Question about 2003 Lincoln Town Car

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2003 lincoln town car

The air bags do not work. My car is lowerd on the back how do I fix this problem?

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  • gerry bissi May 11, 2010

    Rear Air Suspension Control Module

    A microprocessor controls the air suspension system. The microprocessor and its supporting hardware are contained in the rear air suspension control module. The rear air suspension control module responds to signals from various sensors in the vehicle to maintain the programmed ride height while the vehicle is either moving or stopped. The rear air suspension control module accomplishes this by opening and closing solenoid valves to control the amount of air in the air spring(s). The rear air suspension control module turns on the compressor by applying voltage through the compressor relay to inflate the air spring(s) and raise the vehicle. The rear air suspension control module opens the vent solenoid to lower the vehicle by releasing air from the air spring(s) in response to signal inputs from the air suspension height sensor.

    The air suspension module has a preprogrammed trim height. Whenever a door is opened, the air suspension will compensate in order to bring the vehicle back to the preprogrammed trim height.

    Air Suspension Switch

    CAUTION: The air suspension switch must be turned to the OFF position when the vehicle is hoisted, jacked, towed, jump started, or raised off the ground, to avoid unnecessary operation of the system and possible damage to the air suspension system components.

    The air suspension switch provides a signal to the rear air suspension control module in the ON position to activate the system to maintain the programmed vehicle height.

    Air Compressor

    NOTE: The compressor contains a thermal overload circuit breaker. The circuit breaker automatically resets after a cool-down period and after being tripped by excessive compressor motor heat.

    The air compressor assembly consists of the compressor pump, electric motor and vent solenoid (must be installed as an assembly).

    Air Suspension Rotary 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). Install a new air suspension height sensor as a unit.

    When the air suspension height sensor indicates that the rear of the vehicle is lower than trim height under normal driving conditions, the air compressor will turn on and pump compressed air into 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.

    Solenoid Valve, Air Spring

    WARNING: Never rotate an air spring solenoid valve to the release slot in the air spring end cap fitting until all pressurized air has escaped from the air spring.

    The air spring solenoid valve allows air to enter and exit the rear air springs during height adjustment operations. The air spring solenoid valve is electrically operated and controlled by the air suspension control module.


    Inspection and Verification


    1. Verify the customer concern.



    1. NOTE: If the door ajar indicator is illuminated, repair the door ajar indicator. For additional information, refer to Section 413-09 .
      Visually inspect for obvious signs of mechanical and electrical damage.




    Visual Inspection Chart


    Mechanical

    Electrical




    • Restricted suspension movement
    • Excessive vehicle load
    • Cut, severed or crimped air line(s)
    • Incorrectly mounted, damaged or disconnected height sensor
    • Damaged air spring(s)



    • Battery junction box (BJB) fuses:

      • 10 (10A)
      • 101 (50A)
      • 114 (30A)

    • Loose or corroded connectors
    • Air suspension switch
    • Damaged air spring solenoid(s)



    1. If the concern remains after the inspection, connect the scan tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:

      • check that the program card is correctly installed.


      • check the connections to the vehicle.


      • check the ignition switch position.


    1. If the scan tool still does not communicate with the vehicle, refer to the scan tool manual.


    1. Carry out the DATA LINK DIAGNOSTIC TEST. If the scan tool responds with:

      • CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Section 418-00 .


      • NO RESP/NOT EQUIP for rear air suspension control module, Go To Pinpoint Test A .


      • SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the rear air suspension control module and system pneumatic test.


    1. If the DTCs retrieved are related to the concern, go to Rear Air Suspension Control Module Diagnostic Trouble Code (DTC) Index to continue diagnostics.


    1. If no DTCs related to the concern are retrieved, GO to Symptom Chart to continue diagnostics.


    Rear Air Suspension Control Module Diagnostic Trouble Code (DTC) Index

    NOTE: If the air suspension control module C2131b is disconnected before the air suspension control module C2131a, DTCs C1830, C1770, C1790 and C1795 will be retrieved and must be cleared before an accurate list of continuous DTCs can be retrieved



    -----

    Vehicle Dynamic Suspension

    The vehicle dynamic suspension consists of the following components:


    • Rear air suspension (RAS) control module
    • Snorkel
    • Drier
    • Air compressor
    • Air suspension switch
    • Solenoid valve
    • Air spring
    • Air suspension height sensor (rotary type)
    • Air line

  • gerry bissi May 11, 2010

    is the switch on in the trunk? read your owner manual for fuses & relay checks.

  • Greg Margossian
    Greg Margossian May 11, 2010

    Do the bags inflate and then drop or not fill at all? I'd check the hose coming from the compressor under the hood. If you hear it working but hissing, you have a leak in the line. If they don't inflate at all and you don't hear the compressor working, the compressor is likely at fault. If they inflate and then drop, it's more likely the air bags.

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Posted on Jan 02, 2017

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SOURCE: 1999 Lincoln Town Car Air Bag Light Problem

If you have replaced impact sensor, make sure the connectors are secured by the lock tabs. They have to be connected securely.

Posted on Jul 11, 2008

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  • 3 Answers

SOURCE: 1996 lincoln town car

You can still drive the car but you have limited rear shocks. I wouldn't do it for any longer than I had to. If money for replacement of the air shocks is a concern, there is a cheaper "regular" shock retrofit kit available.

Posted on Sep 28, 2008

  • 1 Answer

SOURCE: Air Rise Suspension/computer module

i went to auto zone and bought coil springs for my 93 town car went home jacked it up disconnected the air bags pulled them out put springs in let it down and was driving in less than 45 minutes. at a cost less than $200.

Posted on Feb 23, 2010

kennyz195
  • 61 Answers

SOURCE: 2003 Lincoln Town Car - Power window switch removal/installation

SECTION 501-05: Interior Trim and Ornamentation 2003 Town Car Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 01/28/2002 Front Door Trim Panel adobe.gif Printable View (206 KB) Removal and Installation
NOTE: LH side shown, RH side similar.

  1. Disconnect the battery ground cable. For additional information, refer to Section 414-01.
  1. Remove the window switch plate.
    a0045307.gif
  1. Disconnect the electrical connectors.
    a0044981.gif
  1. ani_caut.gif CAUTION: Use care not to damage the trim panel covers.
    Open the screw covers.
    a0045817.gif
  1. Remove the screws and the assist handle.
    a0045818.gif
  1. Remove screws and the front door trim.
    a0045819.gif
  1. Disconnect the electrical connectors.
    a0045834.gif
  1. To install, reverse the removal procedure.

2010&c18=modelyear&c20=n306887&c35=wsm%2cfront%20door%20trim%20panel%2cs3g%2c501-05%2cremoval%20and%20installation&s=1600x900&c=32&j=1.3&v=y&k=y&bw=1171&bh=582&ct=modem&hp=n&[aqe]

Posted on Apr 05, 2010

  • 3 Answers

SOURCE: Need to change air suspension compresor of 1998 Lincoln Town Car

You should consider looking into one of Strutmasters air suspension conversion kits. Here is a link to their Lincoln Navigator suspension: http://www.strutmasters.com/lincoln-navigator-suspension-s/39.htm

Posted on Jun 11, 2010

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