CHECK GROUND SHORT CIRCUIT IN RELAY BOX CIRCUIT.

1) Disconnect the connectors (B370) (LHD model) and (F90) (RHD model) from relay box.

2) Measure the resistance between the relay box connector unit and chassis ground.

Connector & terminal

(VDC4) No. 4 — Chassis ground:

QUESTION

Is the resistance 1 MΩ or more?

Yes No

Replace the relay box.