Headlight Leveling ECU Power Source Circuit

LIGHTING: LIGHTING SYSTEM: Headlight Leveling ECU Power Source Circuit
- Headlight Leveling ECU Power Source Circuit

DESCRIPTION

This circuit detects the state of the engine switch. The headlight beam level control ECU receives it from the engine switch.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (H-LP LVL)

(a) Remove the H-LP LVL fuse from the cowl side junction block RH.

(b) Measure the resistance of the fuse.

Standard resistance:

Below 1 Ohms

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

2. CHECK WIRE HARNESS (HEADLIGHT BEAM LEVEL CONTROL ECU - BATTERY AND BODY GROUND)

(a) Disconnect the A43 ECU connector.





(b) Measure the voltage and resistance of the wire harness side connector.

Standard voltage:





Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE