
Symptom
Possible Cause Action
Engine
hes it at es /poor
accel erati on Intake air s ys tem leak Res trict ed exhaus t sys tem
Fuel sys tem leak, blocked/res tricted
EGR val ve fault
Turbocharger act uat or fault Check int ake air s yst em for leaks
Check exhaus t s ys t em for blockage/rest ri cti on
Check fuel s yst em for leaks and
bl ockage/res t ri ct ion. Read DTCs and refer to
relevant DTC Index Check EGR s ys tem for fai lure.
REFER t o: Engi ne Emis s ion Cont rol (303-08B
Engine Emis s ion Control - TD4 2.2L Di esel ,
Diagnos is and Tes t ing). Check for t urbocharger act uat or fault . Read DTCs
and refer t o rel evant DTC Index Engine s t ops /st all s
Breat her sys tem
di sconnect ed/res trict ed Intake air s ys tem leak/rest ri cted
El ect ronic engine controls
Fuel sys tem leak, blocked/res tricted
EGR val ve fault Ens ure the engine breat her sys t em i s free from
res tricti on and is correctl y ins tal led Check int ake air s yst em for leaks/res t ri ct ion
For electronic engine control t es ts .
REFER t o: Electroni c Engi ne Control s (303-14B
El ect ronic Engi ne Cont rol s - TD4 2.2L Dies el ,
Diagnos is and Tes t ing). Check fuel s yst em for leaks and
bl ockage/res t ri ct ion. Read DTCs and refer to
relevant DTC Index Check EGR s ys tem for fai lure.
REFER t o: Engi ne Emis s ion Cont rol (303-08B
Engine Emis s ion Control - TD4 2.2L Di esel ,
Diagnos is and Tes t ing). Exces s ive fuel
cons umpt ion Fuel pres sure, fuel pump, fuel l ines
bl ocked/cont aminat ed, l eaki ng Injector l eak
El ect ronic engine controls
EGR val ve fault Check fuel l ines for l eakage, bl ockage/res t ri ct ion.
For fuel pump t es ts , check DTCs and refer to
relevant DTC Index Carry out fuel i njector leak t es ts , ins tal l new
injectors as neces s ary.
REFER t o: Fuel Injector (303-04B Fuel Charging
and Cont rols - TD4 2.2L Di esel , Removal and
Ins tal lati on). For electronic engine control t es ts .
REFER t o: Electroni c Engi ne Control s (303-14,
Diagnos is and Tes t ing). Check EGR s ys tem for fai lure.
REFER t o: Engi ne Emis s ion Cont rol (303-08B
Engine Emis s ion Control - TD4 2.2L Di esel ,
Diagnos is and Tes t ing). DTC Index
• NOTE: If a module or component i s s uspect, and t he vehi cl e remains under t he Manuf acturers warranty, refer to the
W arranty Pol icy and Procedure manual (s ecti on B1.2), or det ermi ne if any pri or appro val programme i s in operat ion, pri or to
t he ins tal lati on of a new modul e/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 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 three
deci mal places , and wi th an up-to-date cali brat ion cert ificate. W hen t es ti ng res is t a nce, always take t he res i st ance of t he
DMM leads int o 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
P008821 Fuel Rai l/Sys t em Pres s ure -
Too Hi gh Press ure cont rol valve
ci rcuit - s hort t o power Press ure cont rol valve
s t uck cl os ed Check for pres sure cont rol valve DTCs and refer to
rel evant DTC Index
P008822 Fuel Rai l/Sys t em Pres s ure -
Too Hi gh Leaking fuel s ys tem Vol ume cont rol valve
ci rcuit - s hort t o
ground, open circuit Vol ume cont rol valve
s t uck open Check for fuel leaks. Refer t o el ect ri cal circuit di agrams
and check volume control val ve ci rcuit for short to
ground, open circui t. Ins tall a new high pres s ure fuel
pump as requi red
P008824 Fuel Rai l/Sys t em Pres s ure -
Too Hi gh Leaking fuel s ys tem Press ure cont rol valve
s t uck Press ure cont rol valve
ci rcuit - s hort t o
ground, power, open
