AUDIO SYSTEM
Symptom Table
RELATED TO AUDIO
Symptoms |
Check items |
Probable malfunction location |
The disk cannot be removed | Audio unit | Malfunction in audio unit. Refer to AV-18, "On Board Diagnosis Function". |
No sound comes out or the level of the sound is low. | No sound from all speakers. |
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Only a certain speaker (front tweeter LH, front tweeter RH, front door speaker LH, front door speaker RH, rear door speaker LH, rear door speaker RH) does not output sound. |
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Noise is mixed with audio. | Noise comes out from all speakers. | Malfunction in audio unit. Refer to AV-18, "On Board Diagnosis Function". |
Noise comes out only from a certain speaker (front tweeter LH, front tweeter RH, front door speaker LH, front door speaker RH, rear door speaker LH, rear door speaker RH). |
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Noise is mixed with radio only (when the vehicle hits a bump or while driving over bad roads) | Poor connector connection of antenna or
antenna feeder. Refer to AV-73, "Feeder Layout". |
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No radio reception or poor reception. |
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No satellite radio reception. | Satellite radio antenna malfunction. |
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Buzz/rattle sound from speaker | The majority of buzz/rattle sounds are not indicative of an issue with the speaker, usually something nearby the speaker is causing the buzz/rattle. | Refer to "SQUEAK AND RATTLE TROUBLE DIAGNOSIS" in the appropriate interior trim section. |
RELATED TO HANDS-FREE PHONE
Check Compatibility
NOTE: The customer’s phone may be required, depending upon their concern.
NOTE: It is necessary to know the service provider. On occasion, a given phone may be on the approved list with one provider, but may not be on the approved list with other providers.
RELATED TO REAR VIEW CAMERA
NORMAL OPERATING CONDITION
Description
RELATED TO NOISE
The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference, etc.).
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
Normal operating condition
Description
FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)
If the engine speed is above 1,800 rpm under no load (for example, the
selector lever position is neutral and
engine speed is over 1,800 rpm) fuel will be cut off after some time. The exact
time when the fuel is cut off varies
b ...
Engine compartment
CAUTIONNever use a fuse of a higher or lower
amperage rating than specified on the
fuse box cover. This could damage the
electrical system or cause a fire.
Two types of fuses are used. Type A is used in
the fuse boxes in the engine compartment. Type
B is used in the passe ...
U1040 ENG comm circuit
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
U1040
ENG COMM CIRCUIT
(Engine communication circuit)
ECM cannot transmit a communication signal to generator.
POSSIBLE CAUSE
Harne ...