Illumination Circuit

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (w/o Navigation System): Illumination Circuit
- Illumination Circuit

DESCRIPTION

The radio receiver panel illuminates when the light control switch is set to the TAIL or HEAD position.

WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. INSPECT NIGHTTIME ILLUMINATION

(a) Turn on the light switch and check the nighttime illuminations of the vehicle interior.

Result:





B -- GO TO COMBINATION METER SYSTEM
A -- Continue to next step.

2. CHECK DRIVER SIDE JUNCTION BLOCK (PANEL2 VOLTAGE)

(a) Removed the 2E junction block connector.





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

Standard voltage:





NG -- REPLACE DRIVER SIDE JUNCTION BLOCK
OK -- Continue to next step.

3. CHECK WIRE HARNESS (RADIO RECEIVER - DRIVER SIDE JUNCTION BLOCK AND BODY GROUND)

(a) Disconnect the R3 receiver 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