Land Rover Defender: Communications Network - 110
DESCRIPTION AND OPERATION
COMPONENT LOCATION
COMPONENT LOCATION - 1 OF 3
NOTE:
Right Hand Drive (RHD) vehicle is shown, Left Hand Drive (LHD) vehicle is
similar.
- Headlamp Control Module B (HCMB)
- Anti-Lock Brake System Control Module (ABS)
- Image Processing Module (IPMA)
- Tire Pressure Monitoring System Control Module (TPM)
- Transfer Case Control Module (TCCM)
- Transmission Control Module (TCM)
- Powertrain Control Module (PCM)
- Power Steering Control Module (PSCM)
- Headlamp Control Module A (HCM)
- Cruise Control Module (CCM)
COMPONENT LOCATION - 2 OF 3
NOTE:
RHD vehicle is shown, LHD vehicle is similar.
- Head Up Display (HUD)
- Instrument Panel Cluster (IPC)
- Driver Assistance Domain Controller (DADC)
- Steering Wheel Module (SWM)
- Electric Steering Column Lock Control Module (VIM)
- Driver Door Control Module (DDM)
- Seat Module - Driver/Passenger/Rear - Left/Right (DSM)
- Driver Seat Climate Control Module (DSCCM)
- Wireless Device Charger Module (WDCM)
- Driver Rear Door Module (DRDM)
- Rear Integrated Control Panel (FCIMB) (if equipped)
- Second row seat heater control (if equipped)
- Restraints Control Module (RCM)
- Passenger Rear Door Module (PRDM)
- Front Infotainment Control Module (IGM / ICCM)
- Remote Function Actuator (RFA)
- Seat Module - Driver/Passenger/Rear - Left/Right (PSM)
- Passenger Seat Climate Control Module (PSCCM)
- Passenger Door Control Module (PDM)
- Transmission Control Switch (TCS)
- Integrated Control Panel (FCIM)
- Near Field Sensing Module (NFSM)
- Body Control Module (BCM)/ Gateway Control Module (GWM)
- Touch Screen (FCDIM)
- Heating, ventilation, and air conditioning (HVAC) control module
COMPONENT LOCATION - 3 OF 3
NOTE:
RHD vehicle is shown, LHD vehicle is similar.
- Chassis Control Module (CHCM)
- Side Obstacle Detection Control Module - Right (SODR)
- Rear Differential Control Module (RDCM)
- Voltage Quality Module (VQM)
- Towbar Control Module (TBM)
- Side Obstacle Detection Control Module - Left (SODL)
- Audio Amplifier Control Module (AAM)
- Telematics Control Module (TCU)
OVERVIEW
A number of different types of communication network are incorporated into
the vehicle wiring harnesses for the
transmission of commands and information between control modules. The
configuration installed on a particular
vehicle depends on the model and equipment level.
NOTE:
The control diagrams shown in this section are schematics reflecting
communications networks installed to
RHD vehicles only. For detailed layouts of the various communications networks
installed to RHD and LHD
vehicles refer to the electrical guide.
The communications networks available on the vehicle are shown below:
- Ethernet
- FlexRay
- High Speed (HS) Controller Area Network (CAN) diagnostic bus
- HS CAN Human Machine Interface (HMI) systems bus
- HS CAN body systems bus
- HS CAN power mode zero systems bus
- HS CAN Underbody (UN) systems bus
- HS CAN powertrain systems bus
- Private CAN bus
- Local Interconnect Network (LIN).
DIAGNOSTIC CONNECTOR
The Diagnostic Connector (J1962) is connected to the BCM/ GWM through the
Diagnostic over Internet Protocol
(DoIP) and the HS CAN diagnostic bus. The DoIP is the prime connection for the
Jaguar Land Rover (JLR) approved
diagnostic equipment.
DESCRIPTION
Refer to the relevant system section for details of system description.
OPERATION
Refer to the relevant system section for details of system operation.
CONTROL DIAGRAM
HIGH SPEED CONTROLLER AREA NETWORK DIAGNOSTIC BUS
D = HS CAN DIAGNOSTIC BUS: A C = DOIP.
