Question about 2005 Lincoln Navigator

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How do I know if the suspension control module is bad in a 2005 lincoln navigator?

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This is a very complicated and expensive system to maintain. I would strongly recommend doing a air suspension conversion on your Navigator and be done with the problem forever.

Lincoln Navigator Air Suspension Conversion 03 06

Posted on May 06, 2015

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Posted on Jan 02, 2017

chrischronic
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SOURCE: Air suspension pump on 2003 lincoln navigator

the little orange or red ring around the air hose whare it goes in compressor, must be pushed in while pulling out on air line. a small flathead screwdriver works fine

Posted on Apr 24, 2009

  • 3911 Answers

SOURCE: need to know the location

those airbag suspension systems are junk. you are going to spend more than the value of the car fixing it and then it will just go bad again in a few years.

take a look at this site, permanent fix for the whole system.

www.strutmasters.com

Posted on Sep 01, 2010

  • 1 Answer

SOURCE: my 2005 lincoln navigator air suspension doesnt

my 2005 lincoln navigator air suspension doesnt want to work how do i make it lift up?

Posted on Sep 11, 2010

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SOURCE: 2003 Lincoln Navigator: The air

Go to ebay motors and check out the air suspension compressor for the navigator, Mine is starting to go as well, runs all the time and getting noisy. I talked to an expert that says they are easy to change out yourself.

Posted on Nov 07, 2010

  • 277 Answers

SOURCE: Lincoln Navigator 2005 Ultimate: air suspension

One of the AIR springs is punctured.
Regards, David

Posted on Nov 27, 2010

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1 Answer

I have a 2005 Lincoln navigator replaced the two front sensors the relay and put a new compressor and now check suspension light is on what do I do


You need to have the air suspension control module fault codes read to see what diagnostics should be run to determine cause.

Oct 20, 2016 | Lincoln Cars & Trucks

1 Answer

How do I disable a 2005 lincoln navigator check suspension light?


Take the bulb out. Also, make sure you have disconnected the pump, so it's not unnecessarily running.
Sorry to hear you disabled the automatic suspension... it was an excellent and useful feature in that vehicle :(

Jul 26, 2014 | 2005 Lincoln Navigator

1 Answer

Code U3FFF


U codes are communication faults between the different modules present on your vehicle. The PCM has to maintain control via separate modules that monitor and control every aspect of it, from engine and emission control,transmission control, anti-lock, traction control, lighting, hvac, suspension control, etc...To diagnose these codes requires a quality scan tool and a technician who is experienced with these systems.

Apr 21, 2013 | 2000 Lincoln Navigator

1 Answer

03 navigator , check suspension light comes on intermittently and car is difficult to steer. Dealership says control module is faulty


YEP COULD BE FAULTY AIR SPRING COMPUTER SYSTEM OR COULD BE FAULTY HEIGHT SENSOR OR BAD AIR COMPRESSOR.

Sep 01, 2011 | 2004 Lincoln Navigator

1 Answer

2003 Lincoln Navigator: The air suspension is gone and I need to know which relay controls the module.


Go to ebay motors and check out the air suspension compressor for the navigator, Mine is starting to go as well, runs all the time and getting noisy. I talked to an expert that says they are easy to change out yourself.

Nov 04, 2010 | 2003 Lincoln Navigator

2 Answers

My 2005 lincoln navigator air suspension doesnt want to work how do i make it lift up?


my 2005 lincoln navigator air suspension doesnt want to work how do i make it lift up?

Sep 11, 2010 | 2005 Lincoln Navigator

3 Answers

HI ..I recently purchased a 98 Navigator and the previous owner had the rear air bags removed and now there is a 'check suspension " light on dash..can it be deleted ?? thanks Andy


I would re-install them myself, I liek them better, but you can try to find the air suspension control module. It is usually mounted on the AC/Heater box and it will have a black connector and a gray connector. Unplugging the black connector will turn off the “check air suspension light” but it will also disable your power steering tension (variable assist steering) control on the left side of the steering column. So after you unplug the black connector you need to remove the dark green/light green wire pin from the connector and then reconnect that black connector to the module. That will disable only the check air suspension light. Or to make quick work of it you can just identify that black connector to the module and cut the green wire. And be sure to isolate that wire because the “check air suspension light” will come on if it touches ground.

Aug 31, 2010 | 1998 Lincoln Navigator

1 Answer

Air suspension


In the Passenger Compartment Fuse Panel (below and to the left pf the steering sheel by the brake pedal), remove the panel cover t access the fuses and check the position 20, 5AMP for AIR SUSPENSION MODULE...

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This and other details canfind in the Navigator-Owner-s-Manual

Hope this help (remember comment and rated this).

Apr 29, 2010 | 2000 Lincoln Navigator

2 Answers

Airride suspension won't deflate only inflate


It will only process a "down command" if it thinks all the doors are closed. If you have a bad door switch, it won't lower. Any courtesy lights on with doors closed?
The dealer can conduct a diagnostic scan test and retrieve any codes that will help identify the bad circuit. Did they do that?

