DTC: 09-Er21; AUDIO UNIT INTERNAL MALFUNCTION: Notes
DETECTION CONDITION AND PAUSIBLE CAUSES
| Description |
Audio unit internal malfunction |
| Detection condition |
- Audio unit internal ECU (Power amplifier peripheral circuit) is faulted.
- Audio unit protection function operates due to short to ground in speaker wiring harness and speaker lead wire
|
| Fail-safe |
Not applicable |
| Possible cause |
- Audio unit connector or terminals malfunction
- Speaker connector or terminals malfunction
- Short to ground in wiring harness between the following terminals:
- Audio unit terminal 1A-Front door speaker (LH) terminal C
- Audio unit terminal 1C-Front door speaker (LH) terminal B
- Audio unit terminal 1D-Front door speaker (RH) terminal C
- Audio unit terminal 1F-Front door speaker (RH) terminal B
- Audio unit terminal 1S-Rear door speaker (LH) terminal C
- Audio unit terminal 1U-Rear door speaker (LH) terminal B
- Audio unit terminal 1V-Rear door speaker (RH) terminal C
- Audio unit terminal 1X-Rear door speaker (RH) terminal B
- Open circuit in wiring harness between the following terminals:
- Audio unit terminal 1A-Front door speaker (LH) terminal C
- Audio unit terminal 1C-Front door speaker (LH) terminal B
- Audio unit terminal 1D-Front door speaker (RH) terminal C
- Audio unit terminal 1F-Front door speaker (RH) terminal B
- Audio unit terminal 1S-Rear door speaker (LH) terminal C
- Audio unit terminal 1U-Rear door speaker (LH) terminal B
- Audio unit terminal 1V-Rear door speaker (RH) terminal C
- Audio unit terminal 1X-Rear door speaker (RH) terminal B
- Speaker malfunction
- Audio unit malfunction
|
Courtesy of MAZDA MOTORS CORP.