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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 234 (Vehicle Dynamic Suspension) >> Diagnosis And Testing >> Vehicle Dynamic Suspension >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Before diagnosing the air suspension system, carry out the air suspension module self-test. If a DTC is present, follow the diagnosis and testing procedures. If no DTC is present, check the vehicle ride height by following the RIDE HEIGHT ADJUSTMENTS .
If the system cannot reach the correct ride height, check all of the air supply lines and connections for leaks/blockage/or damage, height sensor integrity and/or compressor relay operation before installing a new air compressor.
  1. Verify the customer concern.
    2. NOTE: If the door ajar indicator is illuminated, repair the door ajar indicator. Refer to WARNING DEVICES .
  2. Visually inspect for obvious signs of mechanical and electrical damage.
    VISUAL INSPECTION DESCRIPTION

    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)
    • Central junction box (CJB) fuse:
      • 4 (10A)
    • Battery junction box (BJB) fuse:
      • 5 (10A)
      • 112 (30A)
    • Electrical connectors
    • Air suspension switch
    • Damaged air spring solenoid(s)
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. 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.
  5. If the scan tool still does not communicate with the vehicle, refer to the scan tool manual.
  6. 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 MODULE COMMUNICATIONS NETWORK .
    • NO RESP/NOT EQUIP for air suspension 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 scan for the air suspension module and system pneumatic test.
  7. If the DTCs retrieved are related to the concern, GO to AIR SUSPENSION MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX  to continue diagnostics.
  8. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART  to continue diagnostics.
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