CLEARANCE SONAR SYSTEM > POWER SOURCE OF CLEARANCE WARNING ECU CIRCUIT

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DESCRIPTION

This circuit provides power to operate the clearance warning ECU.

WIRING DIAGRAM


E110340E01


INSPECTION PROCEDURE

1.INSPECT FUSE (LH-IG)

  1. Remove the LH-IG fuse from the cowl side junction block LH.

  1. Measure the resistance of the LH-IG fuse.

    Standard resistance:
    Below 1 Ω



NG
REPLACE LH-IG FUSE
OK


2.INSPECT CLEARANCE WARNING ECU (IG TERMINAL VOLTAGE)
E108073E04

  1. Disconnect the A40 ECU connector.

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A40-8 (IG) - Body ground
    		Engine switch on (IG)
    		10 to 14 V



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - BATTERY)
OK


3.CHECK WIRE HARNESS (CLEARANCE WARNING ECU - BODY GROUND)
E108073E05

  1. Disconnect the A40 ECU connector.

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A40-27 (E) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE CLEARANCE WARNING ECU