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 cowl side junction block ECU LH.
HINT:
Below, the driver side junction block ECU is referred to as the cowl side junction block ECU LH.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (TRK OPN, MPX-B, D/C CUT)
(a) Remove the TRK OPN fuse from the cowl side junction block LH.
(b) Remove the MPX-B and D/C CUT fuses 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 (COWL SIDE JUNCTION BLOCK LH - BATTERY AND BODY GROUND)





(a) Disconnect the PM, PL, PA and PD junction block connectors.
(b) Measure the voltage and resistance of the wire harness side connectors.
Standard voltage:






Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE