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DF 061
P RESENT
OR
ME MO RIZEDCYLINDERS 1-4 IGNITION COIL CIRCUIT
1.DEF : Open circuit or short-circuit
CO : Open circuit
CC. O : Short-circuit at mass
CC.1 : S hort-circuit at +12 volts
Conditions for diagnostic appl ication to memorized failure:
Start t he e ngine a nd stop it immediately as the failure is oc curring as being
prese nt (risk for catalyst) or rota te de engine with the starter, without starting it,
for 10 seconds.
In case of failures addition, treat as most important, failure “ DF345 : Supply 5
volts potenti ometers or sensors “ and failure “DF261: Fuel pump relay circui t”,
if it is /they are present
* If the failure is memorized with OBD indicator on, check in the context part, if
st ate “ET282 : Ignition coil 1-4 circuit” corresponding to the OBD indicator
lighting request is affirmative. In this case , proceed as per bellow mentioned
met hod
C heck the connection and condition of the coil connector .
R eplace the connector if necessary.
C heck the resistance of the coil resistance of c ylinders 1-4. Refer to chapte r
“Help” in order to compare the measured resistance values with the recommended
one .
R eplace the coil if necessary.
Check the +12 Volts supply existence after fue l pump relay, at pin C of the coi l.
If it is necessary, apply the methodology for failure diagnostic “DF261”
C onnect the 90 ways terminal box instead of the injection computer the n check
t he insulation and continuity on line:
pin 32 injection computer > pin A ignition coil.
Fi x if necessary.
If the problem is persisting after the se checking, treat the other failures then
perform the conformity checking.
RECOMMENDATIONS
Pe rform the operations from ” recommendations” for reparation confirma tion.
Fi x any other possible failures
Erase the failures memoriz ed by the injection computer.
Pe rform a conformity checking by means of the CLIP tester.
AF
TER
REPARATION
Diagnostic – Failures interpretation
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Diagnostic – Failures interpretation
DF 062
P RESENT
OR
ME MO RIZED CYLINDERS 2-3 IGNITION COIL CIRCUIT
1.DEF : Open circuit or short-circuit
CO : Open circuit
CC. O : Short-circuit at mass
CC.1 : S hort-circuit at +12 volts
Conditions for diagnostic appl ication to memorized failure:
Start t he engine a nd stop it immediately as the failure is occurring as be ing
prese nt (risk for catalyst) or rota te de engine with the starter, without starting
it, for 10 seconds.
In case of failures addition, treat as most important, failure “ DF345 : Supply 5
volts potentiometers or sensors “ and f ailure “DF261: Fuel pump relay
circuit ”, if it is /they are present.
* If the failure is memorized with OBD indicator on, check in the context part, if
st ate “ET283 : Ignition coil 2-3 circuit” corresponding to the OBD indicator
lighting request is affirmative. In this case , proceed as per bellow me ntioned
met hod.
C heck the connection and condition of the coil connector .
R eplace the connector if necessary.
C heck the resistance of the coil resistance of c ylinders 2 and 3. Refer to
chapte r “ Help” in order to compare the measured resistance values with the
recommended one.
R eplace the coil if necessary.
Check the +12 Volts supply existence after fuel pump relay, at pin C of the
coil.
If it is necessary, apply the methodology for failure diagnostic “DF261”.
C onnect the 90 ways terminal box instead of the injection computer then check
t he insulation and continuity on line:
pin 1 injection computer > pin B ignition coil.
Fix if necessary..
If the problem is persisting after these checking, treat the other failures then
perform the conformity checking.
RECOMMENDATIONS
Pe rform the operations from ” recommendations” for reparation confirma tion.
Fi x any other possible failures.
Erase the failures memoriz ed by the injection computer.
Pe rform a conformity checking by means of the CLIP tester.
AF
TER
REPARATION
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RECOMMENDATIONS
Diagnostic – Failures interpretation
DF 109
DF 110
P RESENT
OR
ME MO RIZEDPOLLUTED COMBUSTION MISFIRE
DESTRUCTIVE COMBUSTION MISFIRE
St ate ET014 : Recognition of the cylinder 1 must be active, in order to
i dentify each cylinder.
ET093 : combustion misfire on cylinder 1
ET094 : combustion misfire on cylinder 2
ET095 : combustion misfire on cylinder 3
ET096 : combustion misfire on cylinder 4
These w ill provide information regarding failure cause and location.
In this situation, the problem is probably due to an element that can act
only on one cylinder:
- Problem at injector
A cylinder is declared - Problem at spark plug
damaged : ET093 or ET094 - Problem at high voltage cable.
or ET095 or ET096. Before replacement, try the spark plug or cable changing to anothe r
cylinder.
