assembly stops operating when its output exceeds a certain level. When the operation of the stereo component amplifier assembly
stops, the navigation system will not function normally. This is because MOST communication will stop due to the shut down of the
amplifier causing an error in the MOST network. The stereo component amplifier assembly will start operating again when the engine
switch is turned off and back on (ACC) again. However, the amplifier will stop operating again if its output exceeds a certain level.
(for 15 speakers)
* When the stereo component amplifier assembly stops operating and a malfunction occurs in the navigation system due to a
short in a speaker circuit, this DTC will be stored. (for 15 speakers)
HINT
* MOST network cannot be established.
* Errors may occur in MOST communication between devices due to problems such as electrical noise.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CONFIRM MODEL
(a) Choose the model to be inspected.
Result:
B -- CHECK MOST LINE CHECK
A -- Continue to next step.
2. CONFIRM SYMPTOMS
(a) Engine switch off.
(b) Turn the engine switch on (ACC) and check if the audio system activates and if the speakers operate.
HINT
* Choose a source such as radio so that sound can be output from the speakers.
* If sound from the speakers is low, turn up the volume.
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