2006 LAND ROVER FRELANDER 2 Repair Manual

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Page 497 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 6. CAUTION: Make s ure that all openi ngs are
s ealed.
6. 7. CAUTION: The s eals are to be reus ed unles s
damaged.
T orque: 9 Nm 7.
8.
NOTE: Do not dis ass embl e further if t he component
i s

Page 498 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual Publi s hed: 11-May-2011
Anti-Lock Control -
General SpecificationItemSpecification
Syst em make / typeConti nent al Teves - MK23E1
Wheel speed sensors:MakeConti nent al Teves
Yaw rate sensor:
Make /

Page 499 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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 a

Page 500 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 1
2
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

1
2
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

Page 501 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 1W i th firm pres sure s ti ll held on the brake pedal, s t art t he engi ne.
Did t he pedal t ravel increas e as t he engi ne s tarted?YesThe vacuum funct ion of t he brake boost er is operat in

Page 502 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 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

Page 503 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 7.
8.
9.
Left-hand drive vehicles
10. CAUTIONS:
Be prepared t o collect es caping flui ds .
Make s ure that all openings are sealed.
10.
Right-hand drive vehicles

Page 504 of 3229

LAND ROVER FRELANDER 2 2006 Repair Manual 11.
CAUTIONS: Be prepared t o collect es caping flui ds .
Make s ure that all openings are sealed.
11.
All vehicles 12.
CAUTIONS: Be prepared t o collect es caping flui ds .
Make s ure that a

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