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Va l ve potentiometer resistance Track = 1200  Ω ± 20 %
Slider = < 1050 Ω
Idling regulator resistance at 25°C= 53 Ω ± 10%
Ignition coil resistance Primary= 0.5 Ω ± 5 %
Se condary = 7200 Ω ±  10 %
Injector ’s resistance at – 40°C= 11.1 Ω
at 20C = 14.5 Ω ±  5%
at 120°C =20.6 Ω
Se nsor atmospheric pressure r esistance =50 kΩ
Upstream oxygen sensor heating resistance
For engines E7J-260-MA and E7 J-262 MB at 23°C = 6 ± 1Ω
Downstream oxygen sensor heating resistance for engines
E7J-260-MB, E7J-262-MB or  upstream
for engine E7J-262-MB at 23°C= 3.3 
+0.7  Ω
RPM  sensor resistance at 23°C = 200 -  270 Ω
C anister purging valve resistance at 23°C = 26 Ω  ±  7 %
Te m perature ( °C ) -40 -10 25 50 80 110 120
Air tempe ratur e se nsor 50000 9500 2051 810 309 135 105
Resist ance (ohms) ± 14 % ± 10 % ± 6 % ± 6 % ± 6 % ± 6 % ± 7 %
Water temperature  sensor 75780 12460 2252 811 282 115 88
Resist ance (ohms) ± 9 % ± 9 % ± 5 % ± 5 % ± 3 % ± 2 % ± 2 %
Ignition system checking:
C heck the condition, insulation and continuity of the high voltage cables.
R eplace them if necessary.
C heck the condition and correct tightening of the ignition spark plugs and if the spark plugs are corresponding
with the recommended ones.
R eplace them if necessary.
C heck the  condition of the ignition coil connectors.
Replace if necessa ry.
C heck the  condition and the primary and secondary resistance values of the ignition coil.
R eplace if necessary
C heck the  coils supply:
Pr esence of the +12 volts supply (contact set on).
C heck the  ele ctric routing between the coil and the  actuators relay.
M end if necessary.
Diagnostic – Help
-0. 3
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RECOMMEND AT IONS The values show n on this conformity checking are only as indication.
Performing conditions : St opped engine, contact set on.
Sequence Function Parameter / Controlled state or acti on Visualization Diagnostic
and Observations
1V oltage ET001 : after contact computer In case  of a
PR004 : computer supplying voltage ACTIV Eproblem
c onsult
th e PR004
dia gnostic
LC012 : O2 sensor option reading  With one wire or three wires
LC017 : Engine fan  driving with running engine With (if the option
 is  existing)
LC019 : upstream oxygen sensor With
LC020 : downstream oxygen sensor With (if the option  is  existing)
2  Comp uter LC036 : low flow fuel pump configuration With (if the option Nothing to
 is  existing) be noticed
LC042 : AC cold loop at injection With (if the option  is  existing)
LC048 : climate control configuration reading With (if the option  is  existing)
LC054 : Gearbox type Mechanical  gearbox
LC096 :  Compres sor with fix cy linder capaci ty   With (if the  option
 is  existing)
Diagnostic – Conformity checking
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Diagnostic – Conformity checking
RECOMMEND AT IONS The values show n on this conformity checking are only as indication.
Performing conditions : St opped engine, contact set on.
Sequence Function Parameter / Controlled state or acti on Visualization Diagnostic
and Observations
3 Anti-starting ET002 : Anti starting PASSIVE In case  of a
problemc onsult
t he DF004
  diagnostic.
4V alve position Acceleration  pedal release d.
potentiometer ET003 : valve pos ition for released pedal. Yes
PR 017 : measured valve pos ition.0 < x < 47
PR008 :  position memorized  vale for released  pedal. 0 < x < 47
Acceleration pedal slightly pressed. In case  of a
ET003 : released pedal valve pos ition.NOproblem
ET005 : valve position at maximum accelera tion NO c onsult
Acceleration pedal fully pressed. the DF017
ET003 : valve pos ition for released pedal. NO  diagnostic.
ET005 : valve position at maximum accelera tion. YES
PR 017 : measured valve pos ition. 170 <  x < 255
5Water In case  of a
tem perature PR002 : water temperature X= engine  problem
se nsor  temperature ± 5°C consult  the
PR002
dia gnostic
6Air In case  of a
tem perature PR003 : air temperature X = under bonnet problem
se nsor temperature ± 5°C  consult
the  PR003
dia gnostic
7P ressure PR016 : atmospheric pressure X = atmospheric In case  of a
trans duc e r  pressure problem
PR001 : manifold pressure X = atmospheric c onsult
pressur e the  PR001
dia gnostic
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Diagnostic – Conformity checking
RECOMMEND AT IONS The values show n on this conformity checking are only as indication.
Performing conditions : St opped engine, contact set on.