ci rcuit Check for fuel leaks. Refer t o el ect ri cal circuit di agrams
and check pres s ure control val ve ci rcuit for short to
ground, power, open circui t. Ins tall a new pres s ure
cont rol valve as requi red

DT C
Description Possible Cause Action
P008827 Fuel Rai l/Sys t em Pres s ure -
Too Hi gh Leak i n high pres s ure
s ecti on Injector nozzl e s t uck
open/worn W orn hi gh pres s ure
pump, fil ter blocked Leaking pres s ure
control val ve Low pres sure s ect ion
press ure low (l eak in
s ys tem, pump out put
l ow) Check for fuel leaks in hi gh and low pres sure s yst ems ,
check for addit ional DTCs and refer t o DTC Index
P009B00 Fuel Pres sure Reli ef Cont rol
Ci rcuit /Open Press ure cont rol valve
control ci rcuit - open
l oad Carry out the pi npoint t es ts as s oci at ed wi th this DTC
usi ng t he manufact urer approved diagnost ic s ys tem
P009C00 Fuel Pres sure Reli ef Cont rol
Ci rcuit Low Press ure cont rol valve
control ci rcuit - s hort
t o ground Carry out the pi npoint t es ts as s oci at ed wi th this DTC
usi ng t he manufact urer approved diagnost ic s ys tem
P009D00 Fuel Pres sure Reli ef Cont rol
Ci rcuit Hi gh Press ure cont rol valve
control ci rcuit - s hort
t o power Carry out the pi npoint t es ts as s oci at ed wi th this DTC
usi ng t he manufact urer approved diagnost ic s ys tem
P009E00 Fuel Pres sure Reli ef Cont rol
Performance/St uck O ff Press ure cont rol valve
power s tage exces s
t emperat ure Refer to electrical ci rcuit diagrams and check pres s ure
cont rol valve circui t for high resi s tance, i f no faul t
identi fi ed ins tal l new ECM. Refer to the new
module/component i nst all at ion not e at t he top of t he
DTC Index
P031300 Mi s fire Det ect ed W i th Low
Fuel Low fuel - mis fire
i nduced by ECM to
warn driver before
s hut off Carry out the pi npoint t es ts as s oci at ed wi th this DTC
usi ng t he manufact urer approved diagnost ic s ys tem
P115A68 Low Fuel Level - Forced
Limit ed Power (event
i nformat ion DTC only) Low fuel - s econd
warning after clus ter
warning l amp
i ll uminated Check for addi ti onal rel ated DTCs and refer t o rel evant
DTC Index
P115B68 Low Fuel Level - Forced
Engine Shutdown (event
i nformat ion DTC only) Low fuel - fi rs t
warning after clus ter
warning l amp
i ll uminated Low fuel - fuel empty,
engine shut off Check fuel l evel . Check for addit ional rel at ed DTCs and
refer t o relevant DTC Index
P226600 W ater in Fuel Sensor Circui t
Low Fuel Filt er W at er In
Fuel s wit ch short
ci rcuit t o ground Carry out the pi npoint t es ts as s oci at ed wi th this DTC
usi ng t he manufact urer approved diagnost ic s ys tem
P226700 W ater in Fuel Sensor Circui t
Hi gh Fuel Filt er W at er In
Fuel s wit ch short
ci rcuit t o batt ery Carry out the pi npoint t es ts as s oci at ed wi th this DTC
usi ng t he manufact urer approved diagnost ic s ys tem
P228800 Injector Control Press ure
Too Hi gh Leaking fuel s ys tem Fuel high pres s ure
pump ci rcuit - s hort t o
ground, open circuit Fuel high pres s ure
pump fail ure Check for fuel leaks. Refer t o t he electrical ci rcuit
diagrams and check fuel high pres s ure pump circuit for
s hort to ground, open circui t. Inst all a new high
pres sure pump as requi red

Publi s hed: 11-May-2011
Fuel Tank and Lines - TD4 2.2L Diesel - Fuel Filter
Removal and Inst all ati on
Removal
• W ARNINGS: W ai t for a mini mum of 1 minute aft er the engine has s t opped before carryi ng out any
repair t o t he fuel inject ion
s ys t em. Avoid flames , s parks or li ght ed s ubs t ances .
