Removal Procedure
- Disable the SIR system. Refer to SIR Disabling and Enabling and to SIR Disabling and Enabling .
- Remove off road skid plate, if equipped.
- Remove the connector position assurance (CPA) from the inflatable restraint front end discriminating sensor harness connector.
- Disconnect the inflatable restraint front end discriminating sensor harness connector from the sensor.
- Drill out the mounting rivets.
- Remove the inflatable restraint front end discriminating sensor from the vehicle.
- Perform the following steps in order to complete the first fastener repair:
- Perform the following steps in order to complete the second fastener repair:
Caution: Refer to SIR Caution in the Preface section.
Caution: Do not strike or jolt the inflatable restraint front end sensor. Before applying power to the front end sensor make sure that it is securely fastened. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.
Important: The following procedures should be utilized in the event that sensor mounting holes or fasteners are damaged to the extent that the sensor can no longer be properly mounted.
| 7.1. | Remove and discard the improperly installed rivet. |
| 7.2. | Reattach sensor with new rivet. |
| 8.1. | Remove the improperly installed rivet. |
| 8.2. | Enlarge the mounting holes (1) in the lower radiator support to 9.0 mm (0.35 in). |
| 8.3. | Insert and properly seat the rivnut. |
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
| 8.4. | Install sensor with screw. |
Tighten
Tighten fasteners to 8.0 N·m (71 lb in).
Installation Procedure
- Remove any dirt, grease, or other impurities from the mounting surface.
- Install the inflatable restraint front end discriminating sensor horizontally to the lower radiator support surface.
- Install the inflatable restraint front end discriminating sensor mounting rivets (GM P/N 15715058).
- Connect the inflatable restraint front end discriminating sensor harness connector to the sensor.
- Install the connector position assurance (CPA) to the inflatable restraint front end discriminating sensor harness connector.
- Install the off road skid plate, in equipped.
- Enable the SIR system. Refer to SIR Disabling and Enabling and to SIR Disabling and Enabling .
Ensure that the arrow is pointing toward the front of the vehicle.
