Lifan 620. Service manual - part 68

6. SRS warning lamp 
SRS warning lamp can be observed in the instrument cluster, as shown in Fig. 5-6. 

III. Safety rules for air bag maintenance 

During the

 

maintenance of air bag system, unexpected deployment may occur if correct operation 

procedure is not carried out, which shall lead to serious accident. Beyond that, the air bag may fail 
to deploy if the maintenance operation is incorrect. Therefore, please carefully read the following 
notes and take correct operation procedure. 

 

1. Inspection, installation and maintenance shall be carried out by professionals.     
2. Inspecting lamp, common voltmeter and ohmmeter shall not be used during inspection, and 
special voltmeter and ohmmeter (minimal 10kΩ/V) shall be used for measuring voltage and 

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resistance. 
3. Read out the flash DTC (Diagnostic Trouble Code) before removing the battery ground line 
when clear off air bag system fault. 
4. Remove the negative ground line of the battery before carrying out specific maintenance. Then 
wait for over 3min and perform maintenance operation, or the air bag may be unexpectedly 
deployed. The negative electrode removed shall be wrapped with insulating tape for insulation. 

Note:

 Wait for over 3min before carrying out any operation after disconnecting the battery, or the 

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Section II    Diagnosis & Fault Clearing 

 
LF7162 air bag system  can carry out self-diagnosis, and the basic diagnostic procedure is as 
follows: 

 
I. Self-diagnosis of SRS warning lamp circuit 

Passenger Airbag Resistance Low 

tbd 

8016 

Passenger Airbag Short to GND or Cross Coupling 

tbd 

8018 

Passenger Airbag Short to Battery 

tbd 

8019 

Driver Belt Pretensioner Resistance High 

tbd 

8065 

Driver Belt Pretensioner Resistance Low   

tbd 

8064 

Driver Belt Pretensioner Short to GND or Cross Coupling 

tbd 

8066 

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DTC Table 5-1 (Continued) 

DTC Description   

Lifan 

DTC 

Bosch 

DTC in 

EEPROM 

Driver Belt Pretensioner Short to Battery 

tbd 

8067 

Passenger Belt Pretensioner Resistance High 

tbd 

8058 

Passenger Belt Pretensioner Resistance Low 

tbd 

8057 

1 

2 

3 

DAB 

inexistence 

Driver air bag 

module 

Clock spring 

Harness 

Air bag ECU 

1. Preparation before checking; 2. Check the driver air bag circuit, if 

normal, go to the step 3; if not, go to 5; 3. Check the air bag ECU, if 

normal, go to 4; if not, renew the air bag ECU; 4. Check the driver 

air bag module, if normal, the parts with faults have been recovered; 

if not, renew the driver air bag module; 5. Check the clock spring, if 

normal, go to 6; if not, renew the clock spring; 6. Check the harness 

between the air bag ECU and clock spring, if normal, the parts with 

faults have been recovered; if not, repair or renew the harness. 

 

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