Land Rover Defender: Communications Network - 90

DESCRIPTION AND OPERATION

COMPONENT LOCATION

COMPONENT LOCATION - 1 OF 4

NOTE: Right Hand Drive (RHD) vehicle is shown, Left Hand Drive (LHD) vehicle is similar.

1. Cruise Control Module (CCM)
2. Headlamp Control Module B (HCMB)
3. Image Processing Module (IPMA)
4. Anti-Lock Brake System Control Module (ABS)
5. Tire Pressure Monitoring System Control Module (TPM)
6. Transfer Case Control Module (TCCM)
7. Transmission Control Module (TCM)
8. Power Steering Control Module (PSCM)
9. Powertrain Control Module (PCM)
10. Headlamp Control Module A (HCM)

COMPONENT LOCATION - 2 OF 4

NOTE: RHD vehicle is shown, LHD vehicle is similar.

1. Touch Screen (FCDIM)
2. Head Up Display (HUD)
3. Instrument Panel Cluster (IPC)
4. Steering Wheel Module (SWM)
5. Rear Integrated Control Panel (FCIMB) (if equipped)
6. Second row seat heater control (if equipped)
7. Restraints Control Module (RCM)
8. Wireless Device Charger Module (WDCM)
9. Integrated Control Panel (FCIM)
10. Transmission Control Switch (TCS)

COMPONENT LOCATION - 3 OF 4

NOTE: RHD vehicle is shown, LHD vehicle is similar.

1. Body Control Module (BCM)/ Gateway Control Module (GWM)
2. Heating, ventilation, and air conditioning (HVAC) control module
3. Driver Assistance Domain Controller (DADC)
4. Electric Steering Column Lock Control Module (VIM)
5. Driver Door Control Module (DDM)
6. Seat Module - Driver/Passenger/Rear - Left/Right (DSM)
7. Driver Seat Climate Control Module (DSCCM)
8. Front Infotainment Control Module (IGM / ICCM)
9. Remote Function Actuator (RFA)
10. Seat Module - Driver/Passenger/Rear - Left/Right (PSM)
11. Passenger Seat Climate Control Module (PSCCM)
12. Passenger Door Control Module (PDM)
13. Near Field Sensing Module (NFSM)

COMPONENT LOCATION - 4 OF 4

NOTE: RHD vehicle is shown, LHD vehicle is similar.

1. Chassis Control Module (CHCM)
2. Side Obstacle Detection Control Module - Right (SODR)
3. Voltage Quality Module (VQM)
4. Towbar Control Module (TBM)
5. Audio Amplifier Control Module (AAM)
6. Side Obstacle Detection Control Module - Left (SODL)
7. 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 isolated system 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.

1. BCM/ GWM
2. J1962

ETHERNET

AW = ETHERNET: BF = ETHERNET WAKE-UP.

1. BCM/ GWM
2. NFSM
3. TCU
4. J1962
5. AAM
6. IGM / ICCM
7. IPMA
8. DADC

FLEXRAY

AX = FLEXRAY.

1. BCM/ GWM
2. PCM
3. DADC
4. PSCM
5. SWM
6. ABS
7. RCM
8. NFSM
9. TCM
10. CHCM
11. TCCM

HIGH SPEED CONTROLLER AREA NETWORK HUMAN MACHINE INTERFACE SYSTEMS BUS

BA = HS CAN HMI SYSTEMS BUS.

1. BCM/ GWM - Terminator module
2. FCDIM
3. HVAC control module
4. HUD
5. FCIMB
6. IPC - Terminator module
7. AAM
8. IGM / ICCM

HIGH SPEED CONTROLLER AREA NETWORK BODY SYSTEMS BUS

AZ = HS CAN BODY SYSTEMS BUS.

1. BCM/ GWM - Terminator (quantity 2) module
2. VIM
3. WDCM
4. PDM
5. PSM
6. DSM
7. TBM
8. RFA
9. DDM

HIGH SPEED CONTROLLER AREA NETWORK POWER MODE ZERO SYSTEMS BUS

AY = HS CAN POWER MODE ZERO SYSTEMS BUS.

1. BCM/ GWM - Terminator module
2. PCM - Only Ingenium I6 3.0L petrol
3. Turbocharger / Supercharger Control Module (TSCM) (if equipped)
4. Belt Integrated Starter Generator (BISG) (if equipped)
5. HVAC control module - Terminator module
6. Direct Current to Direct Current converter (DC/DC) (if equipped)
7. Battery Energy Control Module (BECM) (if equipped)

HIGH SPEED CONTROLLER AREA NETWORK UNDERBODY SYSTEMS BUS

BL = HS CAN UN SYSTEMS BUS.