Cy linders 1 and 4 or In this cylinders 2 and 3 declared situation, the proble m is probably
damaged : ET093 and ET 0 96 due to an eleme nt that can act only this pair of cylinders:
or ET094 and ET095. - Problem at ignition coil, at the high voltage part. - Problem at ignition coil, at the control part
In this situation, the problem is probably due to an element tha t can
F our cylinders declared act only on all cylinders:
damaged : ET093 and -Problem at fuel filter
ET094 or ET095 and ET096. -Problem at fuel pump
-Problem on in use fuel type
-Problem of in use spark plugs
In case by using this method the problem is not solved, cons ult the fail ures diagnostic DF109 / DF
1 10 CONTINUA TION
Ensure that all failures are solved. Erase all memorized failures.
There is no need to erase the “adaptive values” memoriz ed by the injection computer.
In order to check the correct reparation of the system, the following conditions must be
AF TER accomplished:
REPARATION - No more electrical failures;
- All “adaptive values” to be memorized by the injection computer;
- Warm engine (minimum 75°C);
- Run at idling, all consumers being in use for 20 minutes (1 minute DF110);
- If the failure is again occurring, repeat the dia gnostic.
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Diagnostic – Failures interpretation
DF 109
DF 110
CONTINU AT I O N
ET093 : combustion misfire on cylinder 1
ET094 : combustion misfire on cylinder 2
RE COMMENDATIONSET0 95 : combustion misfire on cylinder 3
ET096 : combustion misfire on cylinder 4
These w ill provide information regarding failure cause and location.
C heck the ignition system ( refer to chapter “Help” ).
Fix it if necessary.
C heck the engine compression.
Fix it if necessary.
C heck the flywheel condition , in order to get a correct information of the engine RPM.
Fix it if necessary.
If no failure has been found, there is a problem on the fuel supply cir cuit.
In this situation the following must be checked:
- Fuel filter
-F uel pressure and flow
-F uel pump condition
-F uel tank cleaning condition]
-I njector s conditions
Mend the fuel supply circuit.
Ensure that all failures are solved. Erase the memorized failures.
There is no need to erase the “adaptive values” memorized by the injection
computer. In order to check the correct reparation of the system, the following
conditions must be accomplished:
AF TER - No more electrical failures.
REPARATION - All “adaptive values” to be memor ized by the injection computer.
- Warm engine (minimum 75°C)
- Run at idling, all consumers being in use for 20 minutes (1 minute
DF110).
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Diagnostic – Failures interpretation
DF 261 FUEL PUMP RELAY CIRCUIT
P RESENT 1. DEF Supply failure + after relay
OR 2. DEF Open circuit or short-circuit
ME MO RIZED
If failure “DF345 : Supply 5 volts potentiometers and sensor s” is
present or memori zed, it must be treated as most important .
Conditions for diagnostic appl ication at memorized failure:
Se t the contact on, then enter in dia logue with the computer
Or activation of the actua tor control “ AC 010 : Fuel pump relay”.
RECOMMEND ATIONS REMARK : This failure is most important. So it must be treated before
t he next ones.
* If the failure is memorized with OBD indicator on, check in the context
part, if state “ET241 : Fuel pump control cir cuit” corresponding to the
OBD indicator lighting request is affir mative. In this case , proceed as
per bellow mentioned method
1. DEF RECOM MENDAT IONS It is a failure on the power circuit of the fuel
pump relay.
C heck the electric continuity f the idleness contact.
Me nd if necessary.
C heck the connection and con dition of the fuel pump relay connector .
R eplace the connector if necessary.
C heck the presence of the +12 volts supply at pole 3 of the fuel pump relay
Me nd if necessary.
C heck with the contact set on a nd acting the actuator c ontrol “AC010 : Fuel pump relay”, the
prese nce of +12 V supply at pole 5 of the fuel pump relay.
R eplace the relay if necessa ry
C heck the insu lation and cont inuity of the connections between:
Pole 5 fuel pump relay > pi n C ignition coil
Pole 5 fuel pump relay > fuel pump
Me nd if necessary.
If the problem is persisting after these checking, treat the other failures then perform the
conformity checking.
Perform the operations from ” recommendations” for reparation confirma tion.
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
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DF 261
CONTINU AT I O N
2. DEF RECOM MENDAT IONS It is a failure on the power circuit of the fuel
pump relay.
C heck the connection and condition of the fuel pump relay connector .
R eplace the connector if necessary.
Check, with the contact set non, the pr e sence of the +12 volts supply at pole 1 of the fuel pump
relay.
M end if necessary.
C heck the fuel pump rela y coil.
R eplace the fuel pump rela y if necessary.
Check the insu lation and continuity of the line:
Pin 68 injection computer > pole 2 fuel pump relay
M end if necessary.
If the problem is persisting after these checking, treat the other failures then perform the conformity
checking.
P erform the operations from ” recommendations” for reparation confirma tion.
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
Diagnostic – Failures interpretation
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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
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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