Diagnosis Description
HANDS-FREE PHONE SYSTEM ON BOARD DIAGNOSIS
During on board diagnosis the diagnosis function of TEL adapter unit starts with the operation of the steering switch and performs the diagnosis when ignition switch ACC.
ON BOARD DIAGNOSIS ITEM
The on board diagnosis has 3 modes: the self-diagnosis mode that performs the trouble diagnosis, the speaker adaptation data deleting mode and the hands-free phone system initialization mode.
- Perform the diagnosis with the vehicle stopped.
- Perform STEP2 if necessary.
| STEP | MODE | Description |
|---|---|---|
| STEP1 | Self-diagnosis | The self-diagnosis mode performs the microphone test and the diagnosis of TEL adapter unit, TEL antenna and steering unit, and then reads out the results with the sound and indicates them on the display. |
| STEP2 | Speaker adaptation data deleting | The speaker adaptation data deleting mode can delete the speaker adaptation data. |
| Hands-free phone system initialization | Hands-free phone system initialization mode can perform the initialization of hands-free phone system. |
SELF-DIAGNOSIS RESULTS
Self-diagnosis mode reads out the self-diagnosis results and indicates DTC on the display.
- Error count is read out simultaneously when reading out the DTC name.
- The errors are read out continuously when some errors occur at the same time. The DTC displays are combined and displayed. For example, DTC 01100 is displayed when DTC 01000 and DTC 00100 are indicated at the same time.
Self-diagnosis results
| DTC | DTC name | Possible causes |
|---|---|---|
| DTC 10000 | INTERNAL FAILURE | TEL adapter unit |
| DTC 01000 | ANT. SHORT TO BATT OR OPEN | TEL antenna |
| DTC 00100 | ANT. SHORT TO GROUND | |
| DTC 00010 | STEERING REMOTE BUTTON STUCK A | Steering switch |
| DTC 00001 | STEERING REMOTE BUTTON STUCK B | |
| DTC 00000 | THERE ARE NO FAILURE RECORDS TO REPORT | - |
The details of error count
The error count guides "0" when the error occurs. The next time it counts up "1" if it is normal with the ignition switch ON. It continues the count up unless the initialization of hands-free phone system is performed.
FLOW CHART OF TROUBLE DIAGNOSIS