Driver Side J/B ECU Power Source Circuit

ENGINE HOOD / DOOR: LUGGAGE COMPARTMENT DOOR OPENER SYSTEM: Driver Side J/B ECU Power Source Circuit
- Driver Side J/B ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the main body ECU LH.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (TRK OPN, MPX-B)

(a) Remove the TRK OPN fuse from the main body ECU LH.

(b) Remove the MPX-B fuse from the engine room No. 1 relay block.

(c) Measure the resistance of the fuses.

Standard resistance:

Below 1 Ohms

NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK WIRE HARNESS (MAIN BODY ECU LH - BATTERY AND BODY GROUND)





(a) Disconnect the PM, PL, PA and PD ECU connectors.

(b) Measure the voltage and resistance of the wire harness side connectors.

Standard voltage:

Standard resistance










NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE