2004 DACIA SOLENZA light

IGNITION AND INJECTION
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This diagnostic may detect:
-spark plug fouling or smoking,
-fou ling or modification from the normal value of the injectors flow,
-f uel supply system abnormalities (pressure controller, fuel pump,..)
-pr oblems with the electric connections for controlling fuel supply circuits and the injection.
Th e di ag nostic is performed by variations measurement of the engine prompt rotation speed.
Notice of a couple decrease is allowing the defective combustion recognition as failure cause.
Th is diagnostic is done almost permanently during driving. Non accomplishment of the diagnos-
tic or recognition of the existence of failure, is leading to other OBD diagnostics inhibition. This diagnostic is enabling the identification of two types of failures:
-de structive combustion misfires, which are causing the catalyst damage. These are gener-
ating the immediate blinking of the OBD indicator. -Polluting combustion misfires, leading to e xceeding a pre-established OBD pollution limit.
These ar e generating the permanent lighting of the OBD indicator, if the cause detection is
taken place during three consecutive running.
DE T ECT ION CONDITIONS
At the beginning, it must be checked if the “learning” stages of the adaptive values by the UCE
injection have been correctly performed. Also the preliminary conditions imposed when setting the
co ntact on and those from checking moment, must be accomplished.
Check by means of the CLIP tester if the bellow mentioned states are in the following configu-
ration:
ET0 14 Cylinder 1 recognition----------------------------------------------------------------- DONE
ET2 02 OBD diagnostic of combustion misfires taken into consideration--------------AC TIVE
Detection is accomplished after the water temperature is exceeding 75°C, at three rotation
steps, between idling and 4500 rot/min. It is also possible, test performing by maintaining the engine
at idling for a period of time of 11 minutes.
ATTENTION: after performing this test, the contact set ting on is imposed (key in M
position) before reading the r esults by means of the CLI P t ester. Any contact set ting off
be fore reading the test results, will lead to their wrong interpretation.
If after test performing, the CLIP tester is noticing the presence of the combustion mis-
f ires, refer to the diagnostic method related to this symptom.
CONFIRM ATION OF THE RE PARATION PE RFORM ING
-Check by m eans of the CLIP tester, the bellow states, which must have the following
c onfiguration:
ET0 14 Cylinder 1 recognition -------------------------------------------------------------------- DONE
ET2 02 OBD diagnostic of combustion misfires taken into consideration ----------------- AC TIVE
-N o failures is detected by the CLIP tester, and the OBD indicator must be off.
Diagnostic of combustion misfires detection
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IGNITION AND INJECTION
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Diagnostic – General
This document is presenting the diagnostic for the injection computers SIRIUS 32, which have
nr.program E1 and Diag.variant 10.
In order to perform the diagnostic of this injection system, it is necessary to use the following
elem ents:
-D iagnostic Technical Note
-F unctional electric diagram of the respective vehicle
-CLIP technic al tester, 90 ways terminal (ELE 1497).
DIAGNOSTIC PE RFORMING STEPS
- CLIP tester connection to the diagnostic socket for identification of the SIRIUS 32 computer
type, of the “E1” program and the diagnostic variant “10”.
- Informati on identification in the document “Diagnostic” corresponding to the injection system.
- Reading and observing of the working instructions presented in the diagnostic documentation.
- Reading of the failures memorized by the injection computer, by means of the CLIP tester and
caus es identification by means of chapter “ Failures interpretation”
DO NOT ERASE T HE MEMORIZED FAILURES BEFORE RE ADING THEM BY MEANS OF THE CLIP TESTER
Write the memorized failures, after having previously red by means of the CLIP tester, in order
to be taken into consideration and treated, if these are to be themselves erased.
1. Treat all existent failures.
2. Memorized failures:
Perform the operations mentioned in “Recommendations” corresponding to each failure, in order
to confirm the failure.
If the failure is becoming present, then it must be treated.
3. For vehicle provided with OBD.
If the failure is memorized and the OBD indicator is on, read the failure context remarks, the
co rres po nding state at” OBD indicator lighting requesting”, in order to establish if this is the cause
for i ndicator lighting.
In such case, treat the failure as being present.
REMARK : the state “ OBD indicator lighting requesting” may be YES or NO and may be
co nsulted by selecting menu “ FUNCTIONS”, then OBD INDICATOR LIGHTING”.
Perform the conformity checking (evidencing of eventually disturbances not yet declared by the
system self-diagnostic). Validate the reparation performing (failure cause elimination).
Take benefit of the information from the failure-locating tree, in case the problem is persisting.
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IGNITION AND INJECTION
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DF002
P RESENT
OR
MEMORIZEDVALVE POTENTIOMETER CIRCUIT
1. DEF : Open circuit or short-circuit
AF TER
REPARATION Perform the operations from “recommendations” for reparat
ion confirmation.
Fix a ny other possible failures.
Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
RE COMMENDATIONS
If failure “DF345 : Supply 5 volts potentiometers or trans ducers” is present
or memorized, this must be treated with priority.
Conditions for diagnostic appl ication for memorized failure:
- Set the contact on and maintain it like this for 10 seconds in the rele ased
pedal position.
- Easy alter the potentiometer valve position, from released pedal to maximum
acceleration.
- Maintain the pedal in the maximum pressed pos ition for 10 seconds.
(The failure must pass to the pres ent state, but it may become again memorized
imm ediately after finishing performing the previous operations).
* If the failure is memorized with OBD indicator on, check in the context part,
if state “ET284 : Valve potentiometer circuit” corresponding to the OBD
i ndicator lighting request is affirmative. In this case, proceed as per bellow
me ntioned method.
