LAND ROVER FRELANDER 2 2006 Repair Manual

Item
Part Number Description
1 -ISOFIX fast ening point s
The rear s eat is a 60/40 s plit confi gurati on, and i s des igned to fold in order to i n crease luggage capaci ty. Removal of t he
rear s eat head res ts wi ll all ow t he s eat to fold compl et ely flat t o t he fl oor.
The rear s eat is manufact ured from 2 high s t rength st eel ext rus ions t hat are joined at each end wit h a hi gh st rengt h s teel
bracket and pi vot . The rear s eat bas e i s formed wi th an ant i-s ubmarine shelf t hat wi l l ret ai n t he rear occupants i n t he s eat
duri ng a front end col li si on.
The s eat bas e and backrest are i nl ayed wit h formed s ect ions of dual hardnes s mol ded foam that form the s eat s quab and
cus hion. The s eats provi de excell ent support and comfort for t he rear occupants .
An i nject ion molded armres t wit h s t owage tray is mount ed in the center of t he backre s t, and may be fol ded down from t he
rear s eat when the center pos it ion i s not occupi ed.
ISOFIX fast ening point s are manufact ured on the rear s eat frame and are provided for secure fas tening of compati ble chil d
s afety seat s t o the 2 outer s eat pos it ions . The ISOFIX fas t eni ngs provide t he s afes t method of chil d s afety seat res t rai nt ,
as t he chi ld s afet y s eat is not able to roll or become det ached from t he rear s eat , even during s evere vehicle maneuvers .
CONTROL DIAGRAM - FRONT POWER OPERATED NON-MEMORY SEATS (SHEET 1 OF 3)
• NOTE: A = Hardwi red; N = Medium s peed Cont roll er Area Net work (CAN) bus; O = LIN bus .

Item
Part Number Description
1 -Driver's power operat ed non-memory s eat sl ide mot or
2 -Driver's door l atch wi th ajar s wit ch
3 -Pas senger power operat ed non-memory s eat s l ide mot or
4 -Driver's door control modul e
5 -Pas senger power operat ed non-memory s eat s quab recli ne mot or
6 -Pas senger power operat ed non-memory s eat s wi tch pack
7 -Pas senger s eat relay
8 -CJB wi th internal bat tery-s aver t imer rel ay
9 -St art cont rol module
10 -AJB
11 -Power operated l umbar support s wi tch

12
-Power operated l umbar support mot or
13 -Driver's power operat ed non-memory s eat swi tch pack
14 -Driver's power operat ed non-memory s eat hei ght mot or
15 -Driver's power operat ed non-memory s eat squab recl ine mot or
CONTROL DIAGRAM - DRIVER'S POWER OPERATED MEMORY SEAT (SHEET 2 OF 3)
• NOTE: A = Hardwi red; N = Medium s peed CAN bus; O = LIN bus . Item
Part Number Description
1 -Driver's power operat ed memory s eat s l ide mot or
2 -Driver's door l atch wi th ajar s wit ch

3
-Driver's door control modul e
4 -LH ext erior mirror
5 -Pas senger door control modul e
6 -RH ext eri or mirror
7 -Inst rument clus t er
8 -CJB wi th bat tery-s aver t imer relay
9 -St art cont rol module
10 -AJB
11 -Power operated l umbar support s wi tch
12 -Power operated l umbar support mot or
13 -Driver's power operat ed memory s eat s wi tch pack
14 -Driver's power operat ed memory s eat hei ght mot or
15 -Driver's power s eat module
16 -Driver's power operat ed memory s eat s quab recli ne mot or
CONTROL DIAGRAM - FRONT SEAT HEATING (SHEET 3 OF 3)
• NOTE: A = Hardwi red; N = Medium s peed CAN bus; O = LIN bus . Item
Part Number Description
1 -ATC modul e
2 -Driver's s eat heat ing module
3 -Pas s enger s eat heat ing module
4 -AJB
5 -CJB

6
-St art control modul e
PRINCIPLES OF OPERATION
Front Power Operated Non-Memory Seats
The dri ver's non-memory s eat wil l operate i n all i gni ti on power modes . The pas senger non-memory seat wi ll only operat e
when t he ignit ion i s i n power mode 6 (Ignit ion).
Power for front pas s enger s eat operat ion is s upplied from t he AJB via a pas s enger s e at power relay t o t he pas s enger s eat
cont rol s wit ch pack. Power for t he driver's s eat operat ion is s upplied di rectl y from the AJB t o t he dri ver's s eat cont rol
s wit ch pack. The front pas s enger and dri ver s eat power suppli es are controlled by th e CJB. The s eat s wi tch pack direct s the
volt age to t he relevant s eat adjus tment mot or when a s eat control swit ch is pres s ed. Two pins wi thin each of t he s eat
s wit ch packs cont rol t he s eat motors. Bot h pins are normal ly connect ed to ground.
The dri ver and pas senger s wit ch packs are al s o connected i n circui t wit h a bat tery-s aver t imer relay t hat i s located in, and
cont rol led by t he CJB. The bat tery-s aver t imer relay all ows operati on of the driver and pas s enger s eat cont rols for 10
mi nut es aft er the engine is s wit ched off, and the i gni ti on is then s elected t o an ap propriat e power mode. The 10 minute
t imer is res et if t he appropriat e i gni ti on power mode is retai ned and the driver's d oor i s opened or clos ed. The driver and
pass enger s eat operati on is inhibit ed i mmediat el y fol lowi ng cent ral locking of t he v ehi cl e.
Operat ing a seat mot or control swit ch appli es volt age to one of t he pins whi le t he o t her pi n remai ns connect ed t o ground.
Operat ing t he s eat motor cont rol s wit ch in the oppos it e direct ion reverses the power and ground connecti ons to the mot or,
all owing t he mot or pi ni on t o rot ate in t he oppos i te di recti on. In t he event t hat a m ot or sei zes or s t icks , an i nternal
t hermal cut -out s wit ch wil l trip to remove volt age from t he mot or.
Driver's Power Operated Memory Seat
The dri ver's memory s eat wil l operat e when t he i gni ti on is in power modes 4 (Acces so ry) and 6 (Ignit ion), and wi ll not
operate during power mode 9 (Engine crank).
Power for the driver's memory s eat operat ion i s s uppl ied di rectl y from t he AJB t o t h e power s eat module. The memory s eat
s wit ch pack i s connected t o t he power seat module that cont rol s t he operati on and me mory pos it ion of t he i ndi vi dual s eat
mot ors . The power s eat module i s connected on the medi um s peed CAN bus t o t he CJB an d the front LH and RH door
cont rol modules .
The power seat module is als o connect ed in ci rcuit wi th a batt ery-saver ti mer rel ay that is locat ed wi thin, and controlled by
t he CJB. The batt ery-saver ti mer rel ay allows operat ion of t he s eat cont rols for 10 mi nut es aft er the engine is s wi tched off,
and t he ignit ion i s t hen sel ect ed to an appropri at e power mode. The 10 minut e t imer i s res et if t he appropri at e i gni ti on
power mode is retai ned and the driver's door i s opened or clos ed. The driver's s eat operat ion is i nhi bit ed immedi ately
fol lowing cent ral locki ng of the vehicl e.
Reques t s for memory exterior mirror movements for a memory recal l are t rans mit ted on the medi um s peed CAN bus by t he
power seat module to t he front door control modul es. The front door cont rol modules direct ly control the memory s t ore and
recall pos it ions for t he memory ext eri or mirrors.
For addit ional informat ion, refer t o: Rear Vi ew Mi rrors (501-09 Rear View Mirrors , Des cript ion and Operat ion).
Power Seat Mod ule
The power seat module features driver s electable funct ions , and aut omat ic monit ori ng functi ons .
Driver Selectable Functions
Seat and ext erior mirror memory recall Immediat e s eat adjus t ment.
Seat and exterior mirror memory recall function
The memory recall functi on s ets t he driver's seat t o a s t ored pos it ion, and is acti v at ed when a swi tch pack memory
posi ti on butt on is pres sed. W hen memory recal l i s i ni ti ated, only 2 seat adjus tment mot ors wil l operat e at any one t ime to
li mit the overall current cons umpti on. To furt her minimize t he current l oad as the m otors energize, the i nit iati on of each of
t he 2 operati ng mot ors i s phas ed wi th a 10 mill is econd del ay. The cushi on s lide and backres t wil l move fi rs t , foll owed by
t he cus hion height .
As s oon as t he seat s wit ch pack memory pos it ion but ton is pres s ed, a mes sage i s t ran s mit ted by the power s eat modul e
on t he medium s peed CAN bus to the front door control modul es. The door cont rol modu les t hen act ivat e t he memory
recall pos it ions for t he exteri or mirrors. The i nst rument clus t er mess age cent er wil l di s pl ay memory recall mes s ages when
a memory recall i s acti vat ed.
The memory recall functi on operates wit h 2 s eparate modes; t he operat ion of each mod e is dependant on t he vehicle
s tat us when the seat memory posi ti on butt on is pres sed.
Memory recall operati ng modes:
One-t ouch mode Proport ional mode.
One-Touch Mode
W hen t he vehicle i s s tat ionary and a s wit ch pack memory pos it ion butt on i s pres sed, t he memory recall functi on wil l
operate in 'one-touch' mode. One t ouch mode all ows the seat and exterior mirrors t o immediatel y move t o t he request ed
s tored memory pos i ti on.
If a s eat adjus t ment or memory pos it ion but ton i s operat ed during memory recal l 'one -t ouch' mode, t he current memory
recall wi ll be cancell ed and t he seat (and ext eri or mirrors via t he medium s peed CAN bus) wi ll i mmediat el y s top movi ng.
The s eat will t hen commence movi ng in the di recti on that corresponds to the press ed s wi tch.

Memory recall is al s o immedi atel y cancelled if t he vehi cl e is driven from t he st ati o nary pos it ion before t he seat has
reached the reques t ed memory pos i ti on.
Proport ional Mode
If the vehicle is already in moti on when the swi tch pack memory posi ti on butt on is p ress ed, the memory recal l functi on wil l
operate in 'proport ional' mode. Proport ional mode recal ls the s eat (and ext erior mi r ror) pos it ion for the durat ion t hat the
memory s wit ch is held in the pres s ed s tat e. W hen t he memory pos i ti on but t on is relea s ed the memory recal l wil l
immediatel y s top, unles s the seat has already reached t he int ended memory pos it ion.
In order to reach t he int ended s t ored memory posi ti on whil e t he vehi cl e is moving, t he memory pos it ion but ton mus t not
be rel eased unt il all s eat, and exterior mi rror movement s are compl et e.
Immediate seat adjustment function
The immediate adjust ment functi on is act ivated when a s wit ch pack s eat posi ti on s wit ch (recl ine, s lide or height ) is
operated.
Pres s ing any of t he seat adjus t ment swi tches wil l init iat e t he corres pondi ng direct i on mot or to move t he seat i n t hat
direct ion, unti l t he s wit ch is releas ed. Onl y 2 s eat mot ors wi ll operate at any one ti me.
Automatic Monitoring Functions
The power seat module aut omati c monit ori ng functi ons are detai led as follows :
Stal l det ect ion mode Sleep mode
Batt ery moni tor mode.
Stall detection mode
A s eat mot or i s deemed t o have st all ed if t here i s no change i n t he input t hat i s re ceived from the corres ponding feedback
s ens or for 200 mill is econds , while that axis i s being driven.
If a s tall condit ion i s det ected by t he power seat module then t he dri ve to that axi s i s cancell ed for t he remai nder of t hat
memory operati on (memory recal l), or unt il t he s wit ch is re-s elected (immediate s eat adjus t ment).
For al l seat mot or manual movements during an immedi at e s eat adjus tment funct ion, wh en a mot or is driven and a s t al l
occurs the power s eat modul e records and s t ores t he s tal l pos it ion (s oft s t op) t hat the s t all occurred. If movement occurs
beyond t he s tored s oft s top st all pos it ion, then t he s tal l pos it ion i s eras ed from t he power s eat modul e memory. Thi s wil l
always all ow movement past a previousl y recorded s t all posi ti on once movement has be en regi st ered beyond that pos it ion
(i.e. by press ing the s wi tch for longer t han 2 s econds ).
