Control Range Check Of Remote Controller; Check Of Ignition Switch Unlocking Alarm Switch; Body Controller Check; Check Of Automatic Window Closing Of Four Doors By Remote Control - Lifan 620 Maintenance Manual

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If it is the case, proceed to the next step; if not, insufficient battery capacity is indicated, change a
battery with designated specification.
(3) Back inner light check
The back inner light at position ON, check if the light is lit.
The back inner light at position DOOR, check if the light is lit.
If it is in a normal state, proceed to the next step; if not, repair or change the back inner light.

(4) Control range check of remote controller

At 1m away from the driver's door, press the switch of a new or normal remote controller of a same
car model, check if the system is in a normal state.
Hint: The back inner light at position DOOR, press the remote controller switch, the back inner light
will flash again and again.
If it is the case, change the remote controller. If not, proceed to the next step.

(5) Check of ignition switch unlocking alarm switch

During the ignition switch is inserted with key, and the key is then pulled, check the conductivity
between terminals 2 and 1 of the switch, normally from conducted → not conducted.
If it is the case, proceed to the next step; if not, change the ignition switch unlocking alarm switch.

(6) Body controller check

Ignition switch open, pull out the fuel relay and check the conductivity from the fuel control line of
body controller to fuel relay, as well as the voltage between terminal pin BCM (1-4) of fuel control
line of body controller and the body, normally around 10～14V.
If it is in normal condition, proceed to the next step; if not, change the body controller.

(7) Check of automatic window closing of four doors by remote control

Disconnect interface BCM3 of body controller, and check the voltage between central lock power
pin BCM (3-1), steering light power pin BCM (3-35), glass frame riser power pins BCM (3-23) and
BCM (3-32) of body controller terminal, and the body respectively, normally around 10～12V.
Check the resistance between body controller terminals BCM (3-4), BCM (3-9), BCM (3-10) and
BCM (3-27), and the body respectively, normally less than 1Ω. Check the conductivity between
body controller terminals BCM (3-33) and BCM (3-34), and the left front door glass frame riser
motor. Check the conductivity between glass frame riser motors of right front, left rear and right
rear doors, and their corresponding terminal in BCM. If it is normal, proceed to the next step; if not,
repair or change the glass frame riser motor.
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