Active Noise Control Unit Base Audio Without Navigation

DIAGNOSIS SYSTEM (ACTIVE NOISE CONTROL UNIT)


On Board Diagnosis Function


ON BOARD DIAGNOSIS ITEM
Starting with the operation of the door switch, the Self-diagnosis function allows the diagnoses of the active noise control unit internal circuit, the input state of each signal, and a microphone connection state. The diagnosis results are indicated by a sound.

METHOD OF STARTING
Perform Self-diagnosis, according to the following steps:





- When a sound is not outputted from the speakers as a result of the preparation, check the AV control unit, active noise control unit, connector connections, or speakers.
- When Self-diagnosis mode does not start at Step 1, check the door state signal circuit.
- When a malfunction is detected in the microphone at Step 8, check the signal circuit of each microphone.
- When an error is detected in an engine speed signal at Step 10, check the engine speed signal circuit.