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Home >> Lincoln >> 1991 >> Town Car Cartier >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Suspension - Rear Air >> Testing & Diagnosis >> Service Bay Diagnostics >> Test Procedure

Test Procedure

  1. Remove all extra loads from luggage compartment. Turn air suspension switch, located on right side of luggage compartment, OFF, then ON. Attach tester according to manufacturers instructions.
  2. Start engine. If engine cannot be started, connect battery charger to maintain battery level and turn ignition switch to RUN position. Wait 5 seconds, then depress STAR tester button so it remains in TEST position. Code 10 should be displayed. If Code 10 is displayed, go to next step. If Code 80 is displayed, go to TEST N (CODE 80), BATTERY VOLTAGE LOW. If no codes are displayed, go to TEST P, UNABLE TO ENTER SERVICE BAY DIAGNOSTICS.
  3. Code 10 will be displayed for up to 2 minutes. DO NOT put any weight on vehicle while code 10 is displayed. When Auto Test is complete, Code 12 (test passed) or Code 13 (test failed) will be displayed. With Code 12 or 13 still displayed, open all doors and turn steering wheel 1/4 turn in both directions.
  4. Release tester button to HOLD position. Wait 5 seconds then depress tester button to TEST position. Codes will be displayed within 20 seconds. If Code 11 is displayed, vehicle passes. Exit diagnostics by disconnecting tester and turning ignition switch to OFF position. If any other code is displayed, refer to ELECTRONIC SUSPENSION DIAGNOSTIC CODES chart for proper test. DO NOT disconnect tester. DO NOT turn ignition or air suspension switch off.
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