- BCM/ GWM
- J1962
ETHERNET
AW = ETHERNET: BF = ETHERNET WAKE-UP.
- BCM/ GWM
- NFSM
- TCU
- J1962
- AAM
- IGM / ICCM
- IPMA
- DADC
FLEXRAY
AX = FLEXRAY.
- BCM/ GWM
- PCM
- DADC
- PSCM
- SWM
- ABS
- RCM
- NFSM
- TCM
- CHCM
- TCCM
HIGH SPEED CONTROLLER AREA NETWORK HUMAN MACHINE INTERFACE SYSTEMS BUS
BA = HS CAN HMI SYSTEMS BUS.
- BCM/ GWM - Terminator module
- FCDIM
- HVAC control module
- HUD
- FCIMB
- IPC - Terminator module
- AAM
- IGM / ICCM
HIGH SPEED CONTROLLER AREA NETWORK BODY SYSTEMS BUS
AZ = HS CAN BODY SYSTEMS BUS.
- BCM/ GWM - Terminator (quantity 2) module
- VIM
- PSM
- PDM
- WDCM
- DRDM
- PRDM
- RFA
- TBM
- DDM
- DSM
HIGH SPEED CONTROLLER AREA NETWORK POWER MODE ZERO SYSTEMS BUS
AY = HS CAN POWER MODE ZERO SYSTEMS BUS.
- BCM/ GWM - Terminator module
- PCM - Only Ingenium I6 3.0L petrol
- Turbocharger / Supercharger Control Module (TSCM) (if equipped)
- Belt Integrated Starter Generator (BISG) (if equipped)
- HVAC control module - Terminator module
- Direct Current to Direct Current converter (DC/DC) (if equipped)
- Battery Energy Control Module (BECM) (if equipped)
HIGH SPEED CONTROLLER AREA NETWORK UNDERBODY SYSTEMS BUS
BL = HS CAN UN SYSTEMS BUS.
- DADC - Terminator module
- TCS
- HCM
- PSCM
- BCM/ GWM
- IPMA
- SODR
- TPM
- RDCM
- HCMB
- CCM
- ABS - Terminator module
HIGH SPEED CONTROLLER AREA NETWORK POWERTRAIN SYSTEMS BUS
AN = HS CAN POWERTRAIN SYSTEMS BUS.
- BCM/ GWM - Terminator module
- TCU - Terminator module
PRIVATE CONTROLLER AREA NETWORK BUS - 1 OF 4 - BLINDSPOT MONITORING
CONTROL CIRCUIT
U = PRIVATE CAN BUS.
- SODL
- SODR
PRIVATE CONTROLLER AREA NETWORK BUS - 2 OF 4 - DRIVER ASSISTANCE DOMAIN
CONTROLLER CONTROL
CIRCUIT
U = PRIVATE CAN BUS.
- DADC
- CCM
PRIVATE CONTROLLER AREA NETWORK BUS - 3 OF 4 - HVAC CONTROL CIRCUIT
U = PRIVATE CAN BUS.
- HVAC control module
- FCIM
PRIVATE CONTROLLER AREA NETWORK BUS - 4 OF 4 - HEADLAMP CONTROL CIRCUIT
U = PRIVATE CAN BUS.
- HCMB
- HCM
LOCAL INTERCONNECT NETWORK - 1 OF 11 - BODY CONTROL MODULE/GATEWAY CONTROL
MODULE CONTROL
CIRCUIT
O = LIN.
- BCM/ GWM
- Ambience lighting Light Emiting Diode (LED) - Instrument panel
- Ambience lighting LED - Console
- Rear View Mirror (RVM)
- VQM
- HCM
- HCMB
- Immobilizer Antenna Unit (IAU)
- Roof opening panel control module (glass roof has 1 node, canvas roof
has 2 nodes)
- Wiper motor - Front window
- Rain/light sensor
- Battery Back-Up Sounder (BBUS)
- Right steering wheel switch
- SWM
- Volumetric sensor
LOCAL INTERCONNECT NETWORK - 2 OF 11 - LEFT STEERING WHEEL SWITCH
O = LIN.