Be prepared t o col lect escaping fuel .
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).
1.
Remove t he engi ne cover.
Refer t o: Engi ne Cover - TD4 2.2L Dies el (501-05 Interior Tri m and
Ornament ati on, Removal and Ins tal lat ion).
2. 3.
T orque:
9 Nm 4.

A CANCEL s wit ch.
The s ys t em al so uses t he fol lowi ng:
The ECMThe s toplamp s wit ch.The APP s ens or
The ECM controls t he s et speed by modi fying engine speed/t orque and reques ti ng gear changes from t he transmis si on(aut omati c variant s only).
The s peed control sys t em als o us es i nput s from t he brake pedal swit ch, t he APP s ens or, t he ECM and t he ABS controlmodule.
The s peed control is operat ed by t he dri ver us ing only the s t eering wheel s wit ches . W hen s peed is act ive, the ECMregulat es the PW M s i gnal s to the fuel injectors t o adjus t the fuel supply as required to maintai n t he s et s peed.
Duri ng s peed control operat ion, t he ECM control s vehicle s peed by adjus ti ng fuel inject ion durat ion and ti ming. W hen t heaccelerator pedal i s pres s ed wit h s peed cont rol act ive, t he ECM output s a calculated throt tl e angle s i gnal in place of theact ual throt t le angle si gnal s produced by the APP s ens or. The cal cul ated t hrot tl e angle i s deri ved from fuel demand.
CONTROL SWITCHES
ItemPart NumberDescription1-Set target s peed/increas e s peed
2-Set target s peed/decreas e s peed
3-Resume set s peed4-Speed control sus pend.
The s peed control swit ches are located on t he LH s i de of the s t eering wheel. The s witches are connect ed via fly leadsdirect ly t o t he clock s pring. All t he s peed cont rol s wit ches are non-lat chi ng momentary rocker swit ches . The mini mum s ets peed is 18 mph (30 (km/h). Speed cont rol is aut omati cal ly s us pended i f the vehicle speed falls bel ow 15 mph (24 km/h).
The s peed control swit ches are res is t ive l adder type s wi tches. There are t hree rocker s wit ches as s oci at ed wi th speedcont rol , two of whi ch are for adapt ive s peed cont rol (where s peci fi ed). The s wit ches vary the resi s tance of a s ignal vol tages ent t o t he ECM. The s wit ches recei ve a 5 volt reference s upply. The ECM meas ures t he ret urned volt age to det ermi newhich s wi tch has been pres s ed.
Suspend Switch
The s uspend/resume swit ch controls t he s electi on of speed control. W hen t he i gni ti on is i n pos it ion II, a si ngle pres s oft he sus pend s wit ch wil l act ivate the s us pend mode. This temporaril y s wit ches off the s peed cont rol s yst em, but ret ai nst he previousl y s et s peed i n t he ECM memory.
Resume Switch
A s econd pres s of the s wi tch re-acti vat es the previousl y s et speed after t he s peed control has been s us pended by pres s ingt he sus pend s wit ch or by depres s ing the brake pedal.
Set Speed/Increase/Decrease Speed (+/–) Switches
W hen t he s peed cont rol s ys t em i s act ive, pres s ing t he '+' s wi tch s ets the controlled speed t o t he current road speed oft he vehi cl e. Subs equent moment ary pres s es of the s wi tch i ncreas es t he s et road s peed by 0.6 mph (1 km/h). If t he s wit chis pres sed and hel d the road s peed wil l conti nue to increas e unti l the s wi tch i s releas ed. Moment ari ly press i ng the '–'s wit ch, decreas es the s et s peed by 0.6 mph (1 km/h). If t he s wit ch is press ed and held, t he s et speed i s decreas ed unt ilt he swit ch is released.
