windshield wipers LAND ROVER FRELANDER 2 2006 Repair Manual

11-Int egrated audio modul e
12-Int egrated control modul e
PRINCIPLES OF OPERATION
Windshield Wiper Switch
ItemPart NumberDescription
1-Intermit tent wi pe/rai n s ens or
2-Low s peed wipe3-Hi gh s peed wi pe
4-Singl e wipe - pul l down and releas e
5-Intermit tent wi pe del ay or rai n s ens or s ens it ivi ty6-Intermit tent operat ion of t he rear wiper
7-Operat es t he rear was her and wi per
The winds hield wiper functi ons are operat ed by moving t he s wit ch up or down. Fl ick wi pe is s elected by pus hing the s wi tchdown. The swi tch i s non-l at chi ng in thi s posi ti on and wiper operati on is st opped when the swi tch i s rel eas ed and i t ret urnst o the off posi ti on. The fli ck wipe s wi tch contact is connect ed on a s ingl e wire t o t he Cent ral junct ion box (CJB) andground. Thi s is the s ame connect ion t o t he CJB as t he fas t s peed wipe. W hen t he s witch is operat ed t he ci rcuit i scompleted bet ween the CJB and ground. The CJB detects the complet ed circui t and operat es t he wipers for as l ong as thes wit ch cont act i s made.
Int ermit tent is sel ect ed by pushi ng the wiper swi tch up, t o t he det ent pos i ti on; t he wi pers operate at the del ay periods elect ed on t he rot ary swi tch on the wi per st alk. The wipers remai n in the i ntermit tent mode unt il t he wiper s wit ch ismoved t o the off or s low/fas t speed pos it ions. The i ntermit tent s wit ch cont act is connected bet ween t he CJB and ground.W hen t he s wit ch is moved to the i ntermit tent posi ti on t he ci rcuit i s completed. The CJB detects the complet ed circuit andoperates t he wi pers i n the intermit t ent delay sel ect ed for as l ong as the s wi tch contact is made.
The int ermi tt ent del ay period is s elected us i ng a rot ary control on the wiper s wit ch st alk. The rot ary control al lows t hedri ver t o s elect s ix delay periods to s ui t the prevai li ng weather condit ions . The rot ary control i s connected on three wirest o the CJB and a s ingle wire to ground. The s i x pos i ti ons each us e a di fferent combinat ion of t he t hree wi res . The CJBdetects , via the t hree wi res , which s electi on has been made and operates t he wi pers wi th the appropri ate del ay.
Slow speed operat ion i s s el ect ed by pus hi ng t he wiper s wit ch up, t o t he s econd det ent pos it ion. The wipers operate ats low speed unti l the wiper swi tch i s moved t o t he off, intermit t ent or fast s peed posi ti ons . The s low s peed s wi tch contactis connect ed between t he CJB and ground. W hen t he s wit ch is moved t o t he s low speed pos it ion t he circuit is complet ed.The CJB detects t he complet ed ci rcuit and operat es the wipers at s l ow s peed for as long as the s wi tch cont act is made.
Fast s peed operati on is sel ect ed by pushi ng the wiper swit ch up, t o t he thi rd det ent pos it ion. The wi pers operate at fas ts peed unt il t he wiper s wit ch is moved to t he off, int ermi tt ent or sl ow s peed pos i ti ons . The fas t s peed s wit ch cont act i sconnected bet ween the CJB and ground. W hen t he s wit ch is moved to the fast speed posit ion t he circuit i s complet ed. TheCJB detects t he complet ed ci rcuit and operat es the wipers at fas t speed for as long as t he s wit ch cont act i s made.
The winds hield washer functi on butt on is locat ed on t he end of t he swit ch st alk. W hen t he butt on is pres sed a circuit i scompleted bet ween the CJB and ground. The CJB detects the complet ed circui t and operat es t he winds hield washer for aslong as t he butt on i s depress ed.
Rear W as h/W i pe Swit ch
The rear was h/wi pe functi ons are operat ed by moving t he s wit ch rearwards . Rear wi pe is sel ect ed by moving t he wi pers wit ch rearwards t o the fi rs t detent posi ti on. The rear wiper swit ch is connected bet ween t he CJB and ground. W hen thes wit ch is moved t o t he rear wi per pos it ion t he circui t is complet ed. The CJB det ect s t he compl eted circui t and operates t herear wi per for as long as t he s wit ch cont act i s made.
The rear was her i s s elected by movi ng the wiper s wit ch rearwards to the s econd, non-l atching pos it ion. W hen t he s wit ch ismoved t o thi s posi ti on a circui t is compl et ed between t he CJB and ground. The CJB det ect s t he completed ci rcuit andoperates t he rear was her for as l ong as the s wi tch contact is made.
For addit ional informat ion, refer t o: W i pers and W as hers (501-16 W ipers and W as hers , Des cri pti on and Operati on).
Turn Signal Indicator and Headlamp Switch
The t urn s ignal indicator s wit ch as sembl y is locat ed i n the left hand s ide of t he case and is retai ned in t he case wit h t wos crews . The swi tch i s connected t o t he mai n harnes s via a connect or on the back of the s wit ch. The s wit ch cont rol s thefol lowing funct ions :
Left / right turn s ignal operati onHigh / low beam operati onHeadl amp flas hComputer functi on s electi on (i f fi tt ed).

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 - 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 - 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.

Publi s hed: 11-May-2011
Wipers and Washers - Windshield Washer Reservoir
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.
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 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. Remove t he winds hield was her res ervoir.
T orque: 6 Nm 4.
5.
NOTE: Do not dis ass embl e further if t he component
i s removed for acces s onl y.
Remove t he winds hield was her pump.
5.