Air Bag Control Module: Service and Repair

DIAGNOSIS SENSOR UNIT

Removal and Installation


REMOVAL












WARNING:
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery terminals and wait at least three minutes.
- Before disconnecting the air bag diagnosis sensor unit harness connectors, be sure to disconnect each harness connector of the front shoulder belt pre-tensioners to prevent accidental air bag deployment by static electricity and seat belt pre-tensioner operation.
- Do not use the air tools or electric tools for servicing.
- When replacing the air bag diagnosis sensor unit, always check with the parts department for the 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 pre-tensioners in a collision resulting in serious personal injury or death.
1.Always check the air bag diagnosis sensor unit ECU discriminated number (identification number) or part number using CONSULT.
2.Disconnect both the negative and positive battery terminals, then wait at least three minutes. Refer to PG72, "Removal and Installation (Battery)".
3.Disconnect the harness connector for the following SRS components: "Removal and Installation" Removal And Installation
(Front shoulder belt pre-tensioner LH/RH).
4.Remove the center console. Refer to "Removal and Installation" Removal And Installation.
5.Disconnect the harness connector from air bag diagnosis sensor unit.
6.Remove the air bag diagnosis sensor unit bolts, then remove the air bag diagnosis sensor unit.

CAUTION:





- Do not reuse the air bag diagnosis sensor unit bolts.
- Replace the air bag diagnosis sensor unit if it has been dropped or sustained an impact.
- Do not strike the air bag diagnosis sensor unit.
- Replace the air bag diagnosis sensor unit if any SRS air bag has been deployed or if any front seat belt pre-tensioner has been deployed.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:
- Do not reuse the air bag diagnosis sensor unit bolts.
- The air bag diagnosis sensor unit must always be installed with the label arrow mark "" pointing toward the front of the vehicle for proper operation.
- Do not damage the air bag diagnosis sensor unit harness connectors during installation.
- Be careful not to damage the diagnosis sensor unit harness.
- After installation is complete, check that no system malfunction is detected causing the air bag warning lamp to illuminate.
- If a malfunction is indicated by the air bag warning lamp after repair or replacement of the malfunctioning parts, perform the SRS final check. Refer to "SRS Final Check" SRS Final Check.
- After replacing the air bag diagnosis sensor unit, confirm using CONSULT that the ECU discriminated number (identification number) or part number of the new replacement air bag diagnosis sensor unit matches the ECU discriminated number (identification number) or part number of the replaced (old) air bag diagnosis sensor unit.
NOTE:
If the ECU discriminated number or part number of the new replacement air bag diagnosis sensor unit differs from the ECU discriminated number or part 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.