CONTROL DIAGRAM
• NOTE: A = Hardwi red; D = Hi gh s peed CAN bus

A CANCEL s wit ch.
The s ys t em al so uses t he fol lowi ng:
The ECMThe s toplamp s wit ch.The APP s ens orA clut ch s wit ch
The ECM controls t he s et speed by modi fying engine speed/t orque and reques ti ng gearchanges from the t rans mis s ion(aut omati c variant s only).
CONTROL DIAGRAM
• NOTE: A = Hardwi red; D = Hi gh s peed controller area net work (CAN) bus
ItemPart NumberDescription
1-APP2-Speed cont rol s teeri ng wheel s wi tches
3-Clockspring
4-TCM5-Ins t rument clus ter
6-ECM
7-Stoplamp s wit ch8-Speed cont rol inhibi t swi tch

Publi s hed: 11-May-2011
Climate Control - Heating and Ventilation
Des cript ion and Operat ion
COMPONENT LOCATION
ItemPart NumberDescription1-Automat ic Temperat ure Cont rol (ATC) modul e
2-Right Hand (RH) vent il at ion out let
3-Left Hand (LH) vent il at ion out let4-Heater as s embl y
5-Blower mot or cont rol module
OVERVIEW
Two l evels of heat ing and venti lati on are avai lable. High s pecifi cat ion vehicles are fit ted wit h a dual zone aut omati cs ys t em, which can provide di fferent temperature s et t ings for t he LH and RH si des of the cabin. The dual zone s yst em mayals o be fit t ed wit h a pol luti on s ens or t o cont rol t he qual it y of air in the cabin.
Lower s pecifi cat ion vehicles are fit ted wit h a s ingle zone manual s yst em.
The heat er ass embl y for both sys t ems is ins tall ed on t he vehi cl e cent er li ne, bet ween the i nst rument panel and the enginebulkhead.
The ATC module cont rols operat ion of t he blower mot or vi a t he blower mot or control modul e, whi ch is mount ed on t hebulkhead si de of the heat er as s embly cas ing.For addi ti onal i nformat ion, refer to: (412-01 Cli mate Cont rol )

Blower mot orHeater coreCabin ai r fil ter.For addit ional informat ion, refer t o: Air Di st ri buti on and Fi lt eri ng (412-01 Climat e Cont rol, Des cript ion andOperat ion).A/C evaporat or.For addit ional informat ion, refer t o: Air Condit ioning (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Air i ntake flap and s tepper motor.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Air di st ri but ion fl aps and s t epper mot ors .For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Temperature blend flaps and s t epper mot ors .For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).Electric boos ter heater (if fi tt ed).For addit ional informat ion, refer t o: Electric Boos ter Heater (412-02 Auxi li ary Cl imat e Control, Des cript ion andOperat ion).
Blower Motor
The blower mot or compris es an open hub, centrifugal fan powered by an elect ric motor. Operati on of the bl ower motor iscont rol led by t he ATC module in conjuncti on wit h t he blower mot or control modul e. The ATC module provi des a Puls e W i dthModulated (PW M) si gnal t o t he blower motor control modul e based on the requi red bl ower speed. The bl ower motor cont rolmodule i nterprets the PW M s ignal as a blower mot or speed and controls t he volt age to t he blower mot or accordingl y.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
Heater Core
The heat er core provi des t he heat s ource to warm the ai r bei ng s uppl ied i nto t he cabin. The heat er core is an alumi num, 2pass , fin and t ube heat exchanger ins t al led acros s t he widt h of t he heat er ass embly. Two al uminum tubes att ached t o t heheat er core extend t hrough t he engi ne bulkhead and connect t o t he engine cool ing s ystem. W hen the engine is runni ng,engi ne cool ant is const antl y ci rculat ed through the heater core by the coolant pump. For addit ional informati on, refer t o:
Engi ne Cool ing (303-03A Engine Cooli ng - I6 3.2L Petrol, Des cript ion and Operat ion),Engi ne Cool ing (303-03B Engine Cooli ng - TD4 2.2L Di esel , Descri pti on and Operat ion).
