AFS ECU Power Source Circuit

LIGHTING: LIGHTING SYSTEM: AFS ECU Power Source Circuit
- AFS ECU Power Source Circuit

DESCRIPTION

This circuit detects the state of the power switch. The AFS ECU receives it from the power switch.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK AFS ECU





(a) Measure the voltage of the connector.

Standard voltage:





OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.

2. CHECK WIRE HARNESS (ECU - BODY GROUND)





(a) Disconnect the A29 ECU connector.

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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK WIRE HARNESS (ECU - BATTERY)





(a) Disconnect the A29 connector.

(b) Measure the voltage of the connector.

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE AFS ECU