Maintenance of electrical applicances
22-66
Pins The definition of pins 4LOOP 6LOOP
37 The passenger side belt buckle switch × ×
38 The short bar ● ●
39 The short bar ● ●
40
The invalidation switch low end for the passenger
safety air bag
× ×
41 The short bar ● ●
42 The short bar ● ●
43 The short bar ● ●
44 The short bar ● ●
45 The collision sensor at the side of the driver, low × ●
46 The collision sensor at the side of the driver, high × ●
47 × × ×
48 × × ×
49 × × ×
50 × × ×
Notes: ×indicates not being used, ● indicates being used.
7.2 The inspection for the safety air bag system
Before the inspection of the safety air bag system, it needs using multi-meter to check the vehicle’s
battery voltage, and confirm its voltage working in normal scope. The working voltage required for the
air bag safety system is 10V to 16V.
Warning: Only the fault diagnostic apparatus can be used for inspecting the safety air bag
system, it does not permit using other apparatus to inspect the safety air bag system.
(1) Use the alarm light for inspection
The safety air bag alarm light is on the vehicle instrument panel, through the change of the light, it
indicates the working state of the safety air bag system. In general situation, when the vehicle key is
turned to ON, the safety air bag alarm light shall start blinking, after blinking for 6 times, the alarm light
shall be off, and it shall not be on only the key is open for the next time. If it is not this situation, it
indicates the safety air bag system has the fault, it needs to be inspected.
①The alarm light is not on or is always on
Place the ignition switch at ON position, if the safety air bag alarm light is not on from the very start or
is always on from the very start, it indicates that the safety air bag alarm light is in fault, or the line is in
fault, it is possible that the air bag wiring harness is not connected. These faults generally do not
belong to the fault inside the safety air bag system, the alarm light and the line shall be repaired
according to the repair method for the vehicle electrical appliances.
②The alarm light is always on after the blink
After the safety air bag alarm light is on, it shall be off after blinking for about 6sec. Then it shall be
continuously on. It indicates that safety air bag system has the fault, it needs to be repaired well.
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