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Power Source Circuit





LIGHTING (EXT): LIGHTING SYSTEM: Power Source Circuit
- Power Source Circuit

DESCRIPTION

This circuit detects the state of the ignition switch, and sends it to the daytime running light relay.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ECU-IG NO. 1, ECU-B)

(a) Remove the ECU-IG No. 1 fuse from the instrument panel junction block.

(b) Remove the ECU-B fuse from the engine room relay block and junction block.

(c) 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 (BATTERY - DAYTIME RUNNING LIGHT RELAY)

(a) Disconnect the E42 daytime running light relay connector.





(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





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

3. CHECK HARNESS AND CONNECTOR (DAYTIME RUNNING LIGHT RELAY - BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below.





Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

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