Description
The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference, etc.).
NOISE
The following noise results from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other sources. It is not a malfunction.
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and operation of each piece of electrical equipment, and determine the cause.
NOTE: The source of the noise can be found easily by listening to the noise while removing the fuses of electrical components, one by one.
Type of Noise and Possible Cause

RELATED TO HANDS-FREE PHONE
| Symptom | Cause and Counter measure |
| Does not recognize cellular phone connection (No connection is displayed on the display at the guide). | Some Bluetooth enabled cellular phones may not be recognized by
the in-vehicle phone module.
Refer to "RELATED TO HANDS-FREE PHONE (Check Compatibility)" in AV-304, "Symptom Table". |
| Cannot use hands-free phone. |
Customer will not be able to use a hands-free phone under the following conditions:
NOTE: While a cellular phone is connected through the Bluetooth wireless connection, the battery power of the cellular phone may discharge quicker than usual. The Bluetooth Hands-Free Phone System cannot charge cellular phones. |
| The other party's voice cannot be heard by hands-free phone. | When the radio wave condition is not ideal or ambient sound is too loud, it may be difficult to hear the other person's voice during a call. |
| Poor sound quality. | Do not place the cellular phone in an area surrounded by metal or far away from the in-vehicle phone module to prevent tone quality degradation and wireless connection disruption. |
Audio system
PrecautionPower window and door lock/unlock switch RH
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH
Fail Safe
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal
that detects up/down speed and
direction of door glass. Switches to fail-safe con ...
Battery
How to Handle Battery
CAUTION:
If it becomes necessary to start the engine with a booster
battery and jumper cables, use a 12-volt
booster battery.
After connecting battery cables, ensure that they are tightly
clamped to battery terminals for good
contact.
Never add distilled wa ...
Insufficient cooling
Component Function Check
Symptom
Insufficient cooling
No cool air comes out. (Airflow volume is normal.)
INSPECTION FLOW
1. CONFIRM SYMPTOM BY PERFORMING OPERATION CHECK - TEMPERATURE DECREASE
Press the AUTO switch.
Turn temperature control switch (driver side) counterclockwise
u ...