- Left steering wheel switch
- SWM
- IGM / ICCM
- IPC
LOCAL INTERCONNECT NETWORK - 3 OF 11 - POWERTRAIN CONTROL MODULE CONTROL
CIRCUIT
O = LIN.
- PCM
- Active grille air shutter motor
- Glow plug control module (diesel vehicles only)
LOCAL INTERCONNECT NETWORK - 4 OF 11 - BATTERY MONITORING SYSTEM
O = LIN.
- BCM/ GWM
- Battery Monitoring System (BMS) control module
- Generator
LOCAL INTERCONNECT NETWORK - 5 OF 11 - HVAC CONTROL MODULE
O = LIN.
- HVAC control module
- Seat heater - Passenger
- Seat heater - Second row left
- Seat heater - Third row left
- PSCCM
- Rear Seat Climate Control Module (RSCCM) - Left
- Blower - Front
- Recirculation motor
- Cool air bypass motor
- Distribution motor - Front left
- Temperature blend motor - Front left
- Temperature blend motor - Rear left
- Temperature blend motor - Front right
- Temperature blend motor - Rear right
- Auxiliary climate control face/feet motor
- Distribution motor - Front right
- Distribution motor - Demist
- Humidity sensor
- RSCCM - Right
- DSCCM
- Seat heater - Second row right
- Seat heater - Third row right
- Seat heater - Driver
- Auxiliary blower rotary control
- Fuel Fired Booster Heater Control Module (AHCM)
- AHCM receiver
LOCAL INTERCONNECT NETWORK - 6 OF 11 - DRIVER DOOR CONTROL MODULE CONTROL
CIRCUIT
O = LIN.
- DDM
- Door switchpack - Driver
- Clear Exit Detection System (CEDS) indicator
- Ambience lighting LED - Driver door
- Ambience lighting LED - Driver door handle
- Seat memory switchpack - Driver
LOCAL INTERCONNECT NETWORK - 7 OF 11 - PASSENGER DOOR CONTROL MODULE
CONTROL CIRCUIT
O = LIN.
- PDM
- CEDS indicator
- Ambience lighting LED - Passenger door
- Ambience lighting LED - Passenger door handle
- Seat memory switchpack - Passenger
LOCAL INTERCONNECT NETWORK - 8 OF 11 - DRIVER REAR DOOR MODULE CONTROL
CIRCUIT
O = LIN.
- DRDM
- CEDS indicator
- Ambience lighting LED - Rear right door
- Ambience lighting LED - Rear right door handle
LOCAL INTERCONNECT NETWORK - 9 OF 11 - PASSENGER REAR DOOR MODULE CONTROL
CIRCUIT
O = LIN.
- PRDM
- CEDS indicator
- Ambience lighting LED - Rear left door
- Ambience lighting LED - Rear left door handle
LOCAL INTERCONNECT NETWORK - 10 OF 11 - DRIVER SEAT MODULE CONTROL CIRCUIT
O = LIN.
- DSM
- Seat switchpack - Driver
LOCAL INTERCONNECT NETWORK - 11 OF 11 - PASSENGER SEAT MODULE CONTROL
CIRCUIT
O = LIN.
- PSM
- Seat switchpack - Passenger
READ NEXT:
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the Communications Network, refer to the
relevant Description and Operation section in
the workshop manual. REFER to: Commu
REMOVAL AND INSTALLATION
REMOVAL
NOTES:
This procedure contains some variation in the illustrations depending
on the vehicle specification, but the
essential information is always correct.
This
REMOVAL AND INSTALLATION
GENERAL EQUIPMENT
REMOVAL
NOTES:
If a new Body Control Module/Gateway Module (BCM/GWM) is installed, a
new Remote Function Actuator
(RFA) must also be installed. This st
SEE MORE:
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the Exhaust System, refer to the relevant
Description and Operation section in the
workshop manual.
INSPECTION, VERIFICATION AND ADDITIONAL WARNINGS FOR ELECTRIC VEHICLES
WARNINGS:
A risk assessment must be performed befo
REMOVAL AND INSTALLATION
REMOVAL
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.
Make
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