Question about 1995 Lincoln Continental

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My compresser is not coming on air suspension

The fuse is OK I don't know where the relay is to check it

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  • Anonymous Mar 25, 2014

    whem
    n the key is turned the pump doesn't comes on fuses and relay are good is there something Im missing

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  • 22 Answers

With a light or volt-ohm meter start at the wiring to compressor and trace back. Consider replacing compressor.

Posted on Nov 23, 2008

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1 Answer

Rear suspension will deflate but why won't it inflate?


That could work , You mite be able to test the sensor in question with ohm meter . Test the front one an see what the resistance is ,then check the back one. I don't know what it should be with out looking it up in the service info . You could also check to see if the sensor is getting power from the control module , an see if there is a return input to the module .
There are a few DTC'S this able to set !
Air Suspension Control Module Diagnostic Trouble Code (DTC) Index
Air Suspension Control Module Diagnostic Trouble Code (DTC) Index DTCs Description Source Action B1318 Battery Voltage Low Air Suspension Control Module Go To Pinpoint Test C . B1342 Air Suspension Control Module Air Suspension Control Module INSTALL a new air suspension control module. REFER to Module-Air Suspension Control . SET the front ride height. REFER to Air Suspension Initialization (Clear DTC B2140). CLEAR the DTCs. REPEAT the self-test. B1485 Brake Pedal Input Circuit Battery Short Air Suspension Control Module RERUN On-Demand Self-Test. MAKE SURE that the brake pedal is not pressed. If DTC is returned again, REPAIR brake pedal position (BPP) circuitry. B1566 Door Ajar Circuit Short to Ground Air Suspension Control Module Go To Pinpoint Test D . B2140 Initialization Failure (Vehicle Ride Height Not Programmed) Air Suspension Control Module REFER to Air Suspension Initialization (Clear DTC B2140). C1439 Vehicle Acceleration EEC-V Circuit Failure Air Suspension Control Module Go To Pinpoint Test E . C1724 Air Suspension Height Sensor Power Circuit Failure Air Suspension Control Module Go To Pinpoint Test F . C1726 Air Suspension Pneumatic Failure Air Suspension Control Module Go To Pinpoint Test G . C1760 Air Suspension Height Sensor High Signal Circuit Failure Air Suspension Control Module Go To Pinpoint Test H . C1770 Air Suspension Vent Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test I . C1790 Air Suspension LR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test J . C1795 Air Suspension RR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test K . C1830 Air Suspension Compressor Relay Circuit Failure Air Suspension Control Module Go To Pinpoint Test L . C1917 Steering Electronic Variable Orifice (EEVO) Out-of-Range Fault Air Suspension Control Module Go To Pinpoint Test Q .
  • Uneven vehicle height
  • Circuitry.
  • Rear pneumatic fault.
  • Air compressor assembly.
  • Air suspension control module.
  • Go To Pinpoint Test I .

Nov 06, 2015 | 2002 Lincoln Navigator

1 Answer

Where is the air compresser for suspensionlocated front or rear will raise all fuses and relays are ok


the suspension computer is located under the passenger side front fender, forward the front wheel-to access, remove the wheel and the inner fender liner.

Apr 16, 2011 | 1998 Lincoln Mark VIII

2 Answers

The suspension air compressor does not come on


Theo if the suspension air compressor doesnt come on it must be that your air is about to go out or it already has. How is your car acting? Is it low to the ground, kinda droopy?

Dec 23, 2010 | 2004 Lincoln Navigator

1 Answer

Rear suspension air compressor is not coming on. Checked fuse and it's ok?


Locate and test the relay for the compressor. Look under the hood for a fuse /relay block and look inside the cover for which relay is what.
Good luck!

Nov 06, 2010 | 1994 Buick Roadmaster

1 Answer

Ihave problem whit the light pop in the dash the air ride is on all teh time,i am look the manual an try turn the suicht on and off of the trunc is not work


Hi Alejandropen

Your Check Suspension light has come on for a reason and turning the on/off button will not remove this problem.

If your compressor does not come on

Go through the basics with the system starting with its power. Check the fuses for it in the engine bay fuse box.
Also fuse 1 and 4 in the car fuse box locate dnear trunk release.

Replace if blown and see if system works.


Checking compressor

Pull out the relay for the air suspension in the fuse box in the engine bay.
Pin 30 is the one located directly under the fuses above it.

Pin 30
Pin 86 -------- Pin 85
PIN 87

Put a peice of wire between 30 and 87 the compressor should come to life IF its workings, dont hold this bridge in for long just breifly to hear it come on then stop it.

