Removal Procedure
WARNING:
Refer to Exhaust Service Warning .
WARNING:
Refer to Protective Goggles and Glove Warning .
- Before performing the first steps, review the Emission Reduction Fluid and Emission Reduction Fluid Handling .
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Remove the underbody front air deflector - right. Refer to Underbody Front Air Deflector Replacement - Right Side .
- Disconnect the nitrogen oxide sensor module wiring harness plug (5).
- Remove the 2 nitrogen oxide sensor module nuts (4).
- Remove the nitrogen oxide sensor module (3) from the bracket (2).
- Remove the push nut tie clip (1) from the stud (4) protruding from the exhaust heat shield.
- Disconnect the 2 tie-strap clips (2, 3) from the brake lines and the taped on edge clip from the floor panel tunnel.
- Use a marker to mark location of the 2 tie-strap clips and the taped on edge clip on both the exhaust particulate sensor wire and on the NOX sensor wire.
- Use a marker to mark location of the push nut tie clip on the NOX sensor wire.
- Remove all clips from the wires to separate the 2 sensors.
- Loosen the nitrogen oxide sensor wiring harness from the wiring harness clip (1) and the mount wire tie clip (2).
- Remove the nitrogen oxide sensor (4) from the exhaust pipe, using a suitable tool.
Fig 1: Exhaust Particulate Sensor Module Wiring Harness Plug And Exhaust Particulate Sensor Module Nuts
NOTE:
The taped on edge clip MUST BE replaced with a NEW clip whenever it is removed from the floor panel tunnel, even if no sensors are replaced.