VENTILATION OUTLETS
The vent il ati on out let s all ow t he free flow of ai r through t he cabi n. The out let s are ins tall ed in the LH and RH rear quart erpanel s, behind the t ail lamps .
Each vent ilat ion out let compri ses a gril le covered by a s oft rubber fl ap, and i s effect ively a non-ret urn val ve. The flapsopen and cl ose aut omat ical ly depending on t he different ial between cabin and out si de air pres s ures .
PRINCIPLES OF OPERATION
Operat ion of t he heat ing and venti lat ion s ys tem is controlled by the ATC modul e.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).

int ernal components of t he A/C compres sor.
Alt hough di fferent unit s, t he A/C compres sors fi tt ed t o both the i 6 petrol engi ne and the TD4 dies el engine are bothvariabl e dis placement uni ts . The dis placement (flow of refrigerant) i s cont rol led t o mat ch t he thermal l oad of theevaporat or.
Operat ion of t he A/C sys t em i s cont roll ed by t he Automat ic Temperat ure Cont rol (ATC) module.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
A/C COMPRESSOR
• NOTE: i6 A/C compress or s hown, TD4 s i mil ar
The A/C compres sor i s dri ven by the engine acces s ory drive belt and ci rculates refrigerant around t he s yst em bycompres si ng low pres sure, low t emperat ure vapor from t he evaporat or and dis chargi ng t he res ult ant hi gh pres s ure, hight emperature vapor t o t he condenser.
To prot ect t he s yst em from exces s ive pres s ure, a press ure rel ief val ve is ins tall ed in the out let s ide of t he A/C compres sor.The pres s ure relief valve vents excess pres sure int o t he engi ne compart ment .
i6
i6 vehi cl es are fit ted wit h a Zexel-Val eo KC-88 variable di s pl acement A/C compres sor. Compres sor di spl acement iscont rol led by t he Engine Control Modul e (ECM) bas ed on current evaporator t emperature and t arget evaporat or temperat ures ignals recei ved from t he ATC module. From thes e values t he ECM calculates t he required compres s or di s pl acement andprovides a Pul se W i dt h Modulat ed (PW M) s ignal t o t he compres s or s olenoid val ve. The compres s or s olenoid val ve ismounted on the rear of t he compres s or and i nterprets the PW M s ignal as a dis placement val ue and alt ers t he posi ti on oft he int ernal s was h plat e accordingly.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
The ECM wi ll als o reduce t he dis placement of the A/C compres s or to i ts mini mum l evel i f 'ful l throt t le' or aut omati ct ransmis s ion 'ki ck down' is request ed. Thi s feat ure i s not pres ent on Gul f s pecificati on vehi cl es.
Compres s or cl ut ch engagement is cont roll ed by t he ECM.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
TD4
TD4 vehicles are fi tt ed wi th a Vis teon VS16 vari able di spl acement A/C compress or. Dis placement i s cont rol led i nt ernall y bya control valve, which i s int egral wit h t he compres sor. The cont rol val ve meas ures the input and out put pres sures of therefri gerant ent eri ng and leaving t he compres sor and control s t he angl e of t he int ernal s was h plat e accordingly.
• NOTE: There i s no external control over A/C compress or s wash plate angl e. Cons equent ly, compress or dis placement isneit her meas ured nor calculated by any ext ernal cont rol component.
Compres s or cl ut ch engagement is cont roll ed by t he ECM.For addit ional informat ion, refer t o: Cont rol Component s (412-01 Cli mat e Cont rol , Descripti on and Operat ion).
CONDENSER