LAND ROVER FRELANDER 2 2006 Repair Manual

Publi s hed: 11-May-2011
Module Communications Network -
Torque SpecificationsDescriptionNmlb-ft
Batt ery junct ion box (BJB) ret ai ning bolt107
Batt ery pos it ive cable to bat tery juncti on box (BJB) nut107Body panel ground cable nut s107
Central junct ion box (CJB) bracket ret aining nut s107
Engine compartment ground cable nuts:M6107
M82518

Publi s hed: 11-May-2011
Module Communications Network - Communications Network
Des cript ion and Operat ion
OVERVIEW
A number of different t ypes of communicati on network are incorporated into the vehicle wiring harnes s es for t het ransmis s ion of commands and informat ion between control modul es. The confi gurati on ins tal led on a parti cul ar vehicl edepends on t he model and equi pment level .
The communicati on net works avail abl e on t he vehi cl e are:
Local Int erconnect Network (LIN) busMedium speed Controll er Area Network (CAN) busHigh speed CAN busMedia O rient ated Sys tem Trans port (MO ST) ring
BusBaud Rate
LIN bus9.6 kbit s /s
Medium s peed CAN bus125 kbi ts /sHi gh Speed CAN bus500 kbi ts /s
MOST ring24 Mbit s/s
LOCAL INTERCONNECT NETWORK BUS
The Local Int erconnect Network (LIN) bus is a low s peed broadcas t net work that employs mas ter and s lave component s .The mas ter component t rans mit s a mess age along a si ngle wi re to the s lave component s i dent ifyi ng which s lave i s t ores pond. The mes s age has a header (s lave ident ifi er) and an empt y data fi eld. The identi fi ed s lave component fi ll s thedata fiel d wi th t he relevant i nformat ion and ret urns a mes s age to the mast er component along t he s ame wire.
CONTROLLER AREA NETWORK BUS
The Control ler Area Network (CAN) bus i s a high speed broadcast net work where cont rol modules aut omat icall y t rans mitinformat ion every few micros econds . Informati on is broadcas t down a pair of t wis t ed wires, known as 'CAN high' and 'CANlow'. Informat ion i s transmit ted on t he CAN bus as a vol tage di fference bet ween t he 2 wi res .
Two CAN bus net works are used on the vehicle; medi um s peed and high s peed, wi th the Cent ral Juncti on Box (CJB) acti ngas a gat eway bet ween t he 2 networks . The t abl e below shows t he wi re colors us ed on both net works .
Netw orkHighLow
Medium SpeedGrey and orangeViol et and orange
Hi gh SpeedW hit e and bl ueW hi te
MEDIA ORIENTATED SYSTEM TRANSPORT (MOST) RING
The Media O rient ated Sys tem Trans port (MO ST) ring us es fiber opt ic cables t o t rans port data and audio s ignal s around t heinformat ion and ent ertai nment sys tem. The fiber opti c cabl es are arranged in a ri ng, wit h each uni t on t he ri ng havi ng a'MOST in' and 'MOST out ' connect ion.
The MOST ring i s a s ynchronous net work. A t imi ng mas ter s uppl ies t he clock and all ot her component s on t he ri ngs ynchronize t heir operat ion t o t hi s clock. The t iming mas t er for the MOST ri ng is the i ntegrat ed cont rol module.
W hen handli ng MOST fiber opt ic cables t he fol lowi ng precaut ions s houl d be obs erved:
Aft er dis connect ion of any cables careful ly i nst all appropri ate dus t caps to protect the mati ng faces of theconnectors from damage and contami nat ion.Avoi d i nt roducing bends of les s t han 25 mm (0.98 inches ) radi us or ki nks int o the fiber opti c cabl e duri ng s ervice orrepair. Tight bends or kinks could i mpair operat ion, caus e immediate s ys t em failure, or future s ys t em fail ure.Avoi d exces s ive force, st rai n or s tress on the fibers or connect ors es peci ally permanent st res s after rei nst all at ion.
Ring Break Diag nostics
Incorporat ed i nt o t he Auxili ary Junct ion Box (AJB) is a Ri ng Break Di agnos ti cs (RBD) l ink. The RBD li nk hous es a copper linkwhich when removed init iat es the ri ng break diagnost ics mode. The ri ng break di agnosti cs mode allows the t echni ci an tolocate an opt ical fi ber break in t he MOST ring. To i nit iate the ring break diagnos t ics mode, carry out t he fol lowi ng proces s :
Connect t he Land Rover approved di agnos ti c s yst em.Ensure t he vehi cl e is in power mode 4 or great er.Remove the RBD li nk for t he length of ti me s peci fi ed by the Land Rover approved di agnos ti c s ys t em.Replace the RBD li nk.
Aft er approxi matel y 30 s econds a Di agnos t ic Trouble Code (DTC) wi ll be logged i n the Int egrated Cont rol Modul e,identi fyi ng the l ocat ion of t he faul t. The DTC can be read and int errogat ed usi ng t he Land Rover approved di agnos ti cs ys t em.
CONTROL DIAGRAM - LIN BUS (SHEET 1 OF 2)
• NOTE: O = LIN bus

