CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ASSEMBLY LH CONNECTOR.

Measure the resistance between ECM and chassis ground.

Connector & terminal

(B137) No. 12 — Chassis ground:

(B137) No. 13 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Repair the short circuit to ground in harness between ECM and tumble generator valve assembly LH connector.