Page 478 - Workshop Manual - Tunland (2017)

04-340 DIAGNOSTICS - AUDIO SYSTEM

Diagnostic steps

1 . Check the setup of the acoustics unit

(a) Ignition switch: ON
(b) Push the power switch (PWR key) of acoustics unit.
(c) In start-up mode, push PWR key to access the mute function.
04
(d) Set the volume of acoustics unit to over 10VOL.
Check the speakers for sound making?
Yes > Acoustics unit is set up improperly.

No> go to step 2

2 . Check the speakers
(a) Ignition Switch: OFF.
(b) Dismount all speakers. (Refer to “Chapter 66 Audio system - speaker assembly,
replacement”)
(c) Check the speakers for damaged cones.

(d) Use a multimeter to measure the resistance
between pin 1 and pin 2 of the front speaker.
Standard voltage

Multimeter connection Standard value
Standard value 4 Ω

(e) Use a multimeter to measure the resistance
between pin 1 and pin 2 of the rear speaker.
Standard voltage

Multimeter connection Standard value

1-2 4 Ω

Check whether the result is normal?