2006 LAND ROVER FRELANDER 2 lock

Publi s hed: 11-May-2011
Anti-Lock Control - Anti-Lock Control
Des cript ion and Operat ion
OVERVIEW
The anti -l ock control secti on is incorporated wit hin t he anti -l ock control - st abil it y ass i st s ecti on of the workshop manual.For addit ional informat ion, refer t o: Anti -Lock Cont rol - St abi li ty As s is t (206-09C Anti -Lock Cont rol - St abi lit y As s is t,Des cript ion and Operat ion).

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Publi s hed: 11-May-2011
Anti-Lock Control - Anti-Lock Control
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the Ant i-lock Braking Sys t em (ABS), refer to the relevant Des cri pt ion and Operati on s ect ion i nt he works hop manual . REFER t o: Anti -Lock Cont rol - St abi li ty As s is t (206-09C Anti -Lock Cont rol - St abi lit y As s is t,Des cript ion 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 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.
• NOTE: Pri or to any t es ti ng or ins pect ion, the vehicle should be check for any relevant warning l amps bei ng il lumi nat ed. Ifa warning l amp is ill uminat ed, check for DTCs and refer to t he relevant DTC Index, if no warni ng lamp is i ll uminated,cont inue wi th diagnos t ic procedures below.
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for obvious s igns of damage and s ys t em i ntegri ty.
Visual InspectionMechanicalElectrical
Brake flui d levelVacuum s ys t emW heel s peed sens or ins tall ati onW heel s peed sens or ai r gapSt eering wheel rot ati on sens orAccel erometer/s ens or clus t er i nst all ati onIncorrect wheel or t ire s ize
W arning light operat ionFus esW heel s peed s ens orsConnect ors /Pi nsHarnes s esSt eering wheel rot ati on s ens orAccel eromet er/sens or cl ust erHydraul ic Control Uni t (HCU)
2.
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 t he ant i-lock braking sys tem and s teering rot ati on s ens or modules forDi agnos ti c Trouble Codes (DTCs) and refer t o t he rel evant DTC Index.4.
DTC Index
• NOTE: If the control modul e or a component i s s us pect and the vehicle remains under manufacturer warrant y, refer t o theW arranty Pol icy and Procedures manual (s ect ion B1.2), or determine i f any pri or approval programme is in operat ion, pri ort 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 digit codes . Mat ch the five di git s from t hes 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 faul t (t he las t t wo digi ts gi ve addi ti onalinformat ion read by the manufact urer approved diagnos t 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 malplaces, and wi th an up-t o-date cal ibrat ion cert ificate. W hen tes ti ng res is t ance al ways take t he res is t ance of t he DMMleads i nt o account .
• NOTE: Check and recti fy bas ic faul ts before beginni ng diagnos t ic rout ines i nvol vi ng pinpoint t es t s.
• NOTE: Ins pect connect ors for s igns of water ingres s , and pins for damage and/or corros ion.
• NOTE: If DTCs are recorded and, aft er performi ng the pi npoi nt tes ts , a fault is not present , an int ermi tt ent concern maybe t he caus e. Always check for loose connect ions and corroded terminals .
For a compl ete lis t of all Di agnos ti c Trouble Codes (DTCs) t hat could be logged on this vehicle, pleas e refer to Sect ion100-00.REFER t o: Di agnos t ic Trouble Code (DTC) Index - DTC: Ant i-Lock Braki ng Sys t em (ABS) (100-00 GeneralInformat ion, Des cript ion and Operat ion).
Pinpoint Tests
PINPOINT TEST A : BRAKE VACUU M ASSIST FU NCTION
T ESTCONDIT IONSDET AILS/RESULT S/ACT IO NS
A1: CHECK T HE BRAKE PEDAL T R AVEL WIT H T HE ENGINE OFF
Set i gnit ion s wit ch t o OFF.
Pump t he brake pedal s ix ti mes and hold firm press ure on t he pedal .
Did t he pedal t ravel decreas e and t he pedal go hard as i t was pumped?YesGO t o A2.NoCHECK the vacuum circui t to the brake boos t er. Start the engine and idle for three mi nut es, s wi tchignit ion OFF t hen repeat t he tes t. If t he pedal t ravel does not decreas e, s uspect the brake boos t er.
A2: CHECK T HE BRAKE PEDAL T R AVEL WIT H T HE ENGINE RUNNING

