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Removal and Installation
warningAlways observe the following items for preventing accidental activation.
  • Before servicing, ignition switch OFF, disconnect main battery negative terminal and wait for 3 minutes or more (discharges electricity held in the additional power supply circuit of the air bag diagnosis sensor unit).
  • Always work from the side of air bag module. Never work in front of it.
 
 
REMOVAL
 
 
1. From the holes on left, right and lower of steering wheel, check the position of torsion spring secure the driver air bag module.
: Vehicle front
2. Insert remover tool (A) into a hole of the steering wheel, and then press and disengage torsion spring .
: Vehicle front
3. Remove remaining springs in numerical order from 1 to 2.
4. Disconnect driver air bag module harness connectors and horn switch harness terminal .
caution
  • For installing/removing the driver air bag module harness connector, insert thin screwdriver wrapped in tape into notch, lift lock and remove connector.
  • Install connector with lock raised, and push lock into the connector.
  • After installing the connector, check that the lock is pushed securely into it.
5. Remove driver air bag module.
caution
  • To prevent accidental explosion, always place the driver air bag module with pad side facing upward.
    : Upward
  • To prevent damage to the parts, never impact the driver air bag module.
  • Replace driver air bag module if it has been dropped or sustained an impact.
  • To prevent accidental explosion, never insert any foreign objects (screwdriver, etc.) into the driver air bag module.
  • To prevent accidental explosion, never disassemble the driver air bag module.
  • To prevent accidental explosion, never expose the driver air bag module to temperatures exceeding 90 °C (194 °F).
  • To prevent damage to the parts, never allow oil, grease, detergent, or water to come in contact with the driver air bag module.
 
 
INSTALLATION
Note the following items, and install in the reverse order of removal.
caution
  • Fix the driver air bag module harnesses to the harness fixing hook .
  • Press driver air bag module until it snaps into place with a clicking sound.
  • Check that horn does not sound when driver air bag module is not pressed.
  • Never damage the harness while installing.
  • After installation is completed, perform self-diagnosis using M.U.T.-III SE or air bag warning light, if the system is normal and ″PAST″ of ″Self Diagnostic Result″ is indicated, always perform ″ERASE″ of″Self Diagnostic Result″ using M.U.T.-III SE. Refer to Work FlowWork Flow.
  • After the work is completed, check that no system malfunction is detected by air bag warning light in the user mode.