Lifan 620. Manual — part 64

III. Fault Table of Audio System

Table 4-21

Fault

Cause

Fault

Cause

Press down power switch,

audio system does not

work

1. Fault in audio system power

circuit

2. Fault in CD player assembly

Audio system night

illumination system can not

work

1. Fault in audio

system illumination

circuit

2. Fault in CD player

assembly

257

IV. Audio system component check

258

(3) Check speaker
Disconnect speaker connector, test the resistance between speaker terminals, the resistance shall
be 2~9Ω. If it is normal, proceed to the next step; if not, replace speaker.
(4) Check connector between audio system and speaker
If it is normal, proceed to the next step; if not, repair or replace wiring and connector.
(5) Check CD player assembly
①

Test the voltage between audio system assembly connector terminal A7 and vehicle body, the

voltage shall be 10~14V.
②

Test the voltage between audio system assembly connector terminal A8 and vehicle body, the

voltage shall be less than 1Ω.
③

259

(4) Check the installation of CD player assembly
If it is normal, fault of CD disk exists; if not, proceed to the next step.
(5) Check CD player assembly
①

Check the voltage between audio system assembly connector terminal A7 and vehicle body,

the voltage shall be 10~14V.

Check the resistance between audio system assembly connector terminal A8 and vehicle body,

②
the resistance shall be less than 1Ω.

Turn ignition switch to ACC, check the vo

③

ltage between audio system assembly connector

Test the voltage between audio system assembly connector terminal A7 and vehicle body, the

voltage shall be 10~14V.
②

Test the voltage between audio system assembly connector terminal A8 and vehicle body, the

voltage shall be less than 1Ω.
③

Turn ignition switch to ACC, test the voltage between audio system assembly connector

terminal A4 and vehicle body, the voltage shall be 10~14V. If it is normal, proceed to the next step;
if not, repair or replace wiring and connector.

260