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Home >> Cadillac >> 2010 >> Escalade EXT >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension Control System - Suspension Leveling >> Diagnostic Information and Procedures >> DTC C0660 >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the air compressor harness connector.
  2. Test the exhaust valve for 18-45 ohms between the control terminal and the battery positive terminal.
    • If not within the specified range, replace the air compressor.
  3. Test for infinite resistance between the control terminal and ground.
    • If less than the specified value, replace the air compressor.
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