. 20 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Repair the short circuit of harness between main relay and EGR valve connector.