Impact Sensor: Service and Repair

2012 Ford E 450 V8-5.4LSECTION Service and Repair



Front Impact Severity Sensor









Removal and Installation

WARNING: If a vehicle has been in a crash, inspect the restraints control module (RCM) and the impact sensor (if equipped) mounting areas for deformation. If damaged, restore the mounting areas to the original production configuration. A new RCM and sensors must be installed whether or not the air bags have deployed. Failure to follow these instructions may result in serious personal injury or death in a crash.

NOTE: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.

NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

1. Depower the SRS (Supplemental Restraint System). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion.

2. If necessary, remove the radiator grille.
- Remove the screw.

- Remove the 4 scrivets.

- Grasp the grille and pull forward to disengage the 3 lower clips and remove.


3. Disconnect the front impact severity sensor electrical connector.

4. WARNING: Always tighten the fasteners of the restraints control module (RCM) and impact sensor (if equipped) to the specified torque. Failure to do so may result in incorrect restraint system operation, which increases the risk of personal injury or death in a crash.
Remove the 2 bolts and front impact severity sensor.

- NOTE: For installation, position the front impact severity sensor at the top of the mounting bracket with the connector end facing the RH side of the vehicle.
To install, tighten to 12 Nm (106 lb-in).







5. To install, reverse the removal procedure.

6. Repower the SRS (Supplemental Restraint System). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.