2006 LAND ROVER FRELANDER 2 Repair Manual

automatic transmission deactivate airbag check transmission fluid wiper blades suspension oil filter

Page 1961 of 3229

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 (B

Page 1962 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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

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

Page 1963 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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

Page 1964 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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 c

Page 1965 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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 te

Page 1966 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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-Se

Page 1967 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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 eerin

Page 1968 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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

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