If the mot or movement has s t opped due t o a motor s tal l (s eat obs t ructi on for example ), once t he obst ruct ion i s cl eared
t hen that axi s may be act ivated again to move pas t t he new s oft s t op s tal l pos it ion by re-s elect ing t he appropriat e s wit ch
and pres s ing for longer t han 2 s econds . If t he s wit ch is not operat ed to move t he se at pas t the new soft s top pos it ion,
t hi s posi ti on wi ll remai n s tored in the power s eat modul e memory as t he full axis mo vement .
If motor movement has st opped due to los s of sens or feedback (s ens or or wiring failu re) then t hat axi s may be acti vat ed
agai n t o move pas t the st all posi ti on by re-s electi ng the appropriate s wit ch and pre s si ng for l onger t han 2 s econds. This
all ows cont rol of the motor t o be mai nt ained i f sens or feedback i s los t .
Upon re-s el ect ion of movement , if s ens or puls es are det ect ed t hen the mot or wil l con t inue t o be dri ven unt il t he s wit ch is
rel eas ed or another s tall condit ion i s det ected. If s ens or feedback is not det ect ed then t he mot or is only driven for 0.5
s econd and t hen s tops , unt il t he s wit ch is releas ed and then pres s ed again for longe r t han 2 s econds , when a furt her 0.5
s econd of acti vat ion i s permi tt ed and s o on. This i s known as 'i nch mode'.
If there is a fail ure wit h the medium speed CAN bus net work, the seat wi ll operate i n 'inch mode'.
• NOTE: For di agnos t ic purpos es, an i ndicat ion of medi um s peed CAN bus dis connecti on is apparent i f the s eat is operat ing
in 'inch mode' and eit her t he s eat cont rol module, CJB or door cont rol modules are n ot s hown connect ed t o t he medium
s peed CAN bus.
Sleep mode
The power seat module features a s leep mode t o reduce power cons umpt ion t o t he requi red mi ni mum.
If the power s eat modul e is bei ng prevent ed from ent eri ng s leep mode due t o mot or mo vement , memory recall or s wit ch
pack operat ion, t hen the modul e wil l ent er s leep mode when t he current funct ion has t ermi nat ed.
• NOTE: In t he cas e of a memory recal l, all memory recall operat ions are carri ed out before t he power seat module ent ers
s leep mode, and not jus t the current motor movement.
The power seat module will exit s l eep mode when any CAN bus acti vi ty is det ect ed.
Battery monitor mode
The power seat module moni tors t he input power s upply t o make s ure there is suffi ci e nt bat tery vol tage avail abl e for
engi ne cranking. If t he batt ery volt age drops below 10.5 volt s , then t he power seat module ignores all reques ts for a
memory recall unti l the bat tery vol tage i s great er t han 11.0 vol ts .
If the bat tery vol tage drops bel ow 8.5 vol ts , t hen the power s eat modul e ignores al l reques t s for s eat movement unt il t he
batt ery volt age is greater t han 9.0 volt s .
If the bat tery vol tage i s great er t han 16.5 volt s , then t he power seat module ignore s all reques t s for s eat movement unt il
t he bat t ery volt age drops below 16.0 volt s.

Publi s hed: 11-May-2011
Seating - Seats
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the seat s, refer t o the relevant Descri pti on and Opera t ion s ect ion in t he works hop manual.
REFER to: Seats (501-10 Seati ng, Des cri pti on and Operati on).
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 does
not guarant ee confirmat ion of a faul t, and may als o caus e addit ional fault s i n t he v ehi cl e being t est ed and/or t he donor
vehi cl e.
1. Verify t he cus t omer concern.
1.
2. Vis ually ins pect for obvious s igns of mechani cal /elect rical damage and s ys t em i nt egr i ty.
2.
Visual Inspection Mechanical Electrical
Condit ion, correct ins tal lati on and s ecurit y of seat component s and fi xings Fus es
Harness es for damage/corros ion
El ect ri cal connect ors
Damaged/corroded pins
3.
If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) before
proceeding t o t he next s t ep
3.
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 Ch art, al ternat ively check for
Di agnos ti c Trouble Codes (DTCs) and refer t o DTC Index.
4.
