Land Rover Discovery: External Controls Transmission Control Switch
Land Rover Discovery (2009–2016) Service Manual / Powertrain / Automatic Transmission Transaxle / External Controls
Transmission Control
Switch
External Controls Transmission Control Switch (G1816637) Removal and Installation
REMOVAL
NOTES:
- Some variation in the illustrations may occur, but the essential information is always correct.
- Removal steps in this procedure may contain installation details.
Refer to: Specifications (414-01 Battery, Mounting and Cables, Specifications).
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INSTALLATION
- To install, reverse the removal procedure.
External Controls Transmission Control Switch Knob (G1816638) Removal and Installation
REMOVAL
NOTES:
- Removal steps in this procedure may contain installation details.
- Some variation in the illustrations may occur, but the essential information is always correct.
CAUTIONS:
- Do not start the engine.
- Care must be taken to avoid damaging the surrounding components.
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INSTALLATION
CAUTION:
Make sure that a new component is installed.
NOTE:
Make sure to install the TCS plastic carrier to the TCS knob.
To install, reverse the removal procedure.
READ NEXT:
External Controls
/ Description and Operation
COMPONENT LOCATION
Downshift paddle switch
Upshift paddle switch
Transmission Control Switch (TCS)
OVERVIEW
The external controls comprise a rotary TCS (transmission control switch)
and two ste
External Controls
/ Diagnosis and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Automatic Transmission External Controls,
refer to the relevant Description and Operation section in the workshop
manual. REFER to: External C
SEE MORE:
Instrument Cluster Lens (G1791763) / Removal and Installation
REMOVAL
CAUTION:
Use a suitable trim tool.
NOTE:
Some variation in the illustrations may occur, but the essential
information is always correct.
Disconnect the battery ground cable.
Refer to: Specifications (414-01, Specifications).
Refer to: Instrument Cluster (413-01, Removal and Installation).
Engine Speed and Torque
Monitoring
The ECM constantly supplies the TCM with information on engine speed
and torque through messages on the CAN powertrain systems bus. The
TCM uses this information to calculate the correct and appropriate timing of
shift changes.
If the messages are not received from the ECM, the TCM will implement a
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