Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Automatic Transmission  Transaxle / Routines

NOTE:

Before performing any of the following routines, ensure that the Jaguar Land Rover approved diagnostic equipment has been updated with the latest level software.

The following routines are available:

CONFIGURE NEW MODULE - TRANSMISSION CONTROL MODULE - INCLUDING TRANSMISSION REPLACEMENT

NOTE:

A new automatic transmission is supplied complete with a new transmission control module.

The Configure New Module (Including Transmission Replacement) routine is used to configure a new transmission control module with the latest level software and to store the vehicle identification number. This Configure New Module routine must be performed after installing a new transmission control module and automatic transmission. After performing the Configure New Module routine, the Transmission Control Module Adaption routine must be performed.

CONFIGURE NEW MODULE - TRANSMISSION CONTROL MODULE - WITHOUT TRANSMISSION REPLACEMENT

The Configure New Module (Without Transmission Replacement) routine is used to configure a new transmission control module with the latest level software and to store the vehicle identification number. This Configure New Module routine must be performed after installing a new transmission control module to the existing automatic transmission. After performing the Configure New Module routine, the Transmission Control Module Adaption routine must be performed.

CONFIGURE EXISTING MODULE - TRANSMISSION CONTROL MODULE

The Configure Existing Module routine is used to re-configure the transmission control module with the latest level software. The adaption counters will be reset to zero but the existing adaptions will be retained.

After performing the Configure Existing Module routine, it is not necessary to perform the Transmission Control Module Adaption routine.

TRANSMISSION VALVE BLOCK

The Transmission Valve Block routine is used to calibrate the transmission control module to the valve block. The Transmission Valve Block routine must be performed after installing a new valve block. The adaption counters will be reset to zero. After performing the Transmission Valve Block routine, the Transmission Control Module Adaption routine must be performed.

TRANSMISSION CONTROL MODULE ADAPTION

WARNING:

The Transmission Control Module Adaption routine requires one person to drive the vehicle and another person to monitor the progress of the routine. Failure to follow this instruction may result in personal injury.

NOTES:

  • The Transmission Control Module Adaption routine is also known as the Gearshift Quality Adaption routine.
  • Before performing the Transmission Control Module Adaption routine, ensure that any engine system faults have been rectified.
  • Before performing the Transmission Control Module Adaption routine, ensure that the powertrain control module has been configured with the latest level software.

The Transmission Control Module Adaption routine is used to teach the transmission control module the characteristics of the automatic transmission components. The quality of the gearshifts will improve as each adaption is completed. Adaptions will occur automatically during normal driving without the use of the Jaguar Land Rover approved diagnostic equipment, but the process will take longer.

The Transmission Control Module Adaption routine should be performed:

  • After installing a new transmission control module.
  • After installing a new automatic transmission.
  • After installing a new valve block.
  • If one or more of the adaption values for each gear is equal to or less than 3.

When performing the Transmission Control Module Adaption routine, it will be necessary to drive the vehicle at speeds between 20 and 60 mph (32 and 96 km/h). A suitable road test area should be identified where the vehicle can be driven, ideally without stopping, for up to 5 miles (8 km). If a dynamic adaption cycle is interrupted (for example, by slowing down or stopping), re-select the relevant gear and continue driving. It is not necessary to restart the routine. Before performing the Transmission Control Module Adaption routine, drive the vehicle normally to raise the automatic transmission fluid temperature to at least 50ºC.

After driving to the road test area, perform the following steps:

  1. Using the Jaguar Land Rover approved diagnostic equipment, perform routine - Transmission Control Module Adaption.
  2. Dynamic adaption - Clutch E (3rd gear):

 

  1. Drive the vehicle at a speed of between 20 and 30 mph (32 and 48 km/h).
  2. Using command shift, select 3rd gear and drive with light throttle inputs and a steady engine speed between 1150 and 2300 rpm.
  3. Using the Jaguar Land Rover approved diagnostic equipment, monitor the 'Engine Torque' and 'Engine Speed' displays - Increase or decrease the throttle input as necessary to keep the values within range.
  4. Monitor the 'Adaptions 1', 'Adaptions 2' and 'Adaptions 3' columns for clutch E.
  5. Continue driving until a green tick is displayed in each of the three columns for clutch E.
  1. Dynamic adaption - Clutch D (6th gear):
  1. Drive the vehicle at a speed of between 40 and 50 mph (65 and 80 km/h).
  2. Using command shift, select 6th gear and drive with light throttle inputs and a steady engine speed between 1150 and 2500 rpm.
  3. Using the Jaguar Land Rover approved diagnostic equipment, monitor the 'Engine Torque' and 'Engine Speed' displays - Increase or decrease the throttle input as necessary to keep the values within range.
  4. Monitor the 'Adaptions 1', 'Adaptions 2' and 'Adaptions 3' columns for clutch D.
  5. Continue driving until a green tick is displayed in each of the three columns for clutch D.
  1. Dynamic adaption - Clutches C and B (7th gear):
  1. Drive the vehicle at a speed of between 55 and 60 mph (88 and 96 km/h).
  2. Using command shift, select 7th gear and drive with light throttle inputs and a steady engine speed between 1150 and 2500 rpm.
  3. Using the Jaguar Land Rover approved diagnostic equipment, monitor the 'Engine Torque' and 'Engine Speed' displays - Increase or decrease the throttle input as necessary to keep the values within range.
  4. Monitor the 'Adaptions 1', 'Adaptions 2' and 'Adaptions 3' columns for clutches C and B.
  5. Continue driving until a green tick is displayed in each of the three columns for clutch C.
  6. Continue driving until a green tick is displayed in each of the three columns for clutch B.
  1. Static adaptions:
  1. Stop the vehicle.