ItemPart NumberDescription
1-Driver door modul e2-Driver door s wi tch pack
3-Rear door modul e (driver s ide)
4-St art control modul e5-El ect ronic s t eering column lock
6-Rear door modul e (pas s enger s ide)
7-Pas s enger door modul e8-Rai n s ens or
9-Bat tery backed s ounder
10-Intrusi on detecti on module11-CJB

12-St eering wheel module
13-Li ght s wi tch module
14-Radio Frequency (RF) recei ver
CONTROL DIAGRAM - LIN BUS (SHEET 2 OF 2)
• NOTE: O = LIN bus
ItemPart NumberDescription
1-Headlamp level ing control modul e
2-Generat or control modul e3-Selector l ever module

4-Trans mi ss i on Cont rol Module (TCM)
5-Cabin humi dit y s ens or
6-Ai r intake s t epper mot or7-W indshi eld di st ri but ion (defrost ) s tepper motor
8-Ri ght Hand (RH) temperature blend s tepper motor
9-RH seat heat modul e10-Aut omat ic Temperature Cont rol (ATC) modul e
11-Left Hand (LH) s eat heat module
12-LH t emperat ure bl end st epper mot or13-Face/feet s tepper dis tribut ion mot or
14-RH headlamp cont rol module
15-LH headlamp cont rol module16-Engine Control Modul e (ECM)
CONTROL DIAGRAM - MEDIUM SPEED CAN BUS
• NOTE: N = Medium s peed CAN bus

ItemPart NumberDescription
1-CJB2-ATC modul e
3-Inst rument clus t er (Int ell igent Dri vers Module)
4-Trai ler module5-Driver door module
6-Fuel fi red boost er heat er
7-Pas senger door module8-Seat memory module
9-Integrat ed head unit /Integrat ed cont rol module - Low li ne audi o
10-Integrat ed cont rol module - High l ine audio11-Parki ng aid modul e

12-Di agnos ti c s ocket
CONTROL DIAGRAM - HIGH SPEED CAN BUS
• NOTE: D = Hi gh speed CAN bus
ItemPart NumberDescription
1-CJB2-Di agnos t ic s ocket
3-Res t raint s Control Module (RCM)
4-St eering wheel angle s ens or5-O ccupant clas s ificati on sens or - Nort h American Specificati on (NAS) vehicles only

6-El ect ronic rear different ial cont rol module
7-TCM
8-Headlamp leveling cont rol module9-Terrain Res ponse cont rol module
10-Ant i-lock Brake Sys tem (ABS) module
11-ECM - TD412-ECM - i6
CONTROL DIAGRAM - MOST
• NOTE: P = MOST
ItemPartNumberDescription
1-Int egrated control modul e
2-Int egrated head unit3-High Definati on (HD) radio modul e (NAS onl y from 2009MY )
4-Digit al Audi o Broadcas t (DAB) receiver / Sat ell it e Digi tal Audi o Radio Syt em (SDARS) (NAS only from2009MY ) receiver5-Bluetooth tel ephone module
6-Amplifier
7-Sat ell it e navi gat ion comput er8-Touch Screen Di spl ay (TSD)

Publi shed: 06-Jul-2011
Module Communications Network - Communications Network
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the Communi cat ions Net work, refer to t he relevant Des cript ion and O perati on sect ion i n theworks hop manual .REFER to: Communi cat ions Network (418-00 Modul e Communi cat ions Network, Des cri pti on and Operati on).
Inspection and Verification
CAUTION: Di agnos is by s ubs ti tut ion from a donor vehicle is NO T acceptabl e. Subs ti tut ion of cont rol modules doesnot guarant ee confirmat ion of a faul t, and may als o caus e addit ional fault s i n t he vehi cl e being t est ed and/or t he donorvehi cl e.
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for obvious s igns of mechani cal or electrical damage and sys tem integrit y.2.
Visual InspectionElectrical
Fuses (refer to elect rical guide)W iri ng harnes sCorrect engagement of el ect ri cal connectorsLoose or corroded connect ionsRouti ng of fi bre opt ic harnes sesCorrect engagement of opt ical connect orsCorrect pl acement of opti cal connectors (ring order)Correct as s embly of opti cal connect ors (backout , etc)Damage t o fibre (chafi ng, abras ion, kinking, cut s , etc)
3. If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) beforeproceeding t o t he next s t ep3.
4. If t he caus e is not vis ually evi dent , check for Di agnos ti c Trouble Codes (DTCs) and refer t o t he DTC Index.4.
For a compl ete lis t of all di agnos ti c troubl e codes that coul d be l ogged on t his vehicle, pleas e refer to s ect ion 100-00.REFER to: Di agnos ti c Trouble Code (DTC) Index - DTC: Body Cont rol Module (BCM) (100-00 General Informat ion,Des cript ion and Operat ion).

Publi s hed: 11-May-2011
Module Communications Network - Central Junction Box (CJB)
Removal and Inst all ati on
Removal
If renewing t he CJB, us e Land Rover approved di agnos ti c equi pmentt o int errogat e t he module and upload t he s t ored data, pri or toremoval of the CJB.
1.
Di sconnect t he bat t ery ground cable.
Refer t o: Specificati ons (414-00 Bat tery and Charging Sys tem -General Informat ion, Specificati ons).
2.
Remove t he glove compartment .
Refer t o: Glove Compart ment (501-12 Ins trument Panel andConsol e, Removal and Ins t al lat ion).
3.
4.
5.