LAND ROVER FRELANDER 2 2006 Repair Manual

12-BJB
PRINCIPLES OF OPERATION
The wiper and was her s ys tem can operate i n a number of different ways when t he vehi cle i s in power mode 4 through 8.Reques t s from t he RH st eering col umn mult i-functi on s wit ch are trans mi tt ed over t he LIN bus t o the CJB, which i s t he maincont rol ler for t he s ys t em.
Windshield Wiper Slow Wipe
On recei vi ng a reques t for s low winds hield wiper operati on the CJB will energi ze relay 11 in t he BJB. W hen energized, relay11 provides a feed t o t he s wit ch cont act s of rel ay 8, whi ch is al so located i n t he CJB. Relay 8 is t he fast /s l ow wi pe relay.W hen s l ow wipe has been reques t ed relay 8 remai ns de-energized, allowi ng a feed to fl ow acros s the relay s wi tch contactst o the winds hi eld wi per motor s low speed brus h contacts .
Windshield Wiper Fast Wipe
On recei vi ng a reques t for fast windshi el d wi per operat ion t he CJB wi ll energize relay 11 and relay 8 i n t he BJB. W henenergized, relay 11 provides a feed to the s wi tch contacts of relay 8. The energized rel ay 8 provi des a feed t o t hewinds hield wiper mot or fast speed brus h contacts .
Windshield Wiper Intermittent Wipe
On recei vi ng a reques t for i ntermit tent wi nds hield wiper operati on, t he CJB wi ll energize relay 11 i n t he BJB to operat e t hewipers at s low s peed. Software cont ained wi thin the CJB i nterprets the t ime delay reques ted and controls operat ion ofrel ay 11 accordi ngl y.
The int ermi tt ent wiper s et t ing broadcast on the LIN bus t o t he CJB equat es to the followi ng t ime del ays .
LIN Bus SignalT ime Delay (seconds)
122
215.539.5
46
53.561
In the event of a LIN bus fai lure bet ween t he CJB and the RH s teeri ng col umn mul ti -funct ion s wi tch, the CJB wi ll default to'Limp Home' mode (see bel ow).
Windshield Wiper Automatic Wipe
On recei vi ng a reques t for aut omat ic winds hi eld wi per operat ion, t he CJB int erpret s LIN bus mess ages received from therai n s ens or. The rain sens or provides LIN bus mess ages wit h values rangi ng from 0 to 7. A s ignal val ue of 0 is interpretedby t he CJB as there being no wat er on the windshi eld.
A s i gnal value from 1 t o 5 i s int erpret ed by t he CJB as there being a smal l amount of wat er hi tt ing the wi nds hiel d. In t hisins t ance, the CJB i nit iates a s low wipe rout ine as det ailed in t he 'W inds hield W iper Slow W i pe' s ect ion above.
A s i gnal value from 6 t o 7 i s int erpret ed by t he CJB as there being a large amount of water hi tt ing t he wi nds hield. In t hisins t ance, the CJB i nit iates a fas t wi pe routi ne as detai led i n t he 'W i ndshi el d W iper Fas t W i pe' s ecti on above.
Rain s ens or s ens it ivit y can be adjus ted by turni ng t he rot ary control on the RH st eeri ng col umn mul ti -funct ion s wit ch t ot he required pos i ti on. Si x different s ensi ti vi ty set ti ngs are avail abl e, which are broadcas t over t he LIN bus to the CJB.
• NOTE: The CJB wil l onl y change a fas t wipe routi ne t o a s low wipe routi ne if t he rai n s ens or value i s lower t han 4.
Windshield Wiper Flick Wipe
On recei vi ng a reques t for fli ck wipe operat ion t he CJB wil l operate t he wi nds hiel d wipers as described in the 'Slow W ipe's ect ion above unti l the reques t is removed.
Windshield Wiper Park
The winds hield wiper park s wi tch i s int egral wit h t he winds hi eld wiper motor. The park s wit ch ensures the windshi el dwipers ret urn t o t he park pos it ion if t he winds hi eld wiper reques t i s cancell ed mid-s troke.
The CJB is connect ed t o one s ide of t he park s wit ch. The park s wit ch cont act s are open when the wi pers are in any pos it ionexcept t he park pos it ion. W hil e t he s wit ch cont act s are open, the CJB conti nues to energi ze rel ays 11 and 8 in the BJB,even if a LIN bus s ignal has been recei ved from t he RH s t eering column mult i-functi on s wit ch request ed t he wipers ares topped.
W hen t he wi pers reach t he park pos it ion, the park s wit ch cont act s clos e and a ground pat h i s created. W hen t he CJBregi st ers t his ground pat h i ts software logic det ermi nes the wipers are i n the park posi ti on and de-energi zes relays 11 and8 i n t he BJB.
Windshield Wiper Limp Home Mode
In the event of a LIN bus fai lure bet ween t he CJB and the RH s teeri ng col umn mul ti -funct ion s wi tch when t he wi nds hieldwipers are act ive, the CJB wi ll enter l imp home mode. In limp home mode, t he CJB will onl y power t he wi nds hiel d wipersat s low s peed.
Windshield Wiper Service Position
The winds hield wipers can be parked on the winds hi eld t o ai d the fi tment of new wi per bl ades . For more i nformati on, refer

