Module Communications Network Land Rover Range Rover Sport I

SPECIFICATIONS

TORQUE SPECIFICATIONS

GENERAL

Communication Network (Media Oriented System Transport MOST) Sheet 1 of 3

Note. P = MOST

Scheme 1

Communication Network (CAN bus) Sheet 2 of 3

Note. D= HS CAN Bus N= MS CAN Bus O= LIN Bus

Scheme 2

Communication Network (CAN bus) Sheet 3 of 3

Note. D= HS CAN Bus N= MS CAN Bus O= LIN Bus

Scheme 3

A number of different types of data bus are incorporated into the vehicle wiring harnesses for the transmission of commands and information between control modules. The bus configuration installed on a particular vehicle depends on the model and equipment level.

The available types of bus systems on the vehicle are

1. High speed controller area network (CAN) bus
2. Medium speed CAN bus
3. Media Orientated System Transport (MOST) bus
4. Gigabit Video Interface (GVIF)
5. Local Interconnect Network (LIN) bus
6. Security Local Interconnect (SLIN) bus
7. Ai Net

CAN

The CAN bus is a high speed broadcast network where the control modules automatically transmit information on the bus every few microseconds. The other buses are low speed networks which are mainly event driven, i.e. an electronic control module outputs a message only in response to a request message from another control module or a hard wired input from a switch or sensor.

A twisted pair of wires are used for the CAN bus and single wires are used for all of the other buses. Bus wires can be repaired using crimped connections. The unwound length of CAN bus wires must not exceed 40 mm (1.6 in).

Two CAN busses are employed on the vehicle

1. Medium speed (MS)
2. High speed (HS)

The medium speed bus connects the following control modules

1. Integrated Head Unit (IHU) or low line head unit
2. Heating and ventilation control module
3. Fuel fired booster heater
4. Parking aid control module
5. TPMS control module
6. CJB

The high speed bus connects the following control modules

1. Steering angle sensor
2. Air suspension
3. Electric Park Brake (EPB) control module
4. Electronic rear differential control module
5. Terrain Response™
6. RCM
7. ECM
8. TCM
9. Adaptive Front lighting System (AFS) module
10. ABS module.

Both the medium and high speed CAN bus are connected to the instrument cluster and the diagnostic socket at one end. The medium speed bus terminates at the CJB, while the high speed bus terminates at the ABS control module.

Control modules are connected in either a loop, CAN in/CAN out, or a spur configuration. Should a control module that is looped fail, the bus system will fail at that point. Should a spurred control module fail the rest of the bus system will be unaffected by the faulty control module.

MEDIA ORIENTATED SYSTEM TRANSPORT (MOST)

The MOST bus uses a fibre optic cable to transport data and audio around the entertainment and information system. The fibre optic cable is arranged in a ring, with each unit on the bus having a MOST in and MOST out connection.

MOST is a synchronous network. A timing master supplies the clock and all other devices synchronize their operation to this clock. The timing master for the MOST network is the Integrated Head Unit (IHU).

Key features of the MOST network are

1. High data transfer rate
2. Support for up to 64 devices
3. Support of asynchronous and synchronous data transfer
4. Reduced cabling
5. Simple connectors

When handling the MOST fibre optic cables the following safety precautions should be observed

1. The cable has a minimum bend radius of 25mm.
2. It is advisable not to look directly into the connector of a live cable.
3. The MOST cable cannot be repaired, replacement overlay harnesses are available to replace damaged cables.

GIGABIT VIDEO INTERFACE (GVIF)

The GVIF bus is a Sony proprietary bus for the transmission of video between a transmitter device and a display device. In this instance it is used to transmit video from the navigation computer to the Touch Screen Display (TAD) only.

LOCAL INTERCONNECT NETWORK (LIN) BUS

There are two LIN buses on the vehicle. One connects the rain sensor, roof opening panel and memory seats to the central junction box and the other connects the BBUS to the CJB.

The LIN bus has a master/slave configuration. Within the master is stored a 'schedule table'. This is a list of all the LIN frames or packets in order of which one gets sent when and how many times within a particular cycle. The master sends out a header on the bus which will identify to the slaves whose turn it is to transmit a frame. The slave then fills the space after the header with the contents of the frame. The frame identifiers are all sourced from the LIN specification, and the frame identifiers are grouped by the size of the frame in bytes. All the LIN nodes are optional fit, consequently there is a different schedule table for each permutation. The bus master switches between these based on the information held within the car configuration file. The CJB also acts as a bi-directional gateway between the medium speed CAN bus and the LIN bus by passing signals between the two buses.

The LIN bus is a single wire and operates at 9.6Kbs. The protocol used on the LIN bus is defined by the LIN consortium.

SONY PHILIPS DIGITAL INTERFACE FORMAT (SPDIF)

The SPDIF is an digital optical system connected between the digital versatile disc (DVD) autochanger and the audio amplifier and is used to output the audio from the DVD autochanger to the audio amplifier.