1. DADC - Terminator module
2. TCS
3. HCM
4. PSCM
5. BCM/ GWM
6. IPMA
7. SODR
8. TPM
9. Rear Differential Control Module (RDCM)
10. HCMB
11. CCM
12. ABS - Terminator module

HIGH SPEED CONTROLLER AREA NETWORK ISOLATED SYSTEMS BUS

BM = HS CAN ISOLATED SYSTEMS BUS.

1. BCM/ GWM - Terminator module
2. TCU - Terminator module

PRIVATE CONTROLLER AREA NETWORK BUS - 1 OF 4 - SIDE OBSTACLE DETECTION CONTROL CIRCUIT

U = PRIVATE CAN BUS.

1. SODL
2. SODR

PRIVATE CONTROLLER AREA NETWORK BUS - 2 OF 4 - DRIVER ASSISTANCE DOMAIN CONTROLLER CIRCUIT

U = PRIVATE CAN BUS.

1. DADC
2. CCM

PRIVATE CONTROLLER AREA NETWORK BUS - 3 OF 4 - HVAC CONTROL CIRCUIT

U = PRIVATE CAN BUS.

1. HVAC control module
2. FCIM

PRIVATE CONTROLLER AREA NETWORK BUS - 4 OF 4 - HEADLAMP CONTROL CIRCUIT

U = PRIVATE CAN BUS.

1. HCMB
2. HCM

LOCAL INTERCONNECT NETWORK - 1 OF 9 - BODY CONTROL MODULE/GATEWAY CONTROL MODULE CONTROL CIRCUIT

O = LIN.

1. BCM/ GWM
2. Ambience lighting Light Emitting Diode (LED) - Rear left quarter pocket
3. Ambience lighting LED - Instrument panel
4. Ambience lighting LED - Rear right quarter pocket
5. Ambience lighting LED - Console
6. Rear View Mirror (RVM)
7. VQM
8. HCM
9. HCMB
10. Immobilizer Antenna Unit (IAU)
11. Roof opening panel control module (Glass roof has 1 node, canvas roof has 2 nodes)
12. Windshield wiper motor
13. Rain/light sensor
14. Battery Back-Up Sounder (BBUS)
15. Right steering wheel switch
16. SWM
17. Volumetric sensor

LOCAL INTERCONNECT NETWORK - 2 OF 9 - LEFT STEERING WHEEL SWITCH

O = LIN.

1. Left steering wheel switch
2. SWM
3. IGM / ICCM
4. IPC

LOCAL INTERCONNECT NETWORK - 3 OF 9 - POWERTRAIN CONTROL MODULE

O = LIN.

1. PCM
2. Active grille air shutter motor
3. Glow plug control module (diesel vehicles only)

LOCAL INTERCONNECT NETWORK - 4 OF 9 - BATTERY MONITORING SYSTEM

O = LIN.

1. BCM/ GWM
2. Battery Monitoring System (BMS) control module
3. Generator

LOCAL INTERCONNECT NETWORK - 5 OF 9 - HVAC CONTROL MODULE

O = LIN.

1. HVAC control module
2. Seat heater - Passenger
3. Seat heater - Second row left
4. PSCCM
5. Blower - Front
6. Recirculation motor
7. Cool air bypass motor
8. Distribution motor - Front left
9. Temperature blend motor - Front left
10. Temperature blend motor - Rear left
11. Temperature blend motor - Front right
12. Temperature blend motor - Rear right
13. Auxiliary climate control face/feet motor
14. Distribution motor - Front right
15. Distribution motor - Demist
16. Humidity sensor
17. DSCCM
18. Seat heater - Second row right
19. Seat heater - Driver
20. Fuel Fired Booster Heater Control Module (AHCM)
21. AHCM receiver

LOCAL INTERCONNECT NETWORK - 6 OF 9 - DRIVER DOOR CONTROL MODULE CONTROL CIRCUIT

O = LIN.

1. DDM
2. Door switchpack - Driver
3. Clear Exit Detection System (CEDS) indicator
4. Ambience lighting LED - Driver door
5. Ambience lighting LED - Driver door handle
6. Seat memory switchpack - Driver

LOCAL INTERCONNECT NETWORK - 7 OF 9 - PASSENGER DOOR CONTROL MODULE CONTROL CIRCUIT

O = LIN.

1. PDM
2. Clear Exit Detection System (CEDS) indicator
3. Ambience lighting Light Emitting Diode (LED) - Passenger door
4. Ambience lighting LED - Passenger door handle
5. Seat memory switchpack - Passenger

LOCAL INTERCONNECT NETWORK - 8 OF 9 - DRIVER SEAT CONTROL CIRCUIT

O = LIN.

1. DSM
2. Seat switchpack - Driver

LOCAL INTERCONNECT NETWORK - 9 OF 9 - PASSENGER SEAT MODULE CONTROL CIRCUIT

O = LIN.

1. PSM
2. Seat switchpack - Passenger

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