Do you have 4 wheel air suspension or just rear?

Assuming rear only:
The system consists of unique rear air springs, the air compressor, air lines, air spring solenoids, height sensor, air suspension control module, attachments and associated signals derived from both driver and road inputs. With these components and signals, the air suspension control module commands changes in vehicle height that are necessary for the load leveling features.
The load leveling feature rear air suspension (RAS) systems shall automatically make adjustments in vehicle height so that the vehicle is always at trim height and constant front-to-rear vehicle attitudes are maintained over the expected load range of the vehicle. Adjustments in height that are necessary to correct height differences between the vehicle's left and right sides for the RAS system shall be restricted to what can be reliably achieved with one air suspension height sensor.
The system uses one air suspension height sensor, a steering sensor, generic electronic module (GEM) and other vehicle sensors to measure driver and road inputs. The system changes vehicle height using an air compressor, two air lines and the use of air springs with air spring solenoids.

Note this section.
The air suspension system holds vehicle height when the rear hatch or any door is opened. The system stores rear vehicle height the moment any open door is detected. The system then maintains this height regardless of the addition or removal of a load. The system will return to its commanded height when all doors are closed or the vehicle speed exceeds 16 km/h (10 mph).

Air Suspension Switch
The air suspension switch supplies power to the air suspension control module. Without the air suspension control module receiving this power, the load leveling system is inoperative and will not react when the rear of the vehicle is raised or lowered. If the air suspension system is disabled by turning off the air suspension switch, a "CHECK SUSP" will appear in the RH corner of the instrument cluster with the ignition in the run position.
--------------------------------------------------------------------
The vent solenoid:
  • allows air to escape from the system during venting actions.
  • is part of the air compressor cylinder head.
  • has a 1,103 kPa (160 psi) internal relief valve.
  • shares a common electrical connector with the air compressor motor.
  • is enclosed in the cylinder head casting, which forms an integral valve housing that allows the valve tip to enter the pressurized side of the system.
  • has an O-ring seal that prevents air leakage past the valve tip.
  • opens when the air suspension control module determines lowering is required.
  • provides an escape route for pressurized air that opens when system pressures exceed safe operating levels.
  • is replaced with the air compressor as a unit.
---------------------------------------------------------------
Air Suspension Height Sensor
One air suspension height sensor is mounted on the vehicle. The air suspension height sensor sends a voltage signal to the air suspension control module. The output ranges from approximately 4.75 volts at minimum height (when the vehicle is low or in full jounce), to 0.25 volts at maximum height (when the vehicle is high or in full rebound). The air suspension height sensor has a useable range of 80 mm (3.2 in) compared to total suspension travel of 200-250 mm (8 to 10 in) at the wheel. Therefore, the air suspension height sensor is mounted to the suspension at a point where full rear suspension travel at the wheel is relative to 80 mm (3.2 in) of travel at the air suspension height sensor. The air suspension height sensor is attached between the No. 5 frame crossmember (upper socket) and the panhard rod (lower socket).
When the air suspension height sensor indicates that the rear of the vehicle is lower than trim under normal driving conditions, the air compressor will turn on and pump compressed air to the air springs. When the sensor indicates that the rear of the vehicle is raised above trim under normal driving conditions, this will cause the air to be vented from the air springs to lower the vehicle back to its trim height level.
Compressor Relay
The compressor relay is energized by the air suspension control module to allow high current to flow from the battery to the compressor motor.
  • A solid state relay is used in the air suspension system for air compressor control. The relay incorporates a custom power metal oxide semi-conductor field effect transistor (MOSFET) and ceramic hybrid circuitry. The relay switches high current loads in response to low power signals and is controlled by the logic of the air suspension control module.
Air Suspension Control Module
NOTE: The 4WAS air suspension control module is used for the RAS system. The internal processor recognizes external circuitry to determine if it is installed in a 4WAS or a RAS equipped vehicle.
NOTE: The air suspension control module is calibrated with information from the air suspension height sensor. A new or exchanged air suspension control module requires a ride height adjustment calibration process to be performed.
The air suspension control module controls the air compressor motor (through a solid state relay), and the air spring solenoids. The air suspension control module also provides power to the air suspension height sensor. The air suspension control module controls vehicle height adjustments by monitoring the air suspension height sensor, vehicle speed, a steering sensor, acceleration input, the door ajar signal, transfer case signals, and the brake pedal position (BPP) switch. The air suspension control module also conducts all fail-safe and diagnostic strategies and contains self-test and communication software for testing the vehicle and related components.
The air suspension control module monitors and controls the air suspension system through a 32-pin two-way connector. The air suspension control module is keyed so that the air suspension control module cannot be plugged into an incorrect harness. There are two sides of the harness connection to the air suspension control module. Each is uniquely colored and keyed to prevent reversing the connections.
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May be a bad module too.

Apr 11, 2009 | 2000 Lincoln Navigator

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