DIAGNOSTIC SOCKET

The diagnostic socket allows the transfer of information between the vehicle electronic control modules and T4 on the high or medium speed CAN bus, or indirectly via the instrument cluster. The diagnostic socket is located in the lower instrument panel closing panel, on the drivers side below the steering column.

IS BUS

The IS bus is a dedicated bus system used to transfer information between the RSE module and the two RSE screens.

AI NET

The Ai Net is an Alpine proprietary bus used to communicate between the RSE module and the DVD autochanger.

PRINCIPLES OF OPERATION

For a detailed description of the Communications Network, refer to Communications Network - Description and Operation .

INSPECTION AND VERIFICATION

1. Verify the customer concern.
2. Visually inspect for obvious signs of damage and system integrity. Visual Inspection Electrical Fuses (refer to electrical guide) Wiring harness Correct engagement of electrical connectors Loose or corroded connections Routing of fibre optic harnesses Correct engagement of optical connectors Correct placement of optical connectors (ring order) Correct assembly of optical connectors (backout, etc) Damage to fibre (chafing, abrasion, kinking, cuts, etc)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.

CAN NETWORK INTEGRITY CHECKS

In the event that one or more control modules are not communicating on either the Medium Speed (MS) or High Speed (HS) CAN Buses, checks can be performed to confirm the integrity of the CAN harness.

The following information is applicable to HS and MS CAN Buses accessible via the J1962 diagnostic connector.

Module Connections to the CAN Harness

Modules are connected to the CAN harness either in a 'loop' or 'spur' configuration. In the 'loop' type configuration the CAN harness loops into the module (via two connector pins) and then loops out of the module (via another two connector pins). In the 'spur' type configuration, a harness spur is spliced into the main 'backbone' of the CAN harness and the module is connected to the harness spur via two connector pins.

CAN Harness Architecture

For a detailed description of the CAN Networks and architecture, refer to Communications Network - Description and Operation

IDS Vehicle Integrity Test

If a control module is suspected of non-communication, the Network Integrity test application available on the manufacturer approved diagnostic system can be used to confirm if communication is possible between the control modules on the vehicle and the manufacturer approved diagnostic system (via the J1962 diagnostic connector). The results from the test can be used to determine if either a single module or multiple modules are failing to communicate.

CAN Terminating Modules

If the Network Integrity test indicates that one or more module on one of the CAN networks (HS or MS) are failing to communicate, there are several checks that can be made. The first step is to identify if both of the CAN terminating modules on each individual CAN Bus are communicating. If both CAN terminating modules for each individual CAN Bus are communicating (identified via the Network Integrity test), then it can be confirmed that the main 'backbone' of the CAN harness is complete. The main 'backbone' of the CAN harness consists of all the modules connected to the CAN harness via a 'loop' configuration and also includes the two terminating modules.

Communication with both CAN terminating modules via the Network Integrity test confirms the physical integrity of the main 'backbone' of the CAN harness (and the harness spur to the J1962 diagnostic connector). This means that there is no requirement to check the resistance of the CAN Network. This is because the standard check for 60 ohms across the CAN High and CAN Low lines will not provide any additional information regarding the physical condition of the CAN harness, beyond what has already been determined from the Network Integrity test.

Non-Communication of a Terminating Module

If a Network Integrity test reveals a terminating module is failing to communicate it can indicate a break in the main 'backbone' of the CAN harness. The first checks should always be to confirm the power and ground supplies to the non-communicating module are correct. Providing these are correct, the resistance between the CAN High and CAN Low lines at the J1962 connector can be checked to determine the integrity of the main 'backbone' of the CAN harness. After disconnecting the battery a reading of 120 ohms would indicate an open circuit in the main 'backbone' of the CAN harness. Alternatively, a reading of 60 ohms would indicate that there is no open circuit fault with the main 'backbone' of the CAN harness.

It is worth noting that even if one of the terminating modules is disconnected from the CAN harness, communications between the modules still connected may still be possible. Therefore communication between the manufacturer approved diagnostic system and the connected modules may also be possible.

Locating CAN Harness Open Circuits

In the case where multiple modules, including a terminating module, are failing to communicate, having first confirmed the power and ground supplies are correct, the approximate location of the open circuit can be identified from analysis of the Network Integrity test results and reference to the relevant CAN network circuit diagrams. For example, if an open circuit existed in a certain position on the CAN harness, any module positioned on the Network between the J1962 connector and the open circuit should return a response during the Network Integrity test. No responses would be returned from any modules past the open circuit fault in the Network.

CAN Harness 'Spur' Type Configuration Circuits

If, after the initial checks (Network Integrity test using the manufacturer approved diagnostic system, and power and ground supplies to the module have been checked and confirmed as correct), a module that is connected to the CAN harness via a 'spur' type configuration is suspected of not communicating, then the physical integrity of the CAN harness 'spur' can be checked.

