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If a fault occurs i n t he Terrai n Res pons e rot ary cont rol, al l rotary cont rol i con amber Light Emi tt ing Di odes (LED's ) wil l bet urned off and rotat ion of t he rot ary control i s ignored. The i ns t rument clus ter mess age cent er will di spl ay a mes s age'SY STEM FAULT SPECIAL PROGRAMS NOT AVAILABLE' when t he fault occurs , if t he fault i s pres ent and the driver att emptst o s el ect a s pecial program (if t he cont rol module is able to do thi s) or at t he next i gni ti on mode 2 (on) cycle.
The Terrai n Res pons e rotary cont rol and t he cont rol module are an i nt egral unit . If a fault occurs in eit her component , thewhole uni t wil l requi re replacement. ENSURE T HAT T HE FAULT IS WIT H T HE T ERRAIN RESPONSE CO NT ROL MO DULEAND NOT IN A SUB-SYST EM MODULE BEFO RE REPLACING T HE MODULE.
If a CAN faul t exi s ts and prevent s Terrai n Res pons e s yst em operat ion, all of t he Terrai n Res pons e rotary cont rol icon LED'swil l be il lumi nat ed and rot ati on of the rot ary cont rol i s ignored.
If the i nst rument clus ter does not receive a Terrain Res ponse s ys t em CAN mess age from the Terrain Res ponse cont rolmodule, t he mes sage 'SY STEM FAULT SPECIAL PROGRAMS NO T AVAILABLE' wi ll be dis played when t he faul t occurs and willbe repeat ed at every ignit ion mode 2 (on) cycl e.
User Error
The fol lowing incorrect us age of t he s yst em may be mi si nterpreted as a s ys t em fault :
Engi ne not running - Program changes and driver advi s ory mes s ages are only avail abl e wi th the engine runni ngSpeci al program change att empted wi th DSC or ABS acti ve (t his i ncl udes ABS cycling which is operat ional when HDCis bei ng used on s lippery or l oose surfaces)Speci al program change att empted wi th overheat condi ti on pres ent on the act ive on-demand coupling.
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Publi s hed: 11-May-2011
Ride and Handling Optimization - Ride and Handling Optimization
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the Terrain Respons e s ys t em, refer t o t he rel evant Descript ion and Operat ion secti on in theworks hop manual .REFER to: Ri de and Handl ing Opt imi zat ion (204-06 Ri de and Handl ing Opt imizati on, 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.
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 InspectionMechanicalElectrical
* Ti re condit ion, pres sures, et cDriveline, Engine, Transmis s ion, Sus pensi on,component s (correct ins tall ati on, damage, etc)
Fus esHarness es /Connect orsTerrai n res pons e modul eEngi ne Cont rol Module (ECM)Transmis s ion Control Modul e (TCM)Ant i-Lock Brake Sys t em control modul eAct ive On-demand cont rol moduleDynami c s us pensi on cont rol module * Controllerarea network (CAN) ci rcuit s
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 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/t rans mis s ion i s s uspect and the vehicle remai ns under manufacturer warrant y, refer t o t heW 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/transmis s ion.
• 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 el ect ri cal volt age or resi s tance tes t s, al ways us e a digit al mult imet er (DMM) accurate to threedeci mal places , and wi th an up-to-date cali brat ion cert ificate. W hen t es ti ng res is t ance, always take t he res i st ance of t heDMM leads int 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 to: Di agnos ti c Trouble Code (DTC) Index - DTC: Terrain Res pons e Cont rol Modul e (ATCM) (100-00 GeneralInformat ion, Des cript ion and Operat ion).
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Publi s hed: 11-May-2011
Ride and Handling Optimization - Ride and Handling Optimization Switch
Removal and Inst all ati on
Removal
1.
2.
Installation
To i nst all , revers e t he removal procedure.1.
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Publi s hed: 11-May-2011
Driveline System - General Information - Driveline System
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the driveli ne s ys t ems , refer t o t he rel evant Des cript ion and Operat ion s ecti on in the works hopmanual. REFER to:
Dri ves haft (205-01 Driveshaft , Des cript ion and Operat ion),Univers al Joint s (205-01 Dri ves haft , Descripti on and Operat ion),Rear Drive Axle and Different ial (205-02 Rear Drive Axle/Different ial, Des cri pt ion and Operati on),Front Dri ve Axl e and Di fferenti al (205-03 Front Drive Axle/Different ial, Des cript ion and O perati on),Front Dri ve Halfs haft s (205-04 Front Drive Halfs hafts , Des cript ion and Operat ion),Rear Drive Hal fs haft s (205-05 Rear Drive Halfs hafts , 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: Cert ain driveli ne s ympt oms are als o common t o t he engine, trans mi s si on, wheel bearings , ti res , and other part sof the vehicle. For thi s reas on, ens ure that t he caus e of t he troubl e is in t he driveline before adjus t ing, repairing, orins t al li ng any new components .
