Land Rover Defender: Four-Wheel Drive Systems

SPECIFICATIONS

Torque Specifications

NOTE: Numbers with a green background are a single use component.

COMPONENT TORQUE LOCATION

DIAGNOSIS AND TESTING

PRINCIPLES OF OPERATION

For a detailed description of the all wheel drive system and operation, refer to the relevant Description and Operation section in the workshop manual.

High/Low Range Sensor

REMOVAL AND INSTALLATION

GENERAL EQUIPMENT

REMOVAL

NOTE:

• This procedure contains illustrations showing certain components removed to provide extra clarity.
• This procedure contains some variation in the illustrations depending on the vehicle specification, but the essential information is always correct.

1. Disconnect the startup battery ground cable.

2. Raise and support the vehicle on a suitable 2 post lift.

3. Remove the left undershield.

4.

• Remove the 2 bolts.
• Remove the heatshield.

5.

Disconnect the electrical connector.

6.

CAUTION: Make sure that the mating faces are clean and free of foreign material.

• Remove the 2 bolts.
• Remove the sensor.

INSTALLATION

1.

• Install the sensor.
• Install and tighten the 2 bolts.

  Torque: 5Nm

2. Connect the electrical connector.

3.

• Install the heatshield.
• Install and tighten the 2 bolts.

  Torque: 8Nm

4. Install the left undershield.

5. Connect the startup battery ground cable.

6.

• Connect the Jaguar Land Rover (JLR) approved diagnostic equipment to the vehicle.

  General Equipment: Jaguar Land Rover approved diagnostic equipment

• Start the service function "transfer case-absolute position sensor replacement".
• Clear any Diagnostic Trouble Codes (DTCs) after calibration and check for correct operation.

Transfer Case Control Module

REMOVAL AND INSTALLATION

GENERAL EQUIPMENT

REMOVAL

CAUTION: Before disconnecting any components, make sure the area is clean and free from foreign material. When disconnected all openings must be sealed.

NOTE:

• This procedure contains some variation in the illustrations depending on the vehicle specification, but the essential information is always correct.
• This procedure contains illustrations showing certain components removed to provide extra clarity.

1. Disconnect the startup battery ground cable.

2. Raise and support the vehicle on a suitable 2 post lift.

3.

Disconnect the electrical connector.

4.

CAUTION: Make sure that the mating faces are clean and free of foreign material.

• Remove the 2 bolts.
• Remove the Transfer Case Control Module (TCCM).

INSTALLATION

1.

• Install the TCCM.
• Install and tighten the 2 bolts.

  Torque: 18Nm

2. Connect the electrical connector.

3. Connect the startup battery ground cable.

4.

• Connect the Jaguar Land Rover (JLR) approved diagnostic equipment to the vehicle.

  General Equipment: Jaguar Land Rover approved diagnostic equipment

• Start the diagnostic service function "transfer case-transfer case replacement".
• Clear any Diagnostic Trouble Code(s) (DTC) after calibration and check for correct operation.

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