This is most easily undertaken by individually checking the continuity of the CAN High and CAN Low lines between the non-communicating module connector (with the module disconnected) and the J1962 diagnostic connector.

'Lost Communications' DTCs

As well as the methods described so far in this document, which can be used to determine the location of an open circuit in the CAN harness, 'Lost Communications' DTCs can also be used for this purpose. Lost communication DTCs mean that a module is not receiving CAN information from another module.

For example, if a global DTC read were to be carried out, only DTCs stored in the modules that the manufacturer approved diagnostic system could communicate with would be displayed. If there was an open circuit fault in a certain position on the CAN harness, the modules that could display DTCs would all be prior to the open circuit on the Network, and these modules should display 'Lost Communications' DTCs with all the modules located on the Network past the open circuit fault.

'Bus off' DTCs

The references to bus and its condition refer to the network concerned and the modules on that network.

If a module logs a 'Bus Off' DTC, it means that the module has detected CAN transmission errors and has disabled its's own CAN transmissions and disconnected itself from the network in an attempt to allow the rest of the network to function. At this point the 'Bus Off' DTC is set. A common cause of 'Bus Off' DTCs can be a short circuit in the CAN network.

MEDIA ORIENTED SYSTEMS TRANSPORT (MOST) DIAGNOSIS

Overview

The basic guidelines are covered in the description and operation section, such as not attempting to repair fibre optic cables, but additional precautions include

1. Do not touch the exposed ends of the optical fibres (grease from skin can contaminate the fibre)
2. Whenever the fibre optic cable is disconnected, cover the connectors to prevent dust contamination
3. Do not expose the fibre optic cable to heat
4. Do not bend the fibre optic cable through less than a 25 mm (one inch) radius
5. Do not use laser pens to test the fibre optic cable's ability to pass light
6. There is a dedicated tester to use with the MOST network modules and fibre optic harness to assist with diagnosis and to test the fibre optic cable's ability to pass light

MOST tester

Before connecting the tester to the network, turn on the unit and check that the red power on indicator is illuminated.

If not, the battery should be replaced before using the tester.

2+0 SELF-TEST

1. Set the connector selector switch to 2+0.
2. Select beep or LED on the tester, depending on your choice of indicator.
3. Turn the tester on and check the operation of the power indicator.
4. Using the 2+0 loop-back lead from the kit, push it into the 2+0 connector housing in the tester until it clicks into place.
5. Press the red test button in the center of the tester.
6. Depending on your choice in step 2 , the tester will give either an audible tone or a green light. If the tester continues to give a tone or light after the test button is released this does not indicate a fault, only that there is a signal feed-back within the tester which will stop when the loop-back lead is removed.

2+4 SELF-TEST

Carry out the self-test in the same way as for 2+0, but using the 2+4 loop-back lead and select 2+4 on the connector selector switch.

Vehicle diagnosis

1. Use the approved diagnostic system or a scan tool to retrieve any DTCs.
2. Set the connector selector switch to 2+0 .
3. Disconnect the intermediate fibre optic cable connector and connect the male half to the tester connector at the top of the unit using the adaptor in the kit.
4. Turn the tester on and check the operation of the power indicator.
5. Set the LED/beep selector to LED .
6. Turn the ignition switch to the ON position.
7. If the green LED is active, a signal has been received indicating that the first half of the optical ring is functioning.
8. If the green LED is NOT active, no signal has been received indicating that the first half of the optical ring is NOT functioning. A ring break code should be set as a result of this. Use the approved diagnostic system to trace the fault and clear the code.

Central Junction Box (CJB)

Note. If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual, or determine if any prior approval program is in operation, prior to the installation of a new module/component.

Note. Generic scan tools may not read the codes listed, or may read only five digit codes. Match the five digits from the scan tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give extra information read by the manufacturer-approved diagnostic system).

Note. When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places and with a current calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.

Note. Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

Note. If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.

REMOVAL

Note. The BJB is an integral component of the engine compartment wiring harness and cannot be removed separately.