t o the 'Owners Handbook'.
Rear Screen Wiper
On recei vi ng a reques t for rear s creen wi per operat ion the CJB wi ll energize relay RA2 i n t he AJB. W hen energized, relayRA2 provides a feed t o t he rear s creen wiper mot or. The rear s creen wi per operat es int ermi tt entl y, wi th a delay betweenwipes of approximat ely 6 seconds . The CJB cont rol s operati on of rel ay RA2, and consequentl y rear s creen wiper mot oroperati on, accordingly.
The CJB als o provi des a feed t o t he rear s creen wi per mot or park s wit ch. The park s wit ch is i ntegral wi th the rear s creenwiper mot or and ens ures t he wi per returns to the park pos i ti on if t he rear wi per reques t is cancel led mid-st roke. The parks wit ch cont act s are cl osed when the rear wiper is i n any posi ti on except t he park pos it ion. Thi s all ows the CJB to returnt he rear wiper t o t he park pos it ion when relay RA2 i s de-energized.
The CJB wil l als o power the rear screen wiper motor i f revers e gear is s elected whi le the wi nds hiel d wi per funct ion i sact ive. On vehicles fit t ed wit h an aut omat ic trans mi s si on, t he reverse gear s ignal origi nat es in the Transmis si on ControlModule (TCM). The TCM broadcas ts a revers e gear s ignal over the hi gh s peed CAN bus to the CJB, which responds byoperati ng t he rear wiper.
On vehicles fit ted wit h a manual transmis s ion, the revers e gear s i gnal ori ginates at t he revers e gear s wit ch. The reversegear s wi tch i s hardwired t o t he CJB.
Windshield Washers
On recei vi ng a reques t for wi nds hiel d was her operat ion t he CJB wi ll energize t he front washer cont rol relay. Thi s all ows abatt ery volt age feed t o flow to the was her pump. A ground path for t he pump is provided by t he de-energized rear was hercont rol rel ay. Bot h was her control relays are int egral wit h t he CJB.
W hen wi ndshi el d was her operat ion i s reques ted, t he winds hi eld was hers will operat e. The CJB will delay wiper operati onfor 100 ms aft er the was her swi tch i s pres s ed. If t he s wit ch is pres s ed for l ess than 100 ms, t he CJB wil l not operat e t hewipers.
The CJB wil l power t he wi nds hield wipers for as l ong as washer operati on is reques t ed, al though t he washers wil l ti me outaft er 10 s econds. After t he was her s wi tch has been rel eas ed, the CJB wi ll operat e t he winds hi eld wipers t hrough 2 morewipe cycles .
Rear Screen Washer
On recei vi ng a reques t for rear s creen was her operati on the CJB wi ll energize the rear was her cont rol rel ay. This al lows abatt ery volt age feed t o flow to the was her pump. A ground path for t he pump is provided by t he de-energized front was hercont rol rel ay. Revers ing the polarit y of the pump (s ee 'W i nds hield W as hers ' above) allows was her fl uid t o be di rected t ot he rear s creen washer jet rather t han the windshi el d was her jets . The rear s creen was her jet is incorporat ed int o the hi ghmounted s t op lamp.