If this works try switching the Horn relay to the Air suspension one and see if it comes alive.

If this does not work and all the fuses are ok, You have a problem with the air compressor and need to pull it out for testing or replacement.

If this works you may have an issue with the suspension controller.

Hope this helps

Dec 19, 2009 | 1991 Lincoln Town Car

1 Answer

Air suspension will not come up, compressor is not


Ok lets try this from the top,

Check the boot/trunk for the Air suspension switch make sure it accidently hasnt been turned off.,

You said you checked the fuses make sure you pulled it out and checked it not just glanced to double check,

Go to the engine bay and open up the fuse box above the battery Swap the horn and Air suspension relay *Marked on box* around and try the horn, if the horn doesnt work you found your issue and a new relay is needed.

If no avial i point you to this tech artical done by Lincoln owners for other owners theres alot of other tech tips to i'd suggest book marking the site

http://www.lincolnsonline.com/tech/00061.html


Nov 07, 2009 | 1991 Lincoln Town Car

2 Answers

Air suspension is dead on the ground fuse is good will not raise?


Check the suspension switch on the trunk, I think is on the driver side, something should happen if you turn it on/off.

Sep 17, 2009 | 1994 Lincoln Town Car

1 Answer

Need help locating relyays


if you're talking about a 94 town car, it's under the hood in the 'engine compartment fuse box' my book says fuse "U" is air suspension. Also beside the fuses are four relays. the second one down is 'air suspension relay'. hope this helps.good luck.if i fixed ya please rate me. thanks

May 23, 2009 | 1994 Lincoln Town Car

3 Answers

Rear air suspension compressor not engaging.


what year? here's 2003 rear air only info, not 4 wheel air.

you have a fuse panel in truck and 1 under hood.




Visual Inspection Chart Mechanical Electrical
  • Restricted suspension movement
  • Excessive vehicle load
  • Cut, severed or crimped air line(s)
  • Unmounted height sensor
  • Damaged air spring(s)
  • Open fuses:
    • Central junction box (CJB) Fuse 4 (15A), 6 (5A) and 20 (5A)
    • Battery junction box (BJB) Fuse 109 (50A)
  • Loose, corroded or disconnected connectors
  • Air suspension switch is in the OFF position
  • Damaged solenoid valve(s)

  • compressor is inoperative
  • BJB Fuse 109 (50A).
  • Air compressor assembly.
  • Circuitry.
  • Air suspension relay.
  • Go To Pinpoint Test P .



----------------------------------------------------------------------------

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.

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.
Air Compressor
The RAS air compressor:
  • consists of the compressor and vent solenoid; neither are replaceable as individual items.
  • is a single cylinder electric motor driven unit that provides pressurized air as required.
  • is powered by a solid state relay which is controlled by the air suspension control module.
  • passes pressurized air through the compressor air drier that contains silica gel (a drying agent). Moisture is then removed from the compressor air drier when vented air passes out of the system during vent operation.
  • air drier has a single port.
  • air drier may be replaced separately.
  • incorporates a snorkel that may be replaced separately.
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 Spring
RAS vehicles use air springs in the rear. The air springs provide a varying spring rate proportional to the systems air pressure and volume. The air suspension system regulates the air pressure in each air spring by compressing and venting the system air. Increasing air pressure (compressing) raises the rear of the vehicle while decreasing air pressure (venting) lowers the rear of the vehicle. Vehicle height is maintained by the addition and removal of air in each air spring through an air spring solenoid installed in the upper spring cap and energized through the air suspension control module.
The two air springs support the conventional rear leaf coil springs.
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.
Solenoid Valve, Air Spring
s2j~us~en~file=ani_caut.gif~gen~ref.gif WARNING: Never rotate an air spring solenoid valve to the release slot in the end cap fitting until all pressurized air has escaped from the spring to prevent damage or injury.
The air spring solenoid:
  • allows air to enter and exit the air spring during leveling operations.
  • is electrically operated and controlled by the air suspension control module.
  • is only installed as a unit.

Apr 18, 2009 | 2003 Lincoln Navigator

2 Answers

1997 lincoln continental air suspension


there are 2 fuses for the air suspension module fuse #28 in the inst panel fuse box and fuse #22 in the power distribution box in engine compartment make sure the fuses are good the module controls the air susp and the variable steering if the fuses are ok you will have to see if there is power at the module pins # 1, 36, 37, 56, 57, 58

Dec 08, 2008 | 1997 Lincoln Continental

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