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for s ys tem int egrit y and obvi ous s igns damage.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 , verify t he sympt om and refer t o t he Sympt om Chart, al ternat ively, check forDi agnos ti c Trouble Codes (DTCs) and refer t o t he DTC Index.4.
Identify the Condition
Gear Howl and W hine
Howli ng or whining of t he ring gear and pi nion i s due t o an incorrect gear patt ern, gear damage or i ncorrect beari ngprel oad.
Bearing W hine
Bearing whine i s a high-pi tched s ound si mi lar to a whis t le. It is us ually caus ed by worn/damaged pi nion beari ngs , whichare operat ing at drives haft s peed. Bearing noi se occurs at al l drivi ng speeds . Thi s dis ti ngui s hes i t from gear whine whi ch iss peed dependent .
As noted, pini on bearings make a hi gh-pit ched, whis t li ng noi s e, us ually at al l s peeds . If however t here i s only one pi nionbearing that is worn/damaged, the nois e may vary i n different driving phas es .
A wheel bearing noi se can be mis t aken for a pini on bearing nois e.
Chuckle
Chuckle that occurs on t he coas t dri vi ng phas e is us ual ly caus ed by exces si ve clearance between t he different ial gear huband t he different ial cas e bore.
Damage t o a gear toot h on t he coas t s ide can cause a nois e i dent ical t o a chuckl e. A very s mal l tooth nick or ri dge on theedge of a t oot h can caus e t he nois e.
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Knock
Knock, which can occur on al l driving phas es, has s everal caus es including damaged teet h or gears et.
A gear toot h damaged on t he drive si de is a common caus e of t he knock.
Clunk
Clunk i s a met all ic nois e heard when the aut omati c transmis si on is engaged in REVERSE or DRIVE. The noi se may als ooccur when t he thrott le i s applied or releas ed. Cl unk is caused by trans mi ss i on cal ibrat ion, backlas h i n t he dri vel ine orloos e s uspens ion component s and is felt or heard in t he vicini ty of t he rear drive axle.
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Bearing Rumbl e
Bearing rumble s ounds l ike marbl es being t umbled. Thi s condi ti on is us uall y caus ed by a worn/damaged wheel bearing.The lower pit ch is because the wheel bearing turns at onl y about one-t hird of the drives haft s peed. W heel bearing nois eals o may be high-pi tched, s imil ar t o gear noi s e, but wi ll be evident in al l four drivi ng modes.
Symptom Chart
SymptomPossible CauseActionNois e i s at cons t ant t oneover a narrow vehi cl e s peedrange. Us ual ly heard onl ight drive and coas tcondi ti ons
Rear drive axl eFor addi ti onal i nformat ion. GO to Pi npoi nt Tes tA.
Nois e i s t he s ame on driveor coas tRoad nois eW orn or damaged dri ves haftjoi ntDriveshaft cent er beari ngW heel bearing
Normal condit ion (road noi se)Check and ins tal l new components a required.REFER t o:Driveshaft - Vehi cl es W i thout: Di eselPart iculat e Fil ter (DPF) (205-01Driveshaft, Removal and Ins tall ati on),Rear W heel Bearing (204-02 RearSus pens ion, Removal and Inst all at ion),Front W heel Bearing (204-01 FrontSus pens ion, Removal and Inst all at ion).
Nois e i s produced wit h t hevehicle s t ati onary andwhen driving
EngineTrans mi ss ionFor addi ti onal i nformat ion. REFER to:Engine (303-00 Engine Syst em - GeneralInformat ion, Di agnos is and Tes ti ng),Di agnos ti cs (307-01 Aut omati cTrans mi ss ion/Transaxle, Di agnos is andTes ti ng).
