Caution: Be careful when you handle a sensor. Do not strike or jolt a sensor.
Before applying power to a sensor:
• Remove any dirt, grease, etc. from the mounting surface. • Position the sensor horizontally on the mounting surface. • Point the arrow on the sensor toward the front of the vehicle. • Tighten all of the sensor fasteners and sensor bracket fasteners
to the specified torque value.
Removal Procedure
- Disable the SIR system. Refer to Disabling the SIR System .
- Remove off road skid plate, if equipped.
- Remove the connector position asssurance (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:
- Install the sensor with the screw.
Important: Utilize the first fastener repair and the second fastener repair in the event that the sensor mounting holes or fasteners are damaged to the extent that the sensor may no longer be properly mounted.
| 7.1. | Remove and discard the improperly installed rivet. |
| 7.2. | Reattach the sensor with the new rivet. |
| 8.1. | Remove the improperly installed rivet. |
| 8.2. | Enlarge the mounting holes 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.
Tighten
Tighten fasteners to 8.0 N·m (71 lb in).
Installation Procedure
- Install the inflatable restraint front end discriminating sensor 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, if equipped.
- Enable the SIR system. Refer to Enabling the SIR System .
Ensure that the arrow is pointing toward the front of the vehicle.
