LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2021 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Restraints System (Service Information) >> Sensor, Impact >> Removal >> Front
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Sensor, Impact: Removal: Front

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbags, airbag curtains, knee blocker, seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect the Intelligent Battery Sensor (IBS)/negative battery cable assembly from the negative battery post, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.

WARNING:

To avoid serious or fatal injury, never strike or drop the front impact sensor, as it can damage the impact sensor or affect its calibration. The front impact sensor enables the system to deploy the front supplemental restraints. If an impact sensor is accidentally dropped during service, the sensor must be scrapped and replaced with a new unit. Failure to observe this warning could result in accidental, incomplete, or improper front supplemental restraint deployment.

NOTE:

The front and the side impact sensors are NOT interchangeable.

  1. Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable. Wait two minutes for the system capacitor to discharge before further service.
  2. Remove the right or left front lamp unit from the vehicle. Refer to UNIT, FRONT LAMP, REMOVAL .
    GC0146099Courtesy of CHRYSLER GROUP, LLC
  3. Disconnect the Front End Module (FEM) wire harness connector (4) from the right or left front impact sensor (1) connector receptacle.
  4. Remove the screw (3) that secures the sensor to the outboard side of the FEM vertical support (2) between the cooling module and the front lamp unit opening.
  5. Disengage the locating pin integral to the sensor from the locating hole in the FEM vertical support.
  6. Remove the right or left front impact sensor from the vehicle.