NO.4 SOUND JUMPS [CD PLAYER/CHANGER]

id0903e5806200

4

Sound jumps

Possible DTC

Using the M-MDS

B1188:64

Without using M-MDS (On-board diagnostic test mode)

Audio unit (without display)

03:Er07

Audio unit (with display)

Device code 22/error code 07

Car-navigation unit

Device code 22/error code 07
Possible cause
•  Defective CD (e.g., cracked, badly bent, rough edges, scratch, dirty CD, condensation)
•  Improper audio unit installation (e.g., rattle, loose)
•  Inadequate tire pressure
•  Audio unit/car-navigation unit malfunction
Note
•  The CD may be malfunctioning if the sound jumps on the certain CD only. Inspect the CD player/changer operation using the CD known to be good.

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Does the sound jump when the vehicle is stopped?
Yes
Go to Step 6.
No
Go to the next step.
2
•  Drive the vehicle.
•  Does the sound jump when driving over uneven surfaces?
Yes
Go to the next step.
No
Go to Step 6.
3
•  Is the audio unit installed securely?
Yes
Go to the next step.
No
Install the audio unit securely.
4
•  Inspect the tire pressure.
•  Is the tire pressure normal?
Yes
Replace the audio unit/car-navigation unit.
(See AUDIO UNIT REMOVAL/INSTALLATION.)
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
No
Go to the next step.
5
•  Adjust the tire pressure within specification.
•  Does the sound jump when driving the vehicle?
Yes
Replace the audio unit/car-navigation unit.
(See AUDIO UNIT REMOVAL/INSTALLATION.)
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
No
Audio system is normal. Explain repairs to the customers.
6
•  Replace the CD known to be good.
•  Does the sound jump when driving the vehicle?
Yes
Replace the audio unit/car-navigation unit.
(See AUDIO UNIT REMOVAL/INSTALLATION.)
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
No
Audio system is normal. Explain to the customer that the CD is malfunctioning.