Mechanics

REAR AIR SUSPENSION

1997 Lincoln Continental

Suspension problem
1997 Lincoln Continental V8 Front Wheel Drive Automatic 82358 miles

I jacked up the front end of my car with out turning off the air suspension switch. Now the rear off the car is really low and will not raise back up. I can hear the air suspension motor running but the rear will not raise. Is there any way to reset it or what do I do?
Avatar
Ainsdav
November 15, 2008.




Thank u for the email
Do u have a message on that air system disabled
at this point if u had check all height sensors and connectors and lines
you need to retrieve codes out of the system
1. Check Sensor Connectors Disconnect all height sensor connectors. Check connectors for corrosion, bent pins and damaged wires. If connectors are okay, go to next step. If connectors are worn or damaged, repair as necessary
2. Check Air Suspension Switch Connector Disconnect air suspension switch connector. Switch is located on left side of trunk. See Fig. 1 or Fig. 2 . Check connector for corrosion, bent pins and damaged wires. If connector is okay, go to next step. If connector is worn or damaged, repair as necessary.
3. Check Vehicle Dynamics Module Connector Disconnect Vehicle Dynamics Module (VDM) connector. VDM is located in trunk, behind package tray. See Fig. 1 or Fig. 2 . Check connector for corrosion, bent pins and damaged wires. If connector is okay, go to next step. If connector is worn or damaged, repair as necessary.
4. Check Air Suspension Switch Measure resistance between switch terminals of air suspension switch. If resistance is less than 3 ohms with switch on and infinite with switch off, go to next step. If resistance is not as specified, replace switch
5. Check For Short To Ground Measure resistance between ground and terminal No. 48 (Brown/Pink wire) at VDM connector. If resistance is 10,000 ohms or more, go to next step. If resistance is less than 10,000 ohms, repair short to ground in Brown/Pink wire.
6. Check For Short To Ground Measure resistance between ground and terminal No. 15 (Red/Black wire) at VDM connector. If resistance is 10,000 ohms or more, go to next step. If resistance is less than 10,000 ohms, repair short to ground in Red/Black wire.
7. Check For Open Circuit Measure resistance of Brown/Pink wire between terminal No. 48 at VDM connector and air suspension switch connector. If resistance is 3 ohms or less, go to next step. If resistance is more than 3 ohms, repair open in Brown/Pink wire
8. Check For Open Circuit Measure resistance of Red/Black wire between terminal No. 15 at VDM connector and air suspension switch connector. If resistance is 3 ohms or less, go to next step. If resistance is more than 3 ohms, repair open in Red/Black wire.
9. Measure Circuit Voltage Install Breakout Box (007-00033). Hook-up New Generation Star (NGS) tester. See EQUIPMENT HOOK-UP under TESTING & DIAGNOSIS. Rotate dial (on scan tester) to menu item DIAGNOSTIC DATA LINK, and press trigger to select. Select VDM-VEHICLE DYNAMICS MODULE. Select ACTIVE COMMAND MODES. Select AIR SUSPENSION CONTROLS. Command HGT POWER: ON. Measure voltage between test pins No. 15 (Red/Black wire) and No. 46 (Black/Pink wire) at breakout box. If voltage is 4.8-5.2 volts, go to next step. If voltage is not 4.8-5.2 volts, replace VDM. Adjust riding height.
10. Check Voltage between Terminals No. 46 & 48 Reconnect air suspension switch. Ensure switch is in ON position. Command HGT POWER: ON as in step 9). Measure voltage between test pins No. 46 (Black/Pink wire) and No. 48 (Brown/Pink wire) at Breakout Box. If voltage is 4.8-5.2volts, go to next step. If voltage is not 4.8-5.2 volts, replace VDM. Repeat ON-DEMAND SELF-TEST and PNEUMATIC TEST under DIAGNOSTIC TEST MODE . Adjust riding height.
11. Check Height Sensor Voltage Ensure air suspension switch is in ON position. Command HGT POWER: ON as in step 9). Reconnect height sensors one at a time and measure voltage between breakout box test pins No. 15 (Red/Black wire) and No. 46 (Black/Pink wire). If all readings are 4.8-5.2 volts, go to next step. If any reading is not 4.8-5.2 volts, replace suspect height sensor. Adjust riding height. See RIDING HEIGHT under ADJUSTMENTS & INSPECTION .
Check For VDM Failure Return to OPERATIONAL MODE. Ensure air suspension switch is in ON position and all air suspension components are reconnected. Check message center. If AIR LEVELING DISABLED message is displayed, replace VDM. Repeat ON-DEMAND SELF-TEST and PNEUMATIC TEST under DIAGNOSTIC TEST MODE . Adjust riding height. See RIDING HEIGHT under ADJUSTMENTS & INSPECTION . If AIR LEVELING DISABLED message is not displayed, no problem is indicated at this time. Fault may be intermittent.

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