Symptom Chart Symptom Possible Cause Action
No Driver s eat movement from driver
s eat swi tch-pack (including no memory
recall ) and no pass enger seat
movement from pas s enger s eat s wi tch
pack Comfort rel ay has
de-acti vat ed
which dis ables
Dri ver s eat and
Pass enger s eat
functi ons Ins ert Key and press ignit ion ON. Check s eat funct ion
from driver swit ch pack and pas senger swi tch pack
No Driver s eat movement from driver
s eat swi tch-pack (including no memory
recall ) Dri ver s eat s wit ch
pack ground
circuit - open
circuit Check SW Ground 1 connect ion bet ween dri ver s eat
s wit ch-pack and DSM for open circuit
One or more dri ver s eat axis does not
move from s wit ch pack or a memory
funct ion does not operat e correct ly Seat s wi tch s t uck
or seat s wit ch
pack/DSM
connecti on short
to power or
ground Check for the foll owi ng DSM DTCs . B1B9424 Seat Height
Up Swit ch. B1B9524 Seat Hei ght Down Swit ch. B1B9624
Seat Sl ide Forward Swit ch. B1B9724 Seat Sl ide Backward
Swit ch. B1C0024 Seat Recli ne Up Swit ch. B1C0124 Seat
Recl ine Down Swi tch. B1C0224 Memory St ore Swi tch.
B1C0324 Memory #1 Swi tch. B1C0424 Memory #2 Swi tch.
B1C0524 Memory #3 Swi tch. Check Driver s eat s wi tch
pack for swit ch st uck condit ion or Driver seat s wit ch
pack/DSM connecti ons for s hort to ground or power
condit ion
Driver seat axis movement from
s wit ch-pack occurs i n delayed inch
mode (s eat axis moves short di s tance
when s wit ch pres s ed for l onger t han 2
s econds and t hen st ops. Thi s coul d
occur on ANY seat axis i .e. s li de,
height or s quab) Motor Hall s ens or
on affect ed axis i s
not connect ed or
not recei ving
expected si gnal s Check for the foll owi ng DSM DTCs , B1B8731 Seat Height
Motor Speed/Posi ti on Sens or. B1B8931 Seat Sl ide Mot or
Speed/Pos it ion Sens or. B1B9331 Seat Recline Motor
Speed/Pos it ion Sens or. If pres ent t hen check Hall s ens or
feedback connect ion(s ) between s eat mot or(s) and s eat
module and al so check Hall s ens or Ground connect ions
for affect ed axis . W hen hall s ens or connect ion i ss ue
fi xed pres s s wit ch on affect ed axi s for l onger t han 2
s econds. By keeping t he s wit ch pres s ed the axis
movement s hould now operate for the durati on of swi tch-
pres s. Recali brate affect ed seat
Driver seat axis movement from
s wit ch-pack occurs i n i nch mode. W hen
any s eat axi s movement i s reques ted
from the s eat s wit ch pack t he
reques ted s eat axis i mmediat el y
moves a s hort di st ance then s t ops .
This behaviour occurs for ALL seat axis
movement (s l ide, hei ght or s quab)
when reques ted. MS CAN
communicati on not pos s ible Vehi cle has MS
CAN i ss ue Carry out CAN network int egrit y t es t s us ing t he
manufacturer approved diagnost ic sys tem

Symptom
Possible Cause Action
Driver Seat movement from
s wit ch-pack occurs i n i nch mode. W hen
any s eat axi s movement i s reques ted
from the s eat s wit ch pack t he
reques ted s eat axis i mmediat el y
moves a s hort di st ance then s t ops .
This behaviour occurs for ALL seat axis
movement (s l ide, hei ght or s quab)
when reques ted DSM i s
dis connected from
the MS CAN bus Check for Ins trument Clus ter DTC U020808 Los t
Communicati on wit h Driver Seat Module. If thi s DTC is
pres ent t hen check t he Driver Seat Module CAN bus
connect ions
Driver seat movement from
s wit ch-pack occurs i n i nch mode. W hen
any s eat axi s movement i s reques ted
from the s eat s wit ch pack t he
reques ted s eat axis i mmediat el y
moves a s hort di st ance then s t ops .
