Hummer H2. Manual — part 2070

Fig. 23: SIR Fuse & Underhood Fuse Block
Courtesy of GENERAL MOTORS CORP.

6. Install the SIR Fuse (1) into the underhood fuse block.

7. Staying well away from all air bags, turn ON the ignition, with the engine OFF.

1. The AIR BAG indicator will flash 7 times.

2. The AIR BAG indicator will then turn OFF.

8. Perform the Diagnostic System Check - SIR if the AIR BAG indicator does not operate as described.

INFLATABLE RESTRAINT FRONT END SENSOR REPLACEMENT

Removal Procedure

CAUTION: Refer to SIR Caution in Cautions and Notices.

2004 Hummer H2

2004 RESTRAINTS SIR - Hummer H2

1. Disable the SIR system. Refer to sir disabling and enabling zones. Refer to SIR Disabling and Enabling

Zones .

2. Remove the engine protection shield, if equipped. Refer to Engine Protection Shield Replacement in

Frame and Underbody.

Fig. 24: CPA & Inflatable Restraint Front End Discriminator Sensor Harness Connector
Courtesy of GENERAL MOTORS CORP.

3. Remove the connector position assurance (CPA) from the inflatable restraint front end discriminator

sensor harness connector.

2004 Hummer H2

2004 RESTRAINTS SIR - Hummer H2

Fig. 25: Inflatable Restraint Front End Discriminating Sensor Harness Connector
Courtesy of GENERAL MOTORS CORP.

4. Disconnect the inflatable restraint front end discriminating sensor harness connector from the sensor.

2004 Hummer H2

2004 RESTRAINTS SIR - Hummer H2

Fig. 26: CPA & EFS Connectors Located On The Frame Crossmember
Courtesy of GENERAL MOTORS CORP.

5. Remove the mounting fasteners.

6. Remove the inflatable restraint front end discriminating sensor from the vehicle.

7. Perform the following steps in order to complete the fastener repair:

1. Remove and discard the improperly installed fastener.

IMPORTANT: The following procedure should be utilized in the event that the sensor

mounting holes or fasteners are damaged to the extent that the sensor
may no longer be properly mounted.

2004 Hummer H2

2004 RESTRAINTS SIR - Hummer H2