Removal And Installation Of Air Bag Ecu Assembly; Notes For Removal, Installation And Maintenance Of Driver Air Bag Module (Dab) - Lifan 620 Maintenance Manual

www.CarGeek.ir
Section IV Removal and Installation
During the process of repair for LF7162 air bag system, removal and installation of driver air bag
module, front passenger air bag module, air bag clock spring, air bag ECU and air bag harness
may be involved. Some removal processes and notes are introduced as follows.
Note: Make the following preparations before removal and installation:
1. Locate the ignition switch in position ON, and encrypt the air bag SRS ECU with diagnostic
instrument.
2. Locate the ignition switch in position LOCK.
3. Remove the negative ground wire from the battery and wait for at least 3min.
I. Removal and installation of air bag ECU assembly
Note: Forbid to open the housing of air bag ECU assembly unless absolutely necessary. The
integrated circuit may be damaged in the case of contacting with its terminal.
1. Tips for removal of air bag ECU assembly
(1) Unplug the interface. Note: Unplug the interface under the state of installation for ECU
assembly.
(2) Remove the screws with wrench and take off the air bag ECU assembly.
2. Tips for installation of air bag ECU assembly
(1) Install the air bag ECU assembly with wrench in the correct direction. Note: Make sure the
tightening torque is 8 N·m.
(2) Connect the interface.
3. Check after installation
After installation, check the air bag ECU assembly for its tightness.
II. Notes for removal, installation and maintenance of driver air bag module
(DAB)
1. Removal process and notes
(1) Locate the ignition switch in position LOCK.
(2) Disconnect the battery negative cable for more than 3min.
(3) Remove the two hexagon flange bolts at the left and right sides of steering wheel hub.
(4) Pull the driver air bag module from the steering wheel, and disconnect the interface of clock
spring with the terminal of gas generator.
Note: The black spring plate should be picked up with a minitype flat tip screwdriver.
(5) Disconnect the interface of horn wire, and take out the air bag module. Removal is finished.
Note: Take care not to haul the air bag harness when removing the driver air bag module and
keep the ornamental cap upwards when storing the module. Disassembling the driver air bag
module is not allowed. Do not knock the air bag module. If knocked, install a new one. Forbid
exposing the module under the temperature over 90°C, and contact with lubricants, lubricant
grease as well as water. Seal the old module removed in a sealing bag, and return it to Lifan
Passenger Car Co., Ltd.
285
www.cargeek.ir