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