Air Bag Control Module: Service and Repair

DIAGNOSIS SENSOR UNIT


Removal and Installation


REMOVAL











CAUTION:
- Before servicing, turn ignition switch OFF, disconnect both battery terminals and wait at least three minutes.
- Before disconnecting the air bag sensor unit harness connector, be sure to disconnect the harness connector of each air bag module and pretensioner seat belt to prevent air bag deployment by static electricity.
- Do not use air tools or electric tools for servicing.
- Do not use old bolts after removal; replace with new bolts.
- Do not cause an impact to the diagnosis sensor unit by dropping etc. Replace the diagnosis sensor unit if it has been dropped or sustained an impact.
- Replace the diagnosis sensor unit of deployed SRS air bag and deployed SRS front seat belt pretensioner.
- When replacing the air bag diagnosis sensor unit, always check with the parts department for he latest parts information. Installing an incorrect air bag diagnosis sensor unit may or may not cause the air bag warning lamp to illuminate and may cause incorrect deployment of the supplemental air bags and seat belt pretensioner in a collision resulting in serious personal injury or death.
1. Always check the air bag diagnosis sensor unit ECU discriminated number (identification number) using
CONSULT-III.
2. Disconnect the negative and positive battery terminals, then wait at least three minutes.
3. Disconnect connector of each air bag module and seat belt pretensioner. Refer to Removal And Installation (Driver air bag module), Front Passenger Air Bag Module (Front passenger air bag module), Removal And Installation (Side curtain air bag module), Coupe (Side air bag module), Removal And Installation (Seat belt pretensioner).
4. Remove the center console. Refer to Disassembly And Assembly.
5. Disconnect the diagnosis sensor unit harness connectors.
6. Remove the bolts, then remove the diagnosis sensor unit.

INSTALLATION
Installation is in the reverse order of removal.

CAUTION:
- Be careful not to damage the diagnosis sensor unit harness.
- After the work is completed, make sure no system malfunction is detected by air bag warning lamp.
- In case a malfunction is detected by the air bag warning lamp, reset by the self-diagnosis function and delete the memory by CONSULT-III.
- If a malfunction is still detected after the above operation, perform self-diagnosis to repair malfunctions. Refer to Component Tests and General Diagnostics.
- After replacing the air bag diagnosis sensor unit, confirm using CONSULT-III that the ECU discriminated number (identification number) of the new replacement air bag diagnosis sensor unit matches the ECU discriminated number (identification number) of the replaced (old) air bag diagnosis sensor unit.

NOTE:
If the ECU discriminated number of the new replacement air bag diagnosis sensor unit differs from the ECU discriminated number of the replaced air bag diagnosis sensor unit, reconfirm the parts information and verify that the correct air bag diagnosis sensor unit was installed.