Scheme 4

Scheme 5

Scheme 6

Scheme 7

Scheme 8

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

Scheme 18

Scheme 19

Scheme 20

Scheme 21

Scheme 22

Scheme 23

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

Scheme 29

Scheme 30

Scheme 31

Scheme 32

Scheme 33

Scheme 34

Scheme 35

Scheme 36

Scheme 37

Scheme 38

Scheme 39

Scheme 40

1. Disconnect the battery ground cable. For additional information, refer to: «Specifications»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-and-charging-system-general-information__specifications) information.
2. Make the SRS system safe. For additional information, refer to: «Standard Workshop Practices»(/land-rover/range-rover-sport/i-2005-2009/remont/oem-general-information/#general-information) information.
3. Remove the engine cover. For additional information, refer to: «Engine Cover V8 S/C 4.2L Petrol»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#interior-trim-and-omamentation) information.
4. Remove the radiator grille. For additional information, refer to: «Radiator Grille»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#exterior-trim-and-omamentation) information.
5. Remove the air cleaner assembly. For additional information, refer to: «Air Cleaner»(/land-rover/range-rover-sport/i-2005-2009/remont/mechanical/#intake-air-distribution-and-filtering-v8-sc-42l-petrol) information.
6. Remove the four-wheel drive control module. For additional information, refer to: «Four-Wheel Drive (4WD) Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/transfer-case/#four-wheel-drive-systems) information.
7. Remove the battery tray. For additional information, refer to: «Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
8. Remove the auxiliary battery tray. For additional information, refer to: «Auxiliary Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
9. Remove the ECM cover. Disconnect 2 electrical connectors for access. Disconnect the 2 ECM electrical connectors. Remove the 4 Torx screws.
10. Remove the ECM. Remove the ECM top cover.
11. Remove the BJB cover. Release the clip.
12. Disconnect the battery positive cable from the BJB. Remove the nut.
13. Remove both cowl side trim panels. For additional information, refer to: «Cowl Side Trim Panel»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#interior-trim-and-omamentation) information.
14. Remove the CJB. For additional information, refer to: «Central Junction Box (CJB)»(/land-rover/range-rover-sport/i-2005-2009/remont/communication-devices/#module-communications-network__central-junction-box-cjb) .
15. Release the CJB bracket. Release the 3 upper wiring harness clips. Remove the 2 bolts.
16. Remove the CJB bracket. Disconnect the 2 electrical connectors. Release the 3 lower wiring harness clips. Remove the 2 nuts.
17. Release the 2 ground cables from the lower A-pillar. Remove the nut.
18. Disconnect the heater motor electrical connector.
19. Release the BJB from the bracket. Remove the bolt.
20. Remove the battery ground cable. Remove the nut. Release the additional ground cable.
21. Release the BJB wiring harness from the bulkhead. Disconnect the 6 electrical connectors. Release the grommet.
22. Raise and support the vehicle.
23. Remove both front fender splash shields. For additional information, refer to: «Fender Splash Shield»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-body-panels/#front-end-body-panels) information.
24. Remove both headlamps. For additional information, refer to: «Headlamp Assembly»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-lights/#exterior-lighting__headlamp-assembly) information.
25. Passenger side: Disconnect the engine wiring harness electrical connector.
26. Passenger side: Disconnect the transfer case electrical connector.
27. LH side: Disconnect the washer jet hose.
28. LH side: Disconnect the adaptive front lighting module electrical connector.
29. LH side: Disconnect the 3 body panel electrical connectors.
30. LH side: Release the 3 body panel ground cables. Remove the nut.
31. LH side: Release the 2 air suspension pipes from the wiring harness. Release the 7 clips.
32. LH side: Disconnect the ABS electrical connector.
33. LH side: Release 3 engine compartment ground cables. Remove the 3 nuts. Release the 2 clips.
34. LH side: Release the washer reservoir wiring harness. Disconnect the 3 electrical connectors. Disconnect the 2 washer jet hoses.
35. LH side: Disconnect the coolant expansion tank level switch electrical connector.
36. LH side: Disconnect the brake pad wear sensor electrical connector.
37. LH side: Release the wiring harness. Release the grommet. Release the 4 clips.
38. Remove the windshield wiper motor. For additional information, refer to: «Windshield Wiper Motor»(/land-rover/range-rover-sport/i-2005-2009/remont/wiperwasher-systems/#wipers-and-washers) information.
39. Remove the hood pad. Remove the 11 clips.
40. Release the hood wiring harness. Disconnect the 2 washer jet hoses. Disconnect the 2 electrical connectors. Release the 10 clips. Remove the wiring harness cover. Release the grommet.
41. Disconnect the brake booster vacuum pump electrical connector.
42. Disconnect the A/C pressure transducer electrical connector.
43. Disconnect the battery to engine compartment wiring harness electrical connector.
44. Release the wiring harness from the plenum. Release the 2 clips. Remove the 3 nuts.
45. Disconnect the brake fluid reservoir electrical connector.
46. Disconnect the ABS module electrical connector.
47. Remove the air suspension control module. For additional information, refer to: «Air Suspension Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/electronic-suspension/#vehicle-dynamic-suspension__air-suspension-control-module) information.
48. Driver side: Disconnect 2 electrical connectors from the lower A-pillar.
49. Driver side: Release the wiring harness from the bulkhead. Release the grommet.
50. RH side: Disconnect the 3 body panel electrical connectors.
51. RH side: Release the 3 body panel ground cables. Remove the nut.
52. RH side: Disconnect the ABS electrical connector.
53. RH side front: Release the air suspension pipe from the wiring harness clip.
54. RH side: Release 2 engine compartment ground cables. Remove the 2 nuts.
55. Disconnect the ambient air temperature sensor electrical connector.
56. Disconnect both front impact severity sensor electrical connectors. Release the 3 clips.
57. RH side: Release the wiring harness. Release the 9 clips.
58. Disconnect the hood switch electrical connector.
59. Disconnect both horn electrical connectors.
60. If installed, disconnect the speed control module electrical connector.
61. If installed, disconnect the pollution sensor electrical connector. Release the clip. Release the grommet.
62. Release the hood release cable. Release from the 3 clips.
63. Disconnect the front bumper wiring harness electrical connector.
64. With assistance, remove the BJB and wiring harness.