Sequence Function Parameter / Controlled state or acti on Visualization       Diagnostic
and Observations
8F uel pump  AC010 : Fuel pump relay The fuel pump In case  of a
must  be heard problem
running  consult  the AC010
dia gnostic
AC271 : low speed engine blower relay The engine
9 Engine blower must
blower be heard In case  of a
running with problem low speed  consult the
AC272 : high speed engine blower relay The engine ET035
 (if equipped) blower must(ET036)
be heard running dia gnostic with high speed
10 Idling AC014 : idling regulator Place your hand In case  of a
regulator under it to feel problem
it running. c onsult
the ET 039
dia gnostic
11 Canister AC016 : canister purging valve Canister purging In case  of a
purging valve  valve  in operation problem
consult the ET032
dia gnostic
12 Climate AC003 : Climate control compressor Compressor In case  of a
 control must couple problem
consult theET070
dia gnostic
13 Indicators AC212 : water temperature indicator Indicator In case  of a
must  be on problem
AC213 : OBD indicator Indicator consult  the
must  be on AC212
AC 005 : rate changing indicator (if equippe d) Indicator / DF120
must  be on  (ET092)
diagnostic /
             diagnostics
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Diagnostic – Conformity checking
Sequence Function Parameter/Controlled s tate or action Visualization Diagnostic
and Observations
1B attery ET001 : +after contact computer ACTIV EIn case of a problem
volta ge PR004 : computer supply voltage 13 < X < 14.5V consult the PR004 If PR004 = X< 12.8 V dia gnostic
Then PR006 : engine regi me750 < X < 910 rpm
2F uel pump ET020 : Fuel pump relay control ACTIV EIn case of a problem
control consult the AC010
dia gnostic
3A ctua tor ET025 “ Actuators relay control ACTIV EIn case of a problem
control consult the DF009
dia gnostic
4R PM signal ET060 : RPM signal to running eng ineACTIVEIn  case of a problem
consult the DF017 dia gnostic
5 No1 cylinder ET014 : No.1 cylinder recognition PERFORMED Nothing to be
recognition  (only if ET011 Active) notic e d
6 Oxygen ET030 : Upstream O2 sensor heating ACTIV ECheck operation
se nsor c onditions
he a ting ET031 : Downstream O2 sensor ACTIV E
heating  (if present)
7V alve ET003 : valve pos ition at released YES In case of a problem
potentiometer pedal consult the DF017
dia gnostic
8I dling ET039 : Idling adjustment ACTIVE
adjustment PR006 : Engine regime 750 < X < 775 rpm In case of a problem
PR041 : Idling regime indication = PR 006 
± 25 rp m consult the
 ET039 diagnostic
PR022 : RCO idling Values specified in chapte r :
“Adaptive correction of the idling regime”
9P ressure PR001: Manifold pressure 250 < X < 500  mb  In case of a problem
circuit PR016 : Atmospheric pressure X = Atmospheric consult  the
pressur e     PR001 diagnostic
RECOMMENDAT IONS The values show n on this conformity checking are only as indication.
Performing conditions :  Warm engine at idling and no consumers.
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Diagnostic – Conformity checking
Sequence Function Parameter/Controlled s tate or action Visualization Diagnostic
and Observations
In case of a problem
10 Anti-detonationPR013 : Detonation average signal 20 < X < 1 00 consult the
circuit PR0013 diagnostic
ET037 : Enriching adjustment ACTIV E
11 Enriching In case of a problem
adjustment PR009 : Upstream O2 sensor voltage 20 < X <84 0 mV consult  the
 ET037 diagnostic
PR 035 : Enriching correction value 0 < X < 255 Average value 128
Cl imate contro ET009 : Climate control request ACTIV E
(controlled AC) If injection is authorizing thecompressorcoupling
ET070 : Climate control compressor ACTIV E
If injection is
authorizing the compressorcoupling
In case of a problem
consult the  ET00,
ET070 and DF1 18
According to E035 : fan low speed ACTIV Ediagnostic or  chapter
conditions and Fan must “Injection/CA
requests of the run at low str a tegy” injection speed
computer,
12 w a t e r temperature,
electric If state
consumption, ET038 : accelerated idling ACTIV E
refrigerant fluidThen parameter  pressure PR006 : Engine regime 850 < X < 960  rpm
If type  Info PA 300
complete or coldP R044 : Absorbed power by AC ( X<300W if the
l oop present in compressor injection is not
injection authorizing the
the compressor
coupling)
If type  cold PR027 : Refrigerant fluid pressure
l oop in injection 2< X < 6 bar
RECOMMEND
AT IONS The values show n on this conformity checking are only as indication.
Performing conditions :  Warm engine at idling and no consumers.
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Diagnostic – Conformity checking
Sequence Function Parameter/Controlled  state or actio nVis ualizationDiagnostic
and Observations
 Engine ET035 : Low speed engine fan PASSIVE Fan PR002 : Water temperature Engine fan must run when engine
water temperature is  exceeding 99°C In case of a problem
consult the ET035
13 ET036 : High speed engine fan ACTIV E(ET036) diagnostic
(if equipped with AC).
PR002 : Water temperature Engine fan must run when engine watertem perature  is
exceeding 102 ° C
RECOMMEND
AT IONS The values show n on this conformity checking are only as indication.
Performing conditions : Warm engine at idling and no consumers.
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ET035LOW SPEED ENGINE FAN
RECOMMEND AT IONS No failure on the water temperature sensor circuit must be present in
order to perform this diagnostic.
 Check:
- engine fan condition
- engine fan resistance condition
- condition f the engine fan mass connection
-l ow speed engine fan supply
-s upply line between engine fan and engine  fan relay
 M end if necessary.
C heck the connection and condition of the connector of the low speed engine fan relay
Re place the connector  if necessary.
Rem ove the rela y of the  low spe ed engine fan
C heck, with the contact set on, the supply presence +12 volts at pole 1 of the rela y.
M end if necessary.
Measure the relay coil resistance.
Re place the rela y of the low spe ed engine fan, if necessary.
 Connect the 90 ways terminal box instead of the computer and check the in su la t i on, continuity and
absence of the parasite resistance on the connection between: Pin 8 injection computer       >   Relay of the low speed engine fan
M end if necessary.
Diagnostic – States interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
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