The rear s creen was her wi ll operat e for up t o 10 seconds if cont inuousl y reques ted. W hen rear s creen was her operati on isreques ted, the rear screen wiper wil l operat e conti nuous ly unt il t he s wit ch is released. After t he swit ch has been released,or fol lowing 10 seconds of conti nuous operat ion, the CJB will operat e t he rear s creen wiper t hrough 2 or 3 more wi pecycles .
Headlamp Washers
W hen t he vehicle ent ers i gni ti on mode 4 (acces s ory) to 7 (engine running) the firs t winds hield was h reques t great er than100 ms will operat e a headlamp power was h s equence. The CJB will t hen s tart a 10 mi nut e t imer. If 5 request s forwinds hield washer operati on are made wit hin this 10 mi nut e wi ndow, t he CJB wil l power t he headl amp was hers uponreceiving the fifth reques t . W hen t his occurs , the 10 minute ti mer is res et t o 0.
If the CJB receives no windshi el d was her reques t s duri ng a 10 mi nute window, the headlamp was hers will operat e on t hefi rs t reques t received aft er the 10 minut e window has el aps ed. Agai n, once t he headlamp was hers have been operati onal ,t he CJB res ets t he t imer t o 0.
The headl amp was hers wi ll only operat e when t he headl amps are on. The CJB receives a 'li ght s on' si gnal from the lightcont rol module over t he LIN bus .
W hen headlamp was her operati on is required, t he CJB energizes rel ay 9 in the BJB, all owing a bat tery vol tage feed t opower the headlamp was her pump. A ground path for t he washer pump i s provided by t he de-energi zed relay 12, which i sals o l ocat ed in the BJB. Thi s s equence of event s provides was her flui d t o the headlamp 1 was her jets .
Aft er thi s s equence the power s uppl y t o t he pump is revers ed. The CJB does t his by de-energi zing rel ay 9 and energi zi ngrel ay 12. Thi s allows the pump to provi de was her flui d to the headlamp 2 was her jets. The s equence of event s runs asfol lows :
Power to headlamp 1 was her - 500 msDelay t o power headl amp 2 was her - 100 msPower to headlamp 2 was her - 500 msDelay (s oak ti me) to power 1 headlamp washer - 700 msPower to 1 headl amp was her - 500 msDelay t o power 2 headl amp was her - 100 msPower to 2 headl amp was her - 500 ms
If there is l ess than 1 l it er (0.26 US gall on) of was her flui d in the was her fl uid reservoi r, t he CJB wil l s us pend headl ampwas her operat ion. The fl uid l evel s wit ch is hardwired to the CJB, which als o t rans mits a low fl ui d s ignal to the i nst rumentclus ter over t he medi um s peed CAN bus. For addit ional i nformati on, refer to:
Ins trument Clus ter (413-01 Ins t rument Clus t er, Descripti on and Operat ion),Informat ion and Mes s age Cent er (413-08 Informati on and Mes sage Cent er, Descripti on and Operat ion).