INSTALLATION

1. With assistance, install the BJB and wiring harness.
2. Connect the front bumper wiring harness electrical connector.
3. Attach the hood release cable. Secure with the clips.
4. If installed, connect the pollution sensor electrical connector. Install the grommet. Secure the clip.
5. If installed, connect the speed control module electrical connector.
6. Connect the horn electrical connectors.
7. Connect the hood switch electrical connector.
8. RH side: Secure the wiring harness. Secure the clips.
9. Connect both front impact electrical connectors. Secure the clips.
10. RH side: Attach the air suspension pipe.
11. Connect the ambient air temperature sensor electrical connector.
12. RH side: Attach the engine compartment ground cables. Tighten the nuts to 25 Nm (18 lb.ft).
13. RH side: Connect the ABS electrical connector.
14. RH side: Attach the body panel ground cables. Tighten the nut to 25 Nm (18 lb.ft).
15. RH side: Connect the body panel electrical connectors.
16. Driver side: Attach the wiring harness to the bulkhead. Install the grommet.
17. Driver side: Connect the lower A-pillar electrical connectors.
18. Install the air suspension control module. For additional information, refer to: «Air Suspension Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/electronic-suspension/#vehicle-dynamic-suspension__air-suspension-control-module) information.
19. Connect the ABS module electrical connector.
20. Connect the brake fluid reservoir electrical connector.
21. Attach the wiring harness to the plenum. Secure the clips. Tighten the nuts to 4 Nm (3 lb.ft).
22. Connect the battery to engine compartment wiring harness electrical connector.
23. Connect the A/C pressure transducer electrical connector.
24. Connect the brake booster vacuum pump electrical connector.
25. Attach the hood wiring harness. Install the grommet. Install the cover. Secure with the clips. Connect the electrical connectors. Connect the washer jet hoses.
26. Install the hood pad. Install the clips.
27. Install the windshield wiper motor. For additional information, refer to: «Windshield Wiper Motor»(/land-rover/range-rover-sport/i-2005-2009/remont/wiperwasher-systems/#wipers-and-washers) information.
28. LH side: Attach the wiring harness. Install the grommet. Secure the clips.
29. LH side: Connect the brake pad wear sensor electrical connector.
30. LH side: Connect the coolant expansion tank level switch electrical connector.
31. LH side: Attach the washer reservoir wiring harness. Connect the washer jet hoses. Connect the electrical connectors.
32. LH side: Attach the engine compartment ground cables. Secure the clips. Tighten the nuts to 25 Nm (18 lb.ft).
33. LH side: Connect the ABS electrical connector.
34. LH side: Attach the air suspension pipes. Secure the clips.
35. LH side: Attach the body panel ground cables. Tighten the nut to 25 Nm (18 lb.ft).
36. LH side: Connect the body panel electrical connectors.
37. LH side: Connect the adaptive front lighting module electrical connector.
38. LH side: Connect the washer jet hose.
39. Passenger side: Connect the transfer case electrical connector.
40. Passenger side: Connect the engine wiring harness electrical connector.
41. Install the headlamps. For additional information, refer to: «Headlamp Assembly»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-lights/#exterior-lighting__headlamp-assembly) information.
42. Install the fender splash shields. For additional information, refer to: «Fender Splash Shield»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-body-panels/#front-end-body-panels) information.
43. Attach the BJB wiring harness to the bulkhead. Connect the electrical connectors. Install the grommet.
44. Install the battery ground cable. Attach the additional ground cable. Tighten the nut to 25 Nm (18 lb.ft).
45. Secure the BJB to the bracket. Tighten the bolt to 6 Nm (4 lb.ft).
46. Connect the heater motor electrical connector.
47. Connect the ground cables to the lower A-pillar. Tighten the nut to 10 Nm (7 lb.ft).
48. Install the CJB bracket. Tighten the nuts to 10 Nm (7 lb.ft). Secure the clips. Connect the electrical connectors. Tighten the bolts to 25 Nm (18 lb.ft).
49. Install the CJB. For additional information, refer to: «Central Junction Box (CJB)»(/land-rover/range-rover-sport/i-2005-2009/remont/communication-devices/#module-communications-network__central-junction-box-cjb) .
50. Connect the battery positive cable to the BJB. Tighten the nut to 25 Nm (18 lb.ft).
51. Install the BJB cover. Secure the clip.
52. Install the ECM. Install the ECM top cover.
53. Install the ECM cover. Tighten the Torx screws. Connect the electrical connectors.
54. Install the auxiliary battery tray. For additional information, refer to: «Auxiliary Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
55. Install the battery tray. For additional information, refer to: «Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
56. Install the four-wheel drive control module. For additional information, refer to: «Four-Wheel Drive (4WD) Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/transfer-case/#four-wheel-drive-systems) information.
57. Install the air cleaner assembly. For additional information, refer to: «Air Cleaner»(/land-rover/range-rover-sport/i-2005-2009/remont/mechanical/#intake-air-distribution-and-filtering-v8-sc-42l-petrol) information.
58. Install the radiator grille. For additional information, refer to: «Radiator Grille»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#exterior-trim-and-omamentation) information.
59. Install the engine cover. For additional information, refer to: «Engine Cover V8 S/C 4.2L Petrol»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#interior-trim-and-omamentation) information.
60. Connect the battery ground cable. For additional information, refer to: «Specifications»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-and-charging-system-general-information__specifications) information.