This behaviour occurs for ALL seat axis
movement (s l ide, hei ght or s quab,)
when reques ted Dri ver Door
Modul e (DDM) is
dis connected from
the CAN bus Check for DSM DTC U019900 Los t Communi cat ion wi th
DDM. If t his DTC is present t hen check t he DDM CAN bus
connect ions
DTC Index
• NOTE: If the control modul e or a component i s s us pect and the vehicle remains unde r manufacturer warrant y, refer t o the
W arranty Pol icy and Procedures manual (s ect ion B1.2), or determine i f any pri or appr oval programme is in operat ion, pri or
t 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 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 addi ti onal
informat 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 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: Ins pect connect ors for s igns of water ingres s , and pins for damage and/or co rros ion.
• 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 .
For a compl ete lis t of all Di agnos ti c Trouble Codes (DTCs) t hat could be logged on t his vehicle, pleas e refer to Sect ion
100-00.
REFER to: Di agnos ti c Trouble Code (DTC) Index - DTC: Driver Seat Module (DSM) (100-00 General Informat ion, Des cri pti on
and Operat ion).

Publi shed: 26-Jul-2011
Seating - Heater Mats
Diagnosi s and Tes ti ng
Principles of Operation
Heated s eats incorporate heat er elements in t he cushi on and the backres t of the s eat. Each cus hion heat er el ement has at hermal sens or, whi ch suppli es a feedback temperat ure si gnal t o t he rel at ed s eat heat er modul e. The backres t heat erelement s do not have a thermal sens or, and are regulat ed at the s ame temperat ure as the cus hi on heat er elements .
For a detail ed descripti on of the seat heater mat , refer t o t he rel evant Des cript ion and Operat ion s ecti on in the workshopmanual. REFER to: Seats (501-10, Descripti on and Operat ion).
Inspection and Verification
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
Seat heat er swi tches condi ti on and ins tal lati onFusesHarnes s es and connect orsSeat heat er modul eSeat heat er swi tchesSeat heat er mat
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 , verify t he sympt om and refer t o t he Sympt om Chart.4.
• 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 thewarranty poli cy and procedures manual (s ect ion B1.2), or det ermine i f any prior approval programme is i n operati on, priort 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 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 .
DTC Index
For a compl ete lis t of all di agnos ti c troubl e codes that coul d be l ogged on t his vehicle, pleas e refer to s ect ion 100-00.
Seat Heater Mat Application C hart• NOTE: To ens ure an accurate res is t ance readi ng, cali brated tes t equi pment must be used
Vehicle/YearCushion /Backrest
Heater Mat/ NT CResistor
Left Hand DriveRight Hand DriveMinimumResistanceMaximumResistance
PassengerSideConnector /Pin
Driver SideConnector /Pin
PassengerSideConnector /Pin
Driver SideConnector /PinOhms At20°C ±10°COhms At20°C ±10°CDi scovery 32006Cushi onHeater matC2950-1 andC2950-4C0085-1 andC0085-4C2950-1 andC2950-4C0085-1 andC0085-40,751,0
NTCres is t orC2950-2 andC2950-3C0085-2 andC0085-3C2950-2 andC2950-3C0085-2 andC0085-34 00010 000
Backres tHeater matconnect ed ins eri esconnect ed ins eri esconnect ed i nseriesconnect ed inseries0,440,59
Di scovery 42010Cushi onHeater matC3542-1 andC3542-4C3542-1 andC3542-4C3542-1 andC3542-4C3542-1 andC3542-40,701,0
NTCres is t orC3542-2 andC3542-3C3542-2 andC3542-3C3542-2 andC3542-3C3542-2 andC3542-34 00010 000
Backres tHeater matC3543-1 andC3543-2C3543-1 andC3543-2C3543-1 andC3543-2C3543-1 andC3543-20,40,7
Range RoverSport 2010Cushi onHeater matC3542-1 andC3542-4C3542-1 andC3542-4C3542-1 andC3542-4C3542-1 andC3542-40,931,25
NTCres is t orC3542-2 andC3542-3C3542-2 andC3542-3C3542-2 andC3542-3C3542-2 andC3542-34 00010 000
