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Problem Symptoms Table

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Audio Function: 

PROBLEM SYMPTOMS TABLE

Symptom Suspected area
Pressing power switch does not turn on system. PRESSING POWER SWITCH DOES NOT TURN ON SYSTEM 
RADIO RECEIVER POWER SOURCE CIRCUIT 
AVC-LAN CIRCUIT 
RADIO RECEIVER 
Panel switch does not function. STEERING PAD SWITCH CIRCUIT 
AVC-LAN CIRCUIT 
RADIO RECEIVER 
No sound can be heard from speakers. (Audio is mute.) AVC-LAN CIRCUIT 
RADIO RECEIVER POWER SOURCE CIRCUIT 
NO SOUND CAN BE HEARD FROM SPEAKERS 
STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT 
SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER 
MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND TELEVISION DISPLAY ASSEMBLY  ((1))
SPEAKER CIRCUIT 
MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER 
STEREO COMPONENT AMPLIFIER 
RADIO RECEIVER 
Sound quality is bad in all modes. (Volume is too low.) POOR SOUND QUALITY IN ALL MODES (LOW VOLUME) 
SPEAKER CIRCUIT 
SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER 
MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER 
STEREO COMPONENT AMPLIFIER 
RADIO RECEIVER 
ASL does not function. VEHICLE SPEED SIGNAL CIRCUIT BETWEEN STEREO COMPONENT AMPLIFIER AND COMBINATION METER 
Abnormal noise occurs. NOISE OCCURS 
STEREO COMPONENT AMPLIFIER 
RADIO RECEIVER 
Radio broadcast cannot be received or poor reception. RADIO BROADCAST CANNOT BE RECEIVED OR POOR RECEPTION 
CD cannot be inserted/played or CD is ejected right after insertion. RADIO RECEIVER POWER SOURCE CIRCUIT 
CD CANNOT BE INSERTED/PLAYED OR CD IS EJECTED RIGHT AFTER INSERTION 
CD cannot be ejected. RADIO RECEIVER POWER SOURCE CIRCUIT 
CD CANNOT BE EJECTED 
Sound quality is bad only when CD is played. (Volume is too low.) SOUND QUALITY IS BAD ONLY WHEN CD IS PLAYED (VOLUME IS TOO LOW) 
CD sound skips. CD SOUND SKIPS 
Cassette tape cannot be inserted or played. RADIO RECEIVER POWER SOURCE CIRCUIT 
CASSETTE TAPE CANNOT BE INSERTED OR PLAYED 
Cassette tape cannot be ejected. RADIO RECEIVER POWER SOURCE CIRCUIT 
CASSETTE TAPE CANNOT BE EJECTED 
Sound quality is bad only when playing tape. SOUND QUALITY IS BAD ONLY WHEN PLAYING TAPE 
Tape is tangled due to incorrect tape speed or auto-reverse malfunction. TAPE IS TANGLED DUE TO INCORRECT TAPE SPEED OR AUTO-REVERSE MALFUNCTION 
Radio receiver cannot be dimmed at night. DIMMER SIGNAL CIRCUIT 
RADIO RECEIVER 
Radio receiver cannot be illuminated at night. ILLUMINATION CIRCUIT 
RSE sound cannot be heard or sound quality is bad. ((1)) RADIO RECEIVER POWER SOURCE CIRCUIT 
TELEVISION DISPLAY POWER SOURCE CIRCUIT 
SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND TELEVISION DISPLAY ASSEMBLY 
MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND TELEVISION DISPLAY ASSEMBLY 
RADIO RECEIVER 
TELEVISION DISPLAY 
(1) with Rear Seat Entertainment System

Steering Pad Switch Function: 

PROBLEM SYMPTOMS TABLE

Symptom Suspected area
Audio system cannot be operated with steering pad switch. STEERING PAD SWITCH CIRCUIT 
RADIO RECEIVER 
Steering pad switch cannot be illuminated at night. ILLUMINATION CIRCUIT