Clearance Warning ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the clearance warning ECU.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. INSPECT FUSE (LH-IG)

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

2. 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)

1. Disconnect the Q37 ECU connector.

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

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   IG (Q37-8) - Body ground	Engine switch ON (IG)	10 to 14 V

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

OK

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

1. Disconnect the Q37 ECU connector.

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

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   E (Q37-27) - Body ground	Always	Below 1 Ω

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
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