Publi s hed: 11-May-2011
Wipers and Washers - Wipers and Washers
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the wiper and washer s yst ems , refer t o t he rel evant De s cript ion and Operat ion secti on in the
works hop manual .
REFER to: W ipers and W ashers (501-16 W i pers and W as hers , Descripti on and Operat ion).
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 does
not guarant ee confirmat ion of a faul t, and may als o caus e addit ional fault s i n t he v ehi cl e being t est ed and/or t he donor
vehi 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.
2.
Visual Inspection Mechanical Electrical
W iper bl ades W iper pi vot arm shaft
W as her res ervoir
Hos e(s )
W as her jet (s ) Fus es /rel ays (refer t o electrical gui de)
W iring harnes s
Correct engagement of electrical connect ors
Loos e or corroded connect ions
3.
If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) before
proceeding t o t he next s t ep.
3.
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.
DTC Index
• NOTE: If the control modul e or a component i s s us pect and the vehicle remains unde r manufacturer warrant y, refer t o the
W arranty Pol icy and Procedures manual (s ect ion B1.2), or determine i f any pri or appr oval programme is in operat ion, pri or
t o the ins tall ati on of a new module/component.
• NOTE: Generic scan t ool s may not read the codes li st ed, or may read only fi ve digi t codes . Mat ch the five di git s from t he
s can tool to the firs t fi ve di git s of the seven digi t code l is ted to ident ify t he fa ul t (t he las t t wo digi ts gi ve ext ra
informat ion read by the manufact urer-approved diagnost ic s ys tem).
• NOTE: W hen performing volt age or res is t ance t est s , always use a digi tal mult imeter (DMM) accurat e t o t hree deci mal
places and wit h a current cal ibrat ion cert ificate. W hen tes ti ng res i st ance, always t ake the res is tance of the DMM l eads i nto
account.
• NOTE: Check and recti fy bas ic faul ts before beginni ng diagnos t ic rout ines i nvol vi n g pinpoint t es t s.
• NOTE: If DTCs are recorded and, aft er performi ng the pi npoi nt tes ts , a fault is no t present , an int ermi tt ent concern may
be t he caus e. Always check for loose connect ions and corroded terminals .
DT C Description Possible Cause Action
B109512 W iper On/O ff Relay - circui t
s hort t o power W i per On/Off relay ci rcuit -
s hort t o power Refer to el ect ri cal circui t diagrams and
check wiper On/O ff rel ay circuit for s hort to
power
B109514 W iper On/O ff Relay - circui t
s hort t o ground or open W i per On/Off relay ci rcuit -
s hort t o ground, open ci rcuit Refer to el ect ri cal circui t diagrams and
check wiper On/O ff rel ay circuit for s hort to
ground, open circui t
B109612 W iper High/Low Relay - circui t
s hort t o power W i per High/Low relay circui t -
s hort t o power Refer to el ect ri cal circui t diagrams and
check wiper High/Low rel ay ci rcuit for short
to power
B109614 W iper High/Low Relay - circui t
s hort t o ground or open W i per High/Low relay circui t -
s hort t o ground, open ci rcuit Refer to el ect ri cal circui t diagrams and
check wiper High/Low rel ay ci rcuit for short
to ground, open circuit
B10AD04 Rai n Sens or - Syst em Int ernal
Fail ure Int ernal s ens or fai lure Ins tal l a new rai n s ensor.
REFER t o: Rain Sens or (501-16 W ipers and
W as hers, Removal and Ins t al lat ion).
B10AD09 Rai n Sens or - Component
Fail ures Rain sens or incorrectl y
ins t al led Rain sens or internal failure Check for correct i nst all ati on of rain
sens or. Ins t all a new sens or as required.
REFER t o: Rain Sens or (501-16 W ipers and
W as hers, Removal and Ins t al lat ion).
B113188 W iper Motor Module - Bus off Lost communi cat ions wit h
wi per mot or modul e Carry out di agnos ti c s trat egy as sociat ed
wit h t hi s DTC us ing manufact urer approved
di agnos ti c s yst em
B1C8212 Headlamp W as her Rel ay Coi l
Ci rcuit - circui t s hort t o power Headlamp was her relay control
circui t - short to power Refer to el ect ri cal circui t diagrams and
check headl amp was her relay cont rol circui t
for s hort to power

