Lincoln Navigator: Parking Aid - Vehicles With: Active Park Assist / Azimuth System Check. General Procedures
Check
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NOTE:
Car shown, trucks are similar.
Turn the ignition ON, engine OFF.
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Set the parking brake on.
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For automatic transmission place the selector lever in
DRIVE (D). For manual transmission place the gearshift lever in FIRST
GEAR.
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Place the test objects in position shown in the diagram. Refer to specifications in this section.
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Monitor the suspect active park assist sensor Parameter
Identifications (PIDs) to verify the module detects the objects when
placed within the specified locations and record the distances.
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Confirm the recorded distances are within the specification ranges.
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If the active park assist system does not detect the objects, refer to diagnosis and testing in this section.
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...
Removal
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
LH side shown, RH side similar.
Remove the front wheel and tire assembly...
Other information:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the rear bumper cover.
Refer to: Rear Bumper Cover (501-19 Bumpers, Removal and Installation).
Remove the push pins, release the locating tabs and remove the liftgate module cover...
Pinpoint Tests
PINPOINT TEST A: BLUE SMOKE FROM EXHAUST
Possible Sources
Oil leak
Air cleaner
Air intake
Crankcase ventilation system
Internal engine damage
Turbocharger
A1 CHECK THE EXHAUST
Start the engine...