CHECK BATTERY SHORT OF THE VALVE RELAY CONTROL SYSTEM HARNESS.

1) Turn the ignition switch to ON.

2) Measure the voltage between VDCCM connector and chassis ground.

Connector & terminal

(B310) No. 27 (+) — Chassis ground (−):

(B310) No. 48 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 V?

Yes No

Repair the harness between VDCCM and relay box and check all of the fuses.