Lincoln Navigator: Parking Aid / Elevation System Check. General Procedures
Check
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Turn the ignition ON, engine OFF.
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Set the parking brake.
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Place the gearshift in REVERSE (R) for rear parking aid sensors.
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Place the gearshift in DRIVE (D) for front parking aid sensors.
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Using a diagnostic scan tool, monitor the parking aid
sensor distance Parameter Identifications (PIDs) to verify no objects
are detected.
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If the audible warning is heard or if the Parameter
Identifications (PIDs) indicate an object is detected, check to make
sure the bumper is correctly installed and is not tilted downward so the
sensor is pointing at the ground. Refer to Diagnosis and Testing.
Check
NOTE:
The object used in this system check can be
fabricated using a 9 cm diameter (3 in I.D.) pipe, 100 cm (39 in) in
length (available as Polyvinyl Chloride (PVC) pipe, or similar from a
hardware or plumbing supply...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
RH side shown, LH side similar.
With the vehicle in NEUTRAL, position it on a hoist...
Other information:
Activation
WARNING:
Shifting the transfer case to its neutral position for
neutral flat towing may allow the vehicle to be able to roll even if the
transmission is in park (P). Make sure the foot brake is depressed and
the vehicle is in a secure and safe position while the transfer case is
being shifted to its neutral position...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the HVAC control module.
Refer to: Heating, Ventilation and Air Conditioning (HVAC) Control
Module (412-00 Climate Control System - General Information, Removal and
Installation)...