CHECK HARNESS BETWEEN ECM AND DPF PRESSURE DIFFERENTIAL SENSOR CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM.

3) Measure the resistance between ECM connector and chassis ground.

Connector & terminal

(B134) No. 56 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Repair the short circuit to ground in harness between ECM connector and DPF pressure difference sensor connector.