ECU Power Source Circuit

PARK ASSIST / MONITORING: ADVANCED PARKING GUIDANCE SYSTEM: ECU Power Source Circuit

ECU Power Source Circuit

DESCRIPTION

This circuit supplies power to operate the parking assist ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (P-IG1-1, P MPX-B AND P-ACC)
(a) Remove the P-IG1-1, P MPX-B and P-ACC fuses from passenger side junction block.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






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

2. CHECK HARNESS AND CONNECTOR (ECU - BATTERY AND BODY GROUND)




(a) Disconnect the L90 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:






B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
A -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE