Symptom Chart
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart
| Condition |
Possible Sources |
Action |
NOTE:
Make sure the air suspension switch is in the ON position before determining that a fault condition is present.
- No communication with the Vehicle Dynamics Module (VDM)
|
- Fuse(s)
- Wiring, terminals or connectors
- VDM
|
|
- Unable to enter self-test
|
|
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- The scan tool indicates self-test failure when attempting to carry out self-test
|
- Air suspension switch
- Wiring, terminals or connectors
|
- VERIFY that the air suspension service switch is in the ON position. If the switch is not in the ON position, TOGGLE the switch to the ON position and REPEAT the self-test. If the switch is in the ON position, go to Pinpoint Test G .
|
- The air compressor is inoperative
|
- Fuse
- Wiring, terminals or connectors
- Air compressor relay
- Air compressor
|
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- The air compressor runs continuously with the ignition switch in the OFF position and no DTCs are set
|
- Wiring, terminals or connectors
- Air compressor relay
- VDM
|
|
- Air suspension system works with air suspension switch in the OFF position
|
|
- CHECK circuit 635 (YE) for a short to voltage. REPAIR as necessary. If circuit 635 (YE) is OK, INSTALL a new air suspension switch. REFER to Air Suspension Switch . TEST the system for normal operation.
|
|
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- Pneumatic fault
- Air suspension height sensor
- Air spring solenoid
- Air compressor
- Air spring
- VDM
|
- INSPECT the possible sources for damage, INSTALL new or REPAIR as necessary.
|
- Incorrect vehicle trim height
|
- Incorrect ride height adjustment
- Incorrect height sensor calibration
- Incorrect VDM calibration
|
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| |
- Rear suspension component damage
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- INSPECT and REPAIR the rear suspension components as necessary. REFER to REAR SUSPENSION
article.
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