Note. The BJB is an integral component of the engine compartment wiring harness and cannot be removed separately.

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

Scheme 46

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Scheme 52

Scheme 53

Scheme 54

Scheme 55

Scheme 56

Scheme 57

Scheme 58

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

Scheme 66

Scheme 67

Scheme 68

Scheme 69

Scheme 70

Scheme 71

Scheme 72

Scheme 73

1. Disconnect the battery ground cable. For additional information, refer to: «Specifications»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-and-charging-system-general-information__specifications) information.
2. Make the SRS system safe. For additional information, refer to: «Standard Workshop Practices»(/land-rover/range-rover-sport/i-2005-2009/remont/oem-general-information/#general-information) information.
3. Remove the engine cover. For additional information, refer to: «Engine Cover V8 4.4L Petrol»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#interior-trim-and-omamentation) information.
4. Remove the radiator grille. For additional information, refer to: «Radiator Grille»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#exterior-trim-and-omamentation) information.
5. Remove the air cleaner assembly. For additional information, refer to: «Air Cleaner»(/land-rover/range-rover-sport/i-2005-2009/remont/mechanical/#intake-air-distribution-and-filtering-v8-44l-petrol) information.
6. Remove the four-wheel drive control module. For additional information, refer to: «Four-Wheel Drive (4WD) Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/transfer-case/#four-wheel-drive-systems) information.
7. Remove the battery tray. For additional information, refer to: «Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
8. Remove the auxiliary battery tray. For additional information, refer to: «Auxiliary Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
9. Remove the ECM cover. Disconnect 2 electrical connectors for access. Disconnect the 2 ECM electrical connectors. Remove the 4 Torx screws.
10. Remove the ECM. Remove the ECM top cover.
11. Remove the BJB cover. Release the clip.
12. Disconnect the battery positive cable from the BJB. Remove the nut.
13. Remove both cowl side trim panels. For additional information, refer to: «Cowl Side Trim Panel»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#interior-trim-and-omamentation) information.
14. Remove the CJB. For additional information, refer to: «Central Junction Box (CJB)»(/land-rover/range-rover-sport/i-2005-2009/remont/communication-devices/#module-communications-network__central-junction-box-cjb) .
15. Release the CJB bracket. Release the 3 upper wiring harness clips. Remove the 2 bolts.
16. Remove the CJB bracket. Disconnect the 2 electrical connectors. Release the 3 lower wiring harness clips. Remove the 2 nuts.
17. Release the 2 ground cables from the lower A-pillar. Remove the nut.
18. Disconnect the heater motor electrical connector.
19. Release the BJB from the bracket. Remove the bolt.
20. Remove the battery ground cable. Remove the nut. Release the additional ground cable.
21. Release the BJB wiring harness from the bulkhead. Disconnect the 6 electrical connectors. Release the grommet.
22. Raise and support the vehicle.
23. Remove both front fender splash shields. For additional information, refer to: «Fender Splash Shield»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-body-panels/#front-end-body-panels) information.
24. Remove both headlamps. For additional information, refer to: «Headlamp Assembly»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-lights/#exterior-lighting__headlamp-assembly) information.
25. Passenger side: Disconnect the engine wiring harness electrical connector.
26. Passenger side: Disconnect the transfer case electrical connector.
27. LH side: Disconnect the washer jet hose.
28. LH side: Disconnect the adaptive front lighting module electrical connector.
29. LH side: Disconnect the 3 body panel electrical connectors.
30. LH side: Release the 3 body panel ground cables. Remove the nut.
31. LH side: Release the 2 air suspension pipes from the wiring harness. Release the 7 clips.
32. LH side: Disconnect the ABS electrical connector.
33. LH side: Release 3 engine compartment ground cables. Remove the 3 nuts. Release the 2 clips.
34. LH side: Release the washer reservoir wiring harness. Disconnect the 3 electrical connectors. Disconnect the 2 washer jet hoses.
35. LH side: Disconnect the coolant expansion tank level switch electrical connector.
36. LH side: Disconnect the brake pad wear sensor electrical connector.
37. LH side: Release the wiring harness. Release the grommet. Release the 4 clips.
38. Remove the windshield wiper motor. For additional information, refer to: «Windshield Wiper Motor»(/land-rover/range-rover-sport/i-2005-2009/remont/wiperwasher-systems/#wipers-and-washers) information.
39. Remove the hood pad. Remove the 11 clips.
40. Release the hood wiring harness. Disconnect the 2 washer jet hoses. Disconnect the 2 electrical connectors. Release the 10 clips. Remove the wiring harness cover. Release the grommet.
41. Disconnect the brake booster vacuum pump electrical connector.
42. Disconnect the A/C pressure transducer electrical connector.
43. Disconnect the battery to engine compartment wiring harness electrical connector.
44. Release the wiring harness from the plenum. Release the 2 clips. Remove the 3 nuts.
45. Disconnect the brake fluid reservoir electrical connector.
46. Disconnect the ABS module electrical connector.
47. Remove the air suspension control module. For additional information, refer to: «Air Suspension Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/electronic-suspension/#vehicle-dynamic-suspension__air-suspension-control-module) information.
48. Driver side: Disconnect 2 electrical connectors from the lower A-pillar.
49. Driver side: Release the wiring harness from the bulkhead. Release the grommet.
50. RH side: Disconnect the 3 body panel electrical connectors.
51. RH side: Release the 3 body panel ground cables. Remove the nut.
52. RH side: Disconnect the ABS electrical connector.
53. RH side front: Release the air suspension pipe from the wiring harness clip.
54. RH side: Release 2 engine compartment ground cables. Remove the 2 nuts.
55. Disconnect the ambient air temperature sensor electrical connector.
56. Disconnect both front impact severity sensor electrical connectors. Release the 3 clips.
57. RH side: Release the wiring harness. Release the 9 clips.
58. Disconnect the hood switch electrical connector.
59. Disconnect both horn electrical connectors.
60. If installed, disconnect the speed control module electrical connector.
61. If installed, disconnect the pollution sensor electrical connector. Release the clip. Release the grommet.
62. Release the hood release cable. Release from the 3 clips.
63. Disconnect the front bumper wiring harness electrical connector.
64. With assistance, remove the BJB and wiring harness.