DT C
Description Possible Cause Action
B1C8214 Headlamp W as her Rel ay Coi l
Ci rcuit - circui t s hort t o ground
or open Headlamp was her relay control
circui t - short to ground, open
circui t Refer to el ect ri cal circui t diagrams and
check headl amp was her relay cont rol circui t
for s hort to ground, open circui t
C200412 Headlamp washer rel ay B -
ci rcuit s hort t o power Headlamp was her relay B
circui t - short to power Refer to el ect ri cal circui t diagrams and
check headl amp was her relay B ci rcuit for
short to power
C200414 Headlamp washer rel ay B -
ci rcuit s hort t o ground or open Headlamp was her relay B
circui t - short to ground, open
circui t Refer to el ect ri cal circui t diagrams and
check headl amp was her relay B ci rcuit for
short to ground, open circuit
U023100 Los t Communicati on W i th Rai n
Sens ing Module Lost communi cat ion wi th rain
s ens i ng module Carry out t he as sociat ed network tes t for
this DTC usi ng t he manufacturer approved
di agnos ti c s yst em

Publi s hed: 11-May-2011
Wipers and Washers - Windshield Wiper Motor
Removal and Inst all ati on
Removal
• NOTE: Removal s t eps in t his procedure may cont ain i nst all ati on det ail s.
Remove t he plenum chamber panel.
Refer t o: Plenum Chamber (412-01 Cl imat e Control, Removal and
Inst all at ion).
1. Remove t he winds hield wiper motor.
T orque: 10 Nm 2.
Installation To i nst all , revers e t he removal procedure.
1.

Publi s hed: 11-May-2011
Wipers and Washers - Rear Window Wiper Motor
Removal and Inst all ati on
Removal
• NOTE: Removal s t eps in t his procedure may cont ain i nst all ati on det ail s.
Remove t he rear window wiper pivot arm.
1.
Remove t he li ft gat e t ri m panel.
Refer t o: Li ft gate Trim Panel (501-05 Interi or Trim and
Ornament ati on, Removal and Ins tal lat ion).
2. Remove t he rear window wiper motor.
T orque: 10 Nm 3.
4.
NOTE: Do not dis ass embl e further if t he component
i s removed for acces s onl y.
4.
Installation To i nst all , revers e t he removal procedure.
1.

Publi s hed: 11-May-2011
Wipers and Washers - Rain Sensor
Removal and Inst all ati on
Removal
Remove t he int erior mi rror.
Refer t o: Int erior Rear View Mirror (501-09 Rear Vi ew Mi rrors ,Removal and Ins tall ati on).
1.
2.
Installation
To i nst all , revers e t he removal procedure.1.

Publi s hed: 11-May-2011
Wipers and Washers - Headlamp Washer Jet
Removal and Inst all ati on
Removal
1. W ARNING: Do not work on or under a vehi cle s upported onl y
by a jack. Al ways support t he vehi cl e on s afet y s tands .
Rais e and s upport t he vehi cl e.
1.
Remove t he front wheel s and ti res .
Refer t o: W heel and Ti re (204-04 W heel s and Tires, Removal and
Inst all at ion).
2.
Remove t he front bumper cover.
Refer t o: Front Bumper Cover (501-19 Bumpers, Removal and
Inst all at ion).
3. 4.
Installation To i nst all , revers e t he removal procedure.
1.

Publi s hed: 11-May-2011
Wipers and Washers - Wiper Pivot Arm
Removal and Inst all ati on
Removal 1.
2.
NOTE: Do not dis ass embl e further if t he component
i s removed for acces s onl y.
2.
Installation T orque:
25 Nm 1.

Publi s hed: 11-May-2011
Wipers and Washers - Windshield Washer Pump
Removal and Inst all ati on
Removal
1. W ARNING: Do not work on or under a vehi cle s upported onl yby a jack. Al ways support t he vehi cl e on s afet y s tands .
Rais e and s upport t he vehi cl e.
1.
Remove t he RH fender s plas h s hield.
Refer t o: Fender Spl ash Shi eld (501-02 Front End Body Panel s ,Removal and Ins tall ati on).
2.
Drai n t he was her reservoi r fl ui d.3.
4. NOTE: Do not dis ass embl e further if t he componenti s removed for acces s onl y.
Remove t he winds hield was her pump.
4.
Installation
To i nst all , revers e t he removal procedure.1.