Lifan 620. Service manual - part 56

 

Table 4-10 

Testing terminal 

Wire color 

Terminal description 

Test condition 

Standard value 

(2-1)－body 

U/W 

Unlocking of central 

control switch 

Active low 

Less than 1Ω 

(2-2)－body 

G/U 

Locking of central 

control switch 

Active low 

Less than 1Ω 

(2-17)－body 

W 

Remote control 

receiving antenna of 

Always Less 

than 

1Ω 

 

 

 

V. Burglar alarm 

During alert state, if the key is inserted into ignition lock, ignition switch short-connected, four 
doors and backdoor open, then the fuel control output is inactivated, the annunciator sounds 
continuously and steering light flashes; after 20 seconds, the annunciator stops, only flash 
continues; after another 10 seconds, flash stops; alarm can only be stopped by pressing unlocking 
key, after which, the ignition switch recovers its control over oil passage. 
 
For central lock trouble symptoms of body control module, refer to Table 4-11. 

 

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Table 4-11 

Symptom Cause 

Symptom Cause 

Door lock control 

system does not 

work 

1 Faulty power supply fuse 

2 Faulty body control module   

3 Faulty wiring 

Door lock locking/unlocking 

fault (apply central control 

switch and key) 

1 Faulty air conditioning 

controller 

2 Faulty body control module 

3 Faulty wiring   

4 Faulty door key 

locking/unlocking switch 

1 Faulty body control module 

①

 

③

 

Left front door central lock actuator 

 

Fig. 4-51 

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①

 

②

Press the key on remote controller for three times and check if the LED on the controller flashes 

for three times as well; if press the key and hold on, the LED should light constantly. Note: If press 
the key for more than three times and the LED still does not light up, a dead battery might be the 
case. 
2) Automatic locking check 

 

①

When the car is at burglar alarm state, press the unlocking key on remote controller, if no door 

is opened within 30 seconds upon unlocking, automatic locking of all doors will be implemented, 
burglar alarm be activated again, steering light not flash, and annunciator not sound. 

 Under the condition above, if 

②

any door is opened within 30 seconds upon unlocking, automatic 

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locking of all doors will not be implemented. 
3) Security check 

 When the key is inserted into the ignition lock cylinder and the lock

①

ing or unlocking key on 

remote controller is pressed, no door lock will be locked or unlocked. 

 

②

If an unregistered remote controlled is applied for operation, then the door lock should not be 

locked or unlocked; when an registered remote controller is applied, the door lock should be 
available for locking and unlocking. 
4) When the key is not inserted into the ignition lock cylinder, and the door is open or ajar, close 
the door by remote control, the door lock will be locked with a warning generated. 
5) Steering signal lamp flash check 

①

②

 

③

④

⑤

⑥

⑦

 

⑧

Press the luggage boot key on remote controller (EX): Under alert state, first disarm and then 

unlock the luggage boot. If unlocking is not implemented within 60 seconds and luggage boot is 
not closed, the steering light flashes to indicate probable wrong opening. The flash stops upon 
unlocking or closing of luggage boot. 
If it is qualified for the conditions aforesaid, then the system is in a normal state; if not, proceed to 
the next step. 
(2) Remote controller battery check 
Upon pressing the remote controller switch three times, the LED of remote controller should light 
for three times. 

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