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Circuit/System Testing

  1. Ignition OFF, disconnect the connector at the K5 Automatic Level Control Module, ignition ON/Vehicle in Service Mode.
  2. Test for less than 1 V between the K5 Automatic Level Control Module connector terminal 9 and ground.
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • Go to next step: If less than 1 V 
  3. Ignition OFF.
  4. Disconnect harness connector at the Q4 Vehicle Level Control Solenoid Valve.
  5. Test for infinite resistance between K5 Automatic Level Control Module connector terminals listed below and ground.
    • Terminal 7
    • Terminal 9
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • Go to next step: If Infinite resistance 
  6. Test for less than 2 Ω between Q4 Vehicle Level Control Solenoid Valve connector terminal 1 and K5 Automatic Level Control Module connector terminal 9.
    • If 2 Ω or greater 

      Repair the open/high resistance in the circuit.

    • Go to next step: If less than 2 Ω 
  7. Test for less than 2 Ω between Q4 Vehicle Level Control Solenoid Valve connector terminal 2 and K5 Automatic Level Control Module connector terminal 7.
    • If 2 Ω or greater 

      Repair the open/high resistance in the circuit.

    • Go to next step: If less than 2 Ω 
  8. Test for 11.4 - 12.6 Ω between Q4 Vehicle Level Control Solenoid Valve connector terminal 1 and Q4 Vehicle Level Control Solenoid Valve connector terminal 2.
    • If not 11.4 - 12.6 Ω 

      Replace the Q4 Vehicle Level Control Solenoid Valve

    • Go to next step: If 11.4 - 12.6 Ω 
  9. Replace the K5 Automatic Level Control Module.
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