Other information:
DISASSEMBLY
Remove the rear bumper cover.
Refer to: Rear Bumper Cover (501-19 Bumpers, Removal and Installation).
Disconnect the hands-free liftgate module electrical connector.
Disconnect the rear park aid sensor electrical connectors...
Reference Value Symptom Chart
NOTE:
The Reference Value Symptom Chart provides guidance in
selecting the appropriate parameter identification (PID) or measured
signal related to the fault area. Select a symptom from the symptom
chart along with the category number and go to the PID/Measured Signal
Chart...