    Apply the brakes. Keep the brake pedal depressed until the static adaptions are complete.

  2. Set the transmission control switch to 'Drive' and wait for 5 seconds.
  3. Set the transmission control switch to 'Neutral' and wait for 5 seconds.
  4. Perform sub-steps 3 and 4 a total of five times.

    Set the transmission control switch to 'Reverse' and wait for 5 seconds.

  5. Set the transmission control switch to 'Neutral' and wait for 5 seconds.
  6. Perform sub-steps 6 and 7 a total of five times.

AUTOMATIC TRANSMISSION TOTAL ADAPTION DISPLAY

The Automatic Transmission Total Adaption Display routine is used to display the transmission adaption status. The values in the 'Filling Count Total Adaptions' column should all be greater than 3. If any value is equal to or less than 3, perform the Transmission Control Module Adaption routine.

Gearshift quality will improve at the values increase.

TRANSMISSION CONTROL MODULE FUNCTIONALITY VERIFICATION

WARNING:

The Transmission Control Module Functionality Verification routine requires one person to drive the vehicle and another person to monitor the progress of the routine. Failure to follow this instruction may result in personal injury.

The Transmission Control Module Functionality Verification routine is used to verify the function of the transmission during a road test.

The Transmission Control Module Functionality Verification routine should be performed after installing a new valve block.

After completing the road test, check the transmission control module for DTCs and perform the relevant corrective actions.

PINPOINT TESTS

NOTE:

A road test should be performed by a suitably qualified and experienced technician in accordance with: Jaguar Land Rover - Service Experience Framework (SEF) - 4.4 Road Test Check Sheet.

The customer should be present and ideally should drive the vehicle.

PINPOINT TESTS

NOTE:

Before performing any of the following routines, ensure that the Jaguar Land Rover approved diagnostic equipment has been updated with the latest level software.

PINPOINT TESTS

PINPOINT TESTS

WARNING:

The Transmission Control Module Adaption routine requires one person to drive the vehicle and another person to monitor the progress of the routine. Failure to follow this instruction may result in personal injury.

NOTE:

For further information, refer to the section above entitled 'Transmission Control Module Adaption'.

  1. Using the Jaguar Land Rover approved diagnostic equipment, perform routine - Transmission Control Module Adaption.

Did the Transmission Control Module Adaption routine complete successfully (all adaption values equal to or greater than 3)?

Yes

Repair complete.

No

Repair complete. Customer explanation: Explain to the customer that the Transmission adaption process is an expected behaviour and will adapt during normal customer driving over a period of time. This is the same condition in which new vehicle are sold and handed over to customers.

There is no specific time frame for the adaption process to be complete and may change due to the customer driving conditions and environment conditions.

DTC INDEX

For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Section 100-00. REFER to: Diagnostic Trouble Code Index - DTC: Transmission Control Module (TCM) (100-00 General Information, Description and Operation).

Emergency Park Release (G1676160) General Procedures

ACTIVATION

WARNING:

Chock the wheels and make sure that all personnel are clear of the vehicle before carrying out the following procedure.

NOTES:

  • Removal steps in this procedure may contain installation details.
  • The ignition must be switched off.

Refer to: Air Cleaner (303-12A, Removal and Installation).

Refer to: Air Cleaner (303-12B, Removal and Installation).

CAUTION:

Using a suitable tool, lock the selector into the neutral position.

Emergency park release (G1676160) general procedures

DEACTIVATION

Emergency park release (G1676160) general procedures

Remove tool and allow selector to return to park position.

CAUTION:

Make sure that the selector lever and the gearshift mechanism are in the park (P) position before ignition is on.

To install, reverse the removal procedure.

    READ NEXT:

     Four-wheel Drive Systems - Vehicles With

     Four-Wheel Drive Systems - Vehicles With- Active Driveline Transfer Case Draining and Filling (G1964387) General Procedures

    DRAINING WARNING: Make sure to support the vehicle with axle stands. CAUTION: Make sure the vehicle is on a flat level surface. Raise and support the vehicle. Remove the engine undershield. Refer to:

     Four-wheel Drive Systems - Vehicles With- Active Driveline/ Description and Operation

    COMPONENT LOCATION - VEHICLES WITH ACTIVE DRIVELINE NOTE: Automatic transmission shown, manual transmission similar Power Transfer Unit (PTU) Driveshaft Rear Drive Unit (RDU) Hydraulic lines O

    SEE MORE:

     Transmission Fluid Level Check (G1660817) / General Procedures

    GENERAL EQUIPMENT CHECK WARNINGS: Be prepared to collect escaping fluids. Observe due care when draining, as the fluid can be very hot. CAUTION: Vehicle must be horizontal during this operation. NOTE: Some variation in the illustrations may occur, but the essential information is always correc

     Supplemental Restraint System Occupant Detection Sensor (G1791884) / Removal and Installation

    REMOVAL WARNINGS: To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing any air bag supplemental restraint system (SRS) components. To deplete the backup power supply energy, disconnect the battery ground cable and

    © 2019-2024 Copyright www.lrdisc.com