Reading and Clearing Diagnostic Trouble Codes
AV Switch Self-Diagnosis FunctionIt can check ON/OFF operation of each switch in the audio unit (without NAVI) or AV switch (with NAVI) and diagnose the input signals from the steering switch (with NAVI) (except TRIP on the steering wheel audio control switch).
STARTING THE SELF-DIAGNOSIS MODE (WITHOUT NAVI)
1. Turn ignition switch from OFF to ACC.
2. Press and hold the "CLOCK" switch and turn the volume control dial clockwise or counterclockwise for 30 clicks or more. Then the self-diagnosis initiates.
3. Initially, all display segments will be illuminated.
4. Then the current software version will be displayed when the "TUNE UP" switch is pressed.
5. Then a speaker check will occur when the "TUNE DOWN" switch is pressed. The audio unit will send a series of three beeps to each speaker channel in the following sequence: FR.FL.RL.RR. This check will continue until any switch (except "TUNE UP", "TUNE DOWN" or volume) is operated.
6. Press each audio unit switch (except "TUNE UP", "TUNE DOWN" or volume). When each switch is pressed, a series of three beeps will sound.
NOTE: Steering wheel audio control switches (except base), "TUNE UP", "TUNE DOWN" and volume switches are not included in this test.
STARTING THE SELF-DIAGNOSIS MODE (WITH NAVI)
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the switches "PAUSE/MUTE" and "PREV" simultaneously for 3 seconds. Then the self-diagnosis initiates. A single beep indicates selfdiagnosis mode is active.
3. Press each switch and listen for beep.
NOTE: TRIP button on steering wheel audio control switch and CD player LOAD and EJECT buttons are not included in this test and will not beep when pressed.
EXITING THE SELF-DIAGNOSIS MODE
- Turn ignition switch OFF. Then the self-diagnosis ends. On models without NAVI, pressing the volume switch will also exit the self-diagnosis mode.
DIAGNOSIS FUNCTION
- It can check for continuity of the switches by sounding the beep(s) when each audio unit switch (without NAVI) or AV switch (with NAVI) and steering switch (with NAVI) is pressed.
- It can check for harness continuity between AV switch and steering switch (with NAVI).