Page 476 - Workshop Manual - Tunland (2017)

04-338 DIAGNOSTICS - AUDIO SYSTEM

(d) Use a multimeter to measure the voltage
between pin 4 and pin 8, and the voltage
between pin 4 of connector C044 of acoustics
unit and the ground.

Standard voltage

04 Multimeter connection Standard value
C044(4) - C044(8) Battery voltage

C044(4) - ground Battery voltage

Check whether the result is normal?
Yes> go to step 5
No > If battery voltage is unavailable in both cases, repair the open circuit between
F22 (7.5A) to pin 4 of connector C044 of acoustics unit. If battery voltage is not available
only between pin 4 and pin 8 of connector C044 of acoustics unit, repair the open
circuit between pin 4 of connector C044 of acoustics unit and the ground.

5 . Check the power circuit of audio system

(a) Use a multimeter to measure the voltage
between pin 7 of connector C044 of acoustics
unit and the ground.

Standard resistance (check whether there
is short circuit)

Multimeter connection Standard value
C044(7） - ground Battery voltage

Check whether the result is normal?

Yes > Replace the CD/DVD acoustics unit
No > Repair the open circuit between pin 7 of connector C044 of acoustics unit and
the fuse F3 (15A).