CHECK BATTERY SHORT CIRCUIT IN THE RELAY BOX CONTACT POINT CIRCUIT.

1) Turn the ignition switch to ON.

2) Measure the voltage between VDCH/U connector and chassis ground.

Connector & terminal

(VDC4) No. 5 (+) — Chassis ground (−):

(VDC4) No. 1 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 V?

Yes No

Replace the relay box. Check fuse No. 8 and SBF3.