Land Rover Defender: Air Suspension Manual Tight Tolerance Setting Mode

GENERAL PROCEDURES

ACTIVATION

NOTES:

• If this procedure has been successful the instrument cluster will emit 2 soft chimes 1 second after the drivers door is closed. The instrument cluster will then emit 2 soft chimes each time the drivers door is closed to confirm that air suspension manual tight tolerance setting mode is still active.
• Apply 3 light applications to the brake pedal during this procedure. Make sure that the pedal is returned to the fully off position before the next application.

1.

2.

CAUTION: Engine must be running, Eco stopped or the equivalent Battery Electric Vehicle (BEV) state.

Run the engine.

3. Set the suspension to the normal height.

4. Open the drivers door.

5. Press the brake pedal 3 times (make sure that the pedal is fully returned to the rest position before applying the next application).

6. Close the drivers door within 10 seconds of the first brake pedal application.

DEACTIVATION

1. Turn the engine off or drive the vehicle over 8 km/h (5 mph).

Air Suspension System Depressurize and Pressurize

GENERAL PROCEDURES

PRESSURE RELEASE

WARNINGS:

• A small amount of air pressure will be left in the air suspension system.
• Eye protection must be worn.
• Make sure the tailgate, hood and all doors are closed.

1.

WARNING: The air suspension is pressurized. Make sure dirt or grease does not enter the system. Always wear hand, eye and ear safety standard protection when working on the system.

Connect the Jaguar Land Rover (JLR) approved battery support unit.

2. Connect the JLR approved diagnostic equipment to the vehicle and begin a new diagnostic session.

3. Follow the JLR approved diagnostic equipment prompts.

4.

• Select 'ECU Diagnostics'.
• Select ' Chassis Control Module (CHCM)'.
• Select 'ECU Functions'.
• Select 'Air suspension deflation'.
• Follow all on-screen instructions to complete this task.

ACTIVATION

1.

• Select 'ECU Diagnostics'.
• Select ' CHCM'.
• Select 'ECU Functions'.
• Select 'Air suspension enable'.
• Follow all on-screen instructions to complete this task.

2. When the task is completed, exit the current session.

3. Disconnect the JLR approved diagnostic equipment and the JLR approved battery support unit.

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