Loud clunk in the driveli newhen s hifti ng from revers et o forward
Trans mi ss ion cal ibrat ionTrans mi ss ion MountTrans mi ss ionSus pens ion component sBackl ash in t he dri vel ineEngine i dl e s peed s et t oo highEngine mount
Us i ng the manufact urer approved diagnos t ics ys tem, re-configure t he Transmis s ion ControlModule (TCM) wi th the l ates t avai lablecali brati onIns pect and ins t al l new t ransmis s ion mount sas requi redFor t ransmis s ion diagnos ti cs .REFER t o: Diagnos t ics (307-01 Automat icTrans mi s si on/Trans axl e, Diagnos is andTes ti ng).Ins pect and ins t al l new s uspens ioncomponent s as requi redIns pect and ins t al l new dri vel ine component sas requi redCheck and adjus t the i dle s peed as requi redIns pect and ins t al l new engi ne mounts asrequi red
Cli cki ng, popping, orgri nding nois esInadequate or contami nat edl ubricati on in the front /reardri ve halfshaft cons tant veloci ty(CV) jointAnother component cont act ingt he front/rear dri ve hal fs haftW heel bearings , brakes ors uspens ion component s
Ins pect, cl ean and lubri cat e wit h new greaseas requi redEns ure al l ot her components are clear fromfront /rear drive halfs haftIns pect and ins t al l new components asrequi red
Vibrati on at highways peedsOut of balance wheel (s ) ort ire(s )Driveshaft mis ali gned/out ofbalanceDriveshaft cent er beari ngt ouching body mount ing point
Bal ance and i ns t all new wheel(s ) and ti re(s) asrequi red.REFER t o: W heel and Ti re (204-04 W heel s andTi res , Removal and Ins t allat ion).Check dri ves haft ali gnment . Check drives haftbalance us ing manufact urer approveddi agnos ti c s ys t emCheck dri ves haft ali gnment
Shudder, Vibrat ion DuringAccel erati onPowert rai n/dri vel inemi s al ignmentHi gh cons tant velocit y (CV) jointoperat ing angles caus ed byi ncorrect ride hei ght
Check for powert rai n/dri vel ine mis alignmentand rect ify as requi red. Ins t al l newcomponent s as requi redCheck the ri de hei ght and verify the corrects pri ng rat e. Ins t al l new components asrequi red
Lubricant LeakRear drive axl e breatherDamaged s ealRear drive axl e fi ll er pl ugRear drive axl e cover/acti veon-demand coupl ing joint
Check oil level and correct as neces s aryIns tall new drives haft/pinion seal as required.REFER t o: Act ive On-Demand Coupl ing DrivePi ni on Seal (205-02 Rear Dri veAxle/Different ial , Removal and Ins t al lat ion).Check and ins tal l new fi ll er pl ug as requiredRe-seal leaking joint s as required
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1
2
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: Rear Different ial Control Module (RDCM) (100-00 GeneralInformat ion, Des cript ion and Operat ion).
Pinpoint Tests
PINPOINT TEST A : EXCESSIVE DRIVELINE NOISE
T ESTCONDIT IONSDET AILS/RESULT S/ACT IONS
A1: CHECK NO ISE FRO M VEHICLE ON ROAD T EST
Road t est vehicle to det ermi ne load and s peed condi ti ons when noi se occurs .
As s es s t he nois e wi th different gears s elected.
Does t he noi s e occur in di fferent gears at t he s ame vehi cle s peed?YesINSTALL a new rear dri ve axle/di fferenti al as s embly.REFER t o: Di fferenti al Cas e (205-02 Rear Dri ve Axle/Di fferenti al, Removal and Ins tall ati on).RE-TEST t he s yst em for normal operati on.NoREFER t o: Engine (303-00 Engine Sys tem - General Informat ion, Diagnosi s and Test ing) /Di agnos ti cs (307-01 Aut omati c Trans mis s ion/Trans axle, Diagnos is and Tes ti ng).
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Publi s hed: 11-May-2011
Driveshaft -
General SpecificationItemSpecification
TypeThree piece dri ves haft , incorporat ing centre bearings , CV joints , a s waged front s ect ion, and longpl unge double offset joint at the rear of the front s ect ionFixed const antvelocit y joi ntFront
Plunging cons tantvelocit y joi ntRear
Long plunge doubl eoffs et jointRear of front s ect ion
Torque Specifications
DescriptionNmlb-ft
CV joint s upport bracket bolt s t o floor2518Driveshaft to power t rans fer unit Torx bol ts *4030
Driveshaft to rear different ial pinion flange Torx bol ts *4030
CV joint s upport bracket bolt s t o t o CV joint2418* New nuts/bolts must be fitted