1. With assistance, install the BJB and wiring harness.
2. Connect the front bumper wiring harness electrical connector.
3. Attach the hood release cable. Secure with the clips.
4. If installed, connect the pollution sensor electrical connector. Install the grommet. Secure the clip.
5. If installed, connect the speed control module electrical connector.
6. Connect the horn electrical connectors.
7. Connect the hood switch electrical connector.
8. RH side: Secure the wiring harness. Secure the clips.
9. Connect both front impact electrical connectors. Secure the clips.
10. RH side: Attach the air suspension pipe.
11. Connect the ambient air temperature sensor electrical connector.
12. RH side: Attach the engine compartment ground cables. Tighten the nuts to 25 Nm (18 lb.ft).
13. RH side: Connect the ABS electrical connector.
14. RH side: Attach the body panel ground cables. Tighten the nut to 25 Nm (18 lb.ft).
15. RH side: Connect the body panel electrical connectors.
16. Driver side: Attach the wiring harness to the bulkhead. Install the grommet.
17. Driver side: Connect the lower A-pillar electrical connectors.
18. Install the air suspension control module. For additional information, refer to: «Air Suspension Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/electronic-suspension/#vehicle-dynamic-suspension__air-suspension-control-module) information.
19. Connect the ABS module electrical connector.
20. Connect the brake fluid reservoir electrical connector.
21. Attach the wiring harness to the plenum. Secure the clips. Tighten the nuts to 4 Nm (3 lb.ft).
22. Connect the battery to engine compartment wiring harness electrical connector.
23. Connect the A/C pressure transducer electrical connector.
24. Connect the brake booster vacuum pump electrical connector.
25. Attach the hood wiring harness. Install the grommet. Install the cover. Secure with the clips. Connect the electrical connectors. Connect the washer jet hoses.
26. Install the hood pad. Install the clips.
27. Install the windshield wiper motor. For additional information, refer to: «Windshield Wiper Motor»(/land-rover/range-rover-sport/i-2005-2009/remont/wiperwasher-systems/#wipers-and-washers) information.
28. LH side: Attach the wiring harness. Install the grommet. Secure the clips.
29. LH side: Connect the brake pad wear sensor electrical connector.
30. LH side: Connect the coolant expansion tank level switch electrical connector.
31. LH side: Attach the washer reservoir wiring harness. Connect the washer jet hoses. Connect the electrical connectors.
32. LH side: Attach the engine compartment ground cables. Secure the clips. Tighten the nuts to 25 Nm (18 lb.ft).
33. LH side: Connect the ABS electrical connector.
34. LH side: Attach the air suspension pipes. Secure the clips.
35. LH side: Attach the body panel ground cables. Tighten the nut to 25 Nm (18 lb.ft).
36. LH side: Connect the body panel electrical connectors.
37. LH side: Connect the adaptive front lighting module electrical connector.
38. LH side: Connect the washer jet hose.
39. Passenger side: Connect the transfer case electrical connector.
40. Passenger side: Connect the engine wiring harness electrical connector.
41. Install the headlamps. For additional information, refer to: «Headlamp Assembly»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-lights/#exterior-lighting__headlamp-assembly) information.
42. Install the fender splash shields. For additional information, refer to: «Fender Splash Shield»(/land-rover/range-rover-sport/i-2005-2009/remont/exterior-body-panels/#front-end-body-panels) information.
43. Attach the BJB wiring harness to the bulkhead. Connect the electrical connectors. Install the grommet.
44. Install the battery ground cable. Attach the additional ground cable. Tighten the nut to 25 Nm (18 lb.ft).
45. Secure the BJB to the bracket. Tighten the bolt to 6 Nm (4 lb.ft).
46. Connect the heater motor electrical connector.
47. Connect the ground cables to the lower A-pillar. Tighten the nut to 10 Nm (7 lb.ft).
48. Install the CJB bracket. Tighten the nuts to 10 Nm (7 lb.ft). Secure the clips. Connect the electrical connectors. Tighten the bolts to 25 Nm (18 lb.ft).
49. Install the CJB. For additional information, refer to: «Central Junction Box (CJB)»(/land-rover/range-rover-sport/i-2005-2009/remont/communication-devices/#module-communications-network__central-junction-box-cjb) .
50. Connect the battery positive cable to the BJB. Tighten the nut to 25 Nm (18 lb.ft).
51. Install the BJB cover. Secure the clip.
52. Install the ECM. Install the ECM top cover.
53. Install the ECM cover. Tighten the Torx screws. Connect the electrical connectors.
54. Install the auxiliary battery tray. For additional information, refer to: «Auxiliary Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
55. Install the battery tray. For additional information, refer to: «Battery Tray»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-mounting-and-cables) information.
56. Install the four-wheel drive control module. For additional information, refer to: «Four-Wheel Drive (4WD) Control Module»(/land-rover/range-rover-sport/i-2005-2009/remont/transfer-case/#four-wheel-drive-systems) information.
57. Install the air cleaner assembly. For additional information, refer to: «Air Cleaner»(/land-rover/range-rover-sport/i-2005-2009/remont/mechanical/#intake-air-distribution-and-filtering-v8-44l-petrol) information.
58. Install the radiator grille. For additional information, refer to: «Radiator Grille»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#exterior-trim-and-omamentation) information.
59. Install the engine cover. For additional information, refer to: «Engine Cover V8 4.4L Petrol»(/land-rover/range-rover-sport/i-2005-2009/remont/exteriorinterior-trim/#interior-trim-and-omamentation) information.
60. Connect the battery ground cable. For additional information, refer to: «Specifications»(/land-rover/range-rover-sport/i-2005-2009/remont/charging-system/#battery-and-charging-system-general-information__specifications) information.

