Driver Side J/B ECU Power Source Circuit

ENGINE HOOD / DOOR: LUGGAGE COMPARTMENT DOOR OPENER AND CLOSER 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