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Home >> Cadillac >> 2002 >> Eldorado ECS >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Electronic Suspension System - Road Sensing Suspension >> Diagnostic Information and Procedures >> DTC C0690: Damper Control Relay Circuit Malfunction; C0691: Damper Control Relay Circuit Range; C0693: Damper Control Relay Circuit High >> Test Description

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 2. This step tests for voltage in the damping relay coil control circuit.
  2. 3. This step tests for a short to voltage in the damping relay coil control circuit.
  3. 4. This step tests for a short to voltage in the damper drive relay circuit.
  4. 5. This step tests for an open in the damper drive relay circuit.
    Fig 1: DTC C0690, C0691, Or C0693
    G01651998Courtesy of GENERAL MOTORS CORP.
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