Publi s hed: 11-May-2011
Anti-Lock Control - Anti-Lock Brake System (ABS) Module
Removal and Inst all ati on
Removal
• CAUTIO NS:
Extreme cleanli nes s mus t be exercis ed when handli ng thes e component s.
If brake fluid is s pil t on the pai ntwork, t he affect ed area must be immedi ately washed down wi th col d wat er.
All vehicles
1. W ARNING: Make sure t o s upport the vehicle wit h axles tands .
Rais e and s upport t he vehi cl e.
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 bat t ery t ray.
Refer t o: Bat t ery Tray (414-01 Bat tery, Mount ing and Cables ,Removal and Ins tall ati on).
3.
Right-hand drive vehicles
Remove t he plenum chamber panel.4.
Left-hand drive vehicles
Remove t he winds hield wiper motor and l inkage.
Refer t o: W i nds hield W i per Mot or (501-16 W ipers and W as hers ,Removal and Ins tall ati on).
5.
6. CAUTION: Make s ure that all openi ngs ares ealed.6.
All vehicles

Publi s hed: 11-May-2011
Anti-Lock Control - Front Wheel Speed Sensor
Removal and Inst all ati on
Removal
Rais e and s upport t he vehi cl e.
1.
Remove t he front wheel and t ire.
Refer t o: W heel and Ti re (204-04 W heel s and Tires, Removal and
Inst all at ion).
2.
Releas e t he fender spl as h shi el d.
Refer t o: Fender Spl ash Shi eld (501-02 Front End Body Panel s ,
Removal and Ins tall ati on).
3. 4.
T orque:
5 Nm 5.
Installation To i nst all , revers e t he removal procedure.
1.
If a new component i s t o be ins t al led, configure usi ng IDS.
2.

Publi s hed: 11-May-2011
Anti-Lock Control - Rear Wheel Speed Sensor
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: Make sure t o s upport the vehicle wit h axles tands .
Rais e and s upport t he vehi cl e.
1.
Remove t he rear wheel and t ire.
Refer t o: W heel and Ti re (204-04 W heel s and Tires, Removal andInst all at ion).
2.
3.
4.

Publi s hed: 11-May-2011
Anti-Lock Control - Traction Control - Anti-Lock Control - Traction Control
Des cript ion and Operat ion
OVERVIEW
The anti -l ock control - tract ion control secti on is incorporated wit hin t he anti -l oc k control - st abil it y ass i st s ecti on of the
works hop manual .
For addit ional informat ion, refer t o: Anti -Lock Cont rol - St abi li ty As s is t (206-09C Anti -Lock Cont rol - St abi lit y As s is t,
Des cript ion and Operat ion).

Publi s hed: 11-May-2011
Anti-Lock Control - Stability Assist - Anti-Lock Control - Stability Assist
Des cript ion and Operat ion
COMPONENT LOCATION
• NOTE: Left -Hand Drive (LHD) shown; Right -Hand Drive (RHD) s imi lar.
ItemPart NumberDescription1-Hil l Descent Cont rol (HDC) and Dynami c Stabi lit y Control (DSC) s wit ches (wi th Terrain Res ponse™ )
2-HDC and DSC swit ches (wit hout Terrain Res ponse™ )

For addit ional informat ion, refer t o:
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).
STEERING WHEEL MODULE
ItemPart NumberDescription
1-St eering wheel module2-Cl ocks pring and s t eering angle s ens or
The s teeri ng wheel modul e cont ains t he s teering angle s ens or, clocks pri ng and s teering col umn mul ti functi on s wit ches t oform an int egral component . The s teeri ng angle s ensor i s connected di rectl y to the cl ocks pring.
The s teeri ng wheel modul e is mount ed t o t he upper s t eering column wit h 2 s crews , and receives an elect rical s uppl y fromt he main harnes s vi a a 4-pi n connector l ocat ed on t he si de of the uni t. The module provides t he locati on and elect ricalconnecti on for t he 2 mul ti functi on swit ches .
Input s ignals from t he s teeri ng angl e s ensor are received and process ed by t he s teering wheel modul e t o calculate thes teeri ng wheel angle, and s t eering wheel angl e s peed. The i nformat ion is t rans mit t ed on the hi gh s peed CAN bus for us eby t he ABS module.
Steering Angle Sensor
The s teeri ng angle s ensor i s connected t o t he s teering wheel wit h 2 dowels . The s teering angle s ens or moni tors s teeri ngwheel rotat ion, and provides i nformat ion of t he s teering wheel angl e and rat e of s peed of s t eering wheel movements .
A code wheel and 16 opt ical digit al sens ors are ins t al led i nsi de t he s teeri ng wheel angle sens or. Rotat ion of t he code