Scheme 74

Scheme 75

1. If the central junction box (CJB) is to be replaced, connect T4 to the vehicle.
2. Remove the glove compartment. For additional information, refer to: «Glove Compartment»(/land-rover/range-rover-sport/i-2005-2009/remont/gauges-instrument-panels/#instrument-panel-and-console__glove-compartment) information.
3. Remove the passenger side closing trim panel. Release the clip. Remove the 2 screws. Disconnect the electrical connector.
4. Remove the CJB. Remove the 2 nuts. Disconnect the 6 electrical connectors.

1. Install the CJB. Connect the electrical connectors. Tighten the nuts to 10 Nm (7 lb.ft).
2. Install the closing trim panel. Connect the electrical connector. Secure the clip.
3. Install the glove compartment. For additional information, refer to: «Glove Compartment»(/land-rover/range-rover-sport/i-2005-2009/remont/gauges-instrument-panels/#instrument-panel-and-console__glove-compartment) information.
4. Initiate a new CJB using T4.

See also:
• Specifications
• Standard Workshop Practices
• Engine Cover V8 S/C 4.2L Petrol
• Radiator Grille
• Air Cleaner
• Four-Wheel Drive (4WD) Control Module
• Battery Tray
• Fender Splash Shield
• Headlamp Assembly
• Windshield Wiper Motor
• Air Suspension Control Module
• Air Cleaner
• Glove Compartment
• Communications Network - Description and Operation
• Central Junction Box (CJB)