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Home >> Cadillac >> 2017 >> Escalade Base, 4WD >> Repair and Diagnosis (Single Page) >> Suspension >> Electronic Suspension >> Suspension Control System - Suspension Leveling >> Diagnostic Information and Procedures >> DTC C0711: Level Control Air Pressure Sensor Malfunction Signal Invalid (With Z95) >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B196 Air Suspension Pressure Sensor. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 Ω between the low reference circuit terminal F and ground.
    • If 10 Ω or greater 
    1. Disconnect the harness connector at the K19 Suspension Control Module.
    2. Test for less than 2 Ω in the low reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K19 Suspension Control Module.
    • If less than 10 Ω 
  3. Ignition ON.
  4. Test for 4.8 - 5.2 V between the 5 V reference circuit terminal H and ground.
    • If less than 4.8 V 
    1. Ignition OFF, disconnect the harness connector at the K19 Suspension Control Module.
    2. Test for infinite resistance between the 5 V reference circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 Ω in the 5 V reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K19 Suspension Control Module.
    • If greater than 5.2 V 
    1. Ignition OFF, disconnect the harness connector at the K19 Suspension Control Module, ignition ON.
    2. Test for less than 1 V between the 5 V reference circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K19 Suspension Control Module.
    • If between 4.8 - 5.2 V 
  5. Ignition OFF, disconnect the harness connector at the K19 Suspension Control Module, ignition ON.
  6. Test for less than 1 V between the B196 Air Suspension Pressure Sensor signal circuit terminal A and ground.
    • If greater than 1 V 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  7. Ignition OFF.
  8. Test for infinite resistance between the B196 Air Suspension Pressure Sensor signal circuit terminal A and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  9. Test for less than 2 Ω between the B196 Air Suspension Pressure Sensor signal circuit terminal A and the K19 Suspension Control Module signal circuit terminal 7.
    • If 2 Ω or greater 

      Repair the open/high resistance in the circuit.

    • If less than 2 Ω 
  10. Replace the B196 Air Suspension Pressure Sensor.
  11. Verify the DTC does not set while operating the vehicle under Conditions for Running the DTC.
    • If the DTC sets 

      Replace the K19 Suspension Control Module.

    • If the DTC does not set 
  12. All OK.
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