Diesel Data: Automotive Repair

Radio Receiver Power Source Circuit








AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Radio Receiver Power Source Circuit

Radio Receiver Power Source Circuit

DESCRIPTION

This circuit provides power to the radio receiver.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (DOME, ACC)
(a) Disconnect the DOME fuse from the engine room junction block.
(b) Disconnect the ACC fuse from the driver side junction block.
(c) Measure the resistance of the fuses.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK WIRE HARNESS (RECEIVER - BATTERY AND BODY GROUND)




(a) Disconnect the R3*1 or R6*2 receiver connector.
- *1: for 6 speaker system
- *2: for 9 speaker system
(b) Measure the resistance of the wire harness side connector.
Standard resistance:





(c) Measure the voltage of the wire harness side connector.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE