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Home >> Lexus >> 2008 >> LX 570 V8-5.7L (3UR-FE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Radio, Stereo, and Compact Disc >> Testing and Inspection >> Component Tests and General Diagnostics >> Satellite Radio Tuner Power Source Circuit

Satellite Radio Tuner Power Source Circuit









AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: Satellite Radio Tuner Power Source Circuit

Satellite Radio Tuner Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the stereo component tuner.
HINT:
- "Satellite Radio Tuner" refers to the stereo component tuner.
- Only vehicles with a navigation system have this circuit.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ACC, RAD NO. 1)
(a) Remove the ACC fuse from the main body ECU.
(b) Remove the RAD NO. 1 fuse from the engine room relay 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 (STEREO COMPONENT TUNER - BATTERY AND BODY GROUND)





(a) Disconnect the L37 tuner connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:






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