Backres tHeater matC3543-1 andC3543-2C3543-1 andC3543-2C3543-1 andC3543-2C3543-1 andC3543-20,430,6

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1
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1
2
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1
1
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6
Vehicle/YearCushion /Backrest
Heater Mat/ NT CResistor
Left Hand DriveRight Hand DriveMinimumResistanceMaximumResistance
PassengerSideConnector /Pin
Driver SideConnector /Pin
PassengerSideConnector /Pin
Driver SideConnector /PinOhms At20°C ±10°COhms At20°C ±10°C
Freelander 2Cushi onHeater matC3HS08C-1andC3HS08C-4
C3HS03C-1andC3HS03C-4
C3HS08C-1andC3HS08C-4
C3HS03C-1andC3HS03C-4
0,81,0
NTCres is t orC3HS08C-2andC3HS08C-3
C3HS03C-2andC3HS03C-3
C3HS08C-2andC3HS08C-3
C3HS03C-2andC3HS03C-3
4 00010 000
Backres tHeater matC3HS08B-1andC3HS08B-2
C3HS03B-1andC3HS03B-2
C3HS08B-1andC3HS08B-2
C3HS03B-1andC3HS03B-2
0,50,7
PINPOINT TEST A : SEAT HEATER MAT
T ESTCONDIT IONSDET AILS/RESULT S/ACT IONS
A1: CHECK FOR DT C'S
W here poss i bl e us e t he manufacturer approved diagnost ic sys tem t o review any logged s eat heatermat DTC'sW ere any s eat heat er mat DTC's logged?YesCarry out the hel p t ext acti on for any l ogged DTC's . Clear t he DTC and ret es t. If DTC's ret urn foll owt he tes t s li st ed below GO t o A2.NoGO to A2.A2: MANUAL CHECK
• NOTE: On full power the seat s houl d be hot t o t ouch
If required operate the vehicle ai r condit ioning on ful l for 10 mi nut es t o reduce the in vehicle ambientt emperature
Operat e t he s eat heater on full power
Does the seat heater operate correctl y?YesClear any s tored DTC's and retes t. If s eat heater operat ion i s correct no furt her acti on requiredNoGO to A3.A3: SHORT CIRCUIT T O GROUND
Refer t o t he electrical ci rcuit diagrams and the seat heater mat appli cat ion chart (see above) toi dent ify the connect orDi sconnect t he connect or
Refer t o t he electrical ci rcuit diagrams and check t he s eat heater mat ( heat er ci rcuit ) and ( t hermals ensor circui t ) for s hort circui t to groundAre eit her of t he ci rcuit s s hort circui t to ground?YesRepair t he ci rcuit or repl ace the s eat heat er mat as required. Refer to the warranty pol icy andprocedures manual, or determine i f any prior approval programme is i n operat ion, prior t o t hei ns t allat ion of a new module/component . Clear any s tored DTC's and ret estNoGO to A4.
A4: CIRCUIT CONT INUIT Y T EST
Refer t o t he electrical ci rcuit diagrams and check t he s eat heater mat ( heat er ci rcuit ) for ci rcuitcont inui ty
Does the seat heater mat heater circuit pas s t he cont inuit y t es t ?YesGO to A5.NoRepair t he ci rcuit or repl ace the s eat heat er mat as required. Refer to the warranty pol icy andprocedures manual, or determine i f any prior approval programme is i n operat ion, prior t o t hei ns t allat ion of a new module/component . Clear any s tored DTC's and ret estA5: POWER CONSUMPT ION
• NOTE: The s eat heat er power s uppl y cycl es on and off dependant on t he s eat and cabin t emperat ure and may onl ys wit ch on for 5 s econds in 30 secondsReconnect the connect or
Operat e t he vehi cl e air condit ioning on full for 10 minutes to reduce t he i n vehi cl e ambi entt emperatureRefer t o t he electrical ci rcuit diagrams and check t he s eat heater mat ( heat er ci rcuit ) us ing acurrent clampOperat e t he s eat heater on full power
Us e t he chart above t o calculat e t ypi cal value (V/R=I) (Volts di vi ded by Resistance equals Currentin Amps)Examples (12 vol ts / 0.5 ohms =24 amps ) (12 volt s / 1 ohms = 12 amps ) (12 volt s / 2 ohms = 6amps )
Does the seat heater mat consume the correct level of current ?YesClear any s tored DTC's and retes t. If operati on correct, no furt her act ion requi redNoGO to A6.A6: RESIST ANCE CHECK