Check the connection and the state of the valve potentiometer connector.
R eplace its connector if necessary.
Pe rform measurement of the valve potentiometer resistance (resistance is zero or infinite in case of
sure failure).
C heck tha t potentiometer resistance is pr ogressively increasing, by acting upon the valve from
released acceleration pedal pos ition to the maximal accele ration pedal.
(Use chapter “Help” in order to compare the measured resistance values compared with
recommend ed ones).
Check if the valve is well acting the potentiometer.
M ake it working or replace the potentiometer if necessa ry.
C onnect the 90 w ays terminal box instead of the injection c omputer then c heck the insulation,
continuity and absence of the parasite resistance on lines: Pin 75 injection computer > pin A valve potenti ometer
Pin 74 injection computer > pin B valve potenti ometer
Pin 43 injection computer > pin C valve potenti ometer.
Fix if necessary
If the problem is persisting after these checking, use the fixing method for failure DF345.
Diagnostic – Failures interpretation
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IGNITION AND INJECTION
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DF003
P RESENT
OR
MEMORIZEDAIR TEMPERATURE SENSOR CIRCUIT
1. DEF : Open circuit or short-circuit
RECOMMENDATIONS
AF TER
REPARATION
C heck the connection and the state of the air temperature sensor connector.
R eplace the sensor ’s connector if necessary.
C heck that resistance of air temperature se nsor is not zero or infinite (sensor sur e failure).
(Use chapter “Help” in order to compare the measured resistance values compared with
recommend ed ones).
R eplace the air te mperature se nsor if necessary.
C onnect the 90 w ays terminal box instead of the injection c omputer then c heck the insulation,
continuity and absence of the parasite resistance on lines: Pin 77 injection computer > pin 1 air temperature sensor
Pin 49 injection computer > pin 2 air temperature sensor
Fix if necessary
C heck the correct evolution of the sensor resistance subject to ai r temperature.
R eplace the air te mperature se nsor if necessary.
If the problem is persisting after these checking, fix the other failures the n perform the conformity
checking.
Diagnostic – Failures interpretation
If failure “DF345 : Supply 5 volts potentiometers or transducers” is present
or memorized, this must be treated with priority.
C onditions for failure detection by the computer:
- Set the contact on
- If the failure is only memorized, st art the engine in order to obtain a temperature
variation ( an engine cooling fan starting).
(The failure must pass to the present state, but it may become again memorized
i mmediately after finishing performing the previous operations).
* If the failure is memorized with OBD indicator on, check in the context part,
if state “ET274 : Air tempe rature se nsor circuit” corresponding to the OBD
i ndicator lighting request is affirmative. In this case, proceed as per bellow
m entioned method.
Perform the operations from “recommendations” for reparation confirmation.
Fix a ny other possible failures.
Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
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IGNITION AND INJECTION
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Diagnostic – Failures interpretation
DF004
P RESENT
OR
MEMORIZEDWATER TEMPERATURE SENSOR CIRCUIT
1. DEF : Open circuit or short-circuit
RE CO MMENDATIONS
AFTER
REPARATION
C heck the connection and the state of the air tempe ratur e sensor connector.
Re place the connector if necessary.
C heck tha t resistance of wate r te mperatur e se nsor is not zero or infinite (sensor sur e failure).
Use chapter “Help” in order to compare the measured resistance values compared with
recommend ed ones).
Repl ace the wate r tempe ratur e se nsor if necessary.
C onnect the 90 w ays terminal box instead of the injection c omputer then c heck the insulation,
continuity and absence of the parasite resistance on lines: Pin 73 injection computer > pin B1 water temperature sensor
Pin 13 injection computer > pin B2 water temperature sensor
Fix if necessary
C heck the correct evolution of the sensor resistance subject to the temperature.
Repl ace the wate r tempe ratur e se nsor if necessary.
If the problem is persisting after these checking, fix the other failures the n perform the conformity
checking.
If failure “DF345 : Supply 5 volts potentiometers or transducers” is present
or memorized, this must be treated with priority.
Conditions for failure detection by the compu ter:
- Set the contact on
- If the failure is only memorized, st art the engine in order to obtain a temperature
variation (an engine cooling fan starting).
(The failure must pass to the present state, but i t may become again memorized
imme diately after finishing performing the previous operations).
* If the failure is memorized with OBD indicator on, check in the context part,
if state “ET275 : Water temperature sensor circuit” c orresponding to the
OBD indicator lighting request is affirma tive. In this case, proceed a s per
bellow mentioned method.
P erform the operations from “recommendations” for reparation confirmation.
Fix a ny other possible failures.
Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
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IGNITION AND INJECTION
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AFTER
REPARATION P
erform the operations from “recommendations” for reparation confirmation.
Fix a ny other possible failures.
Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
C heck the c onnection and the state of the de tonation sensor connector.
R eplace the sensor ’s connector if necessary.
C heck the tightening of the RPM sensor on the engine block
Fi x if necessary.
C onnect the 90 w ays terminal box instead of the injection c omputer then c heck the insulation,
continuity and absence of the parasite resistance on lines:
Pin 20 injection computer > p in 1 detonation sensor
Pin 79 injection computer > p in 2 detonation sensor
Pin 19 injection computer > RPM sensor sc reening
Fix if necessary
If the problem is persisting after these checking, fix the other failures the n perform the conformity
checking.
RE CO MMENDATIONS
Conditions for diagnostic application for memorized failure:
Perform a road test with warm and in charge engine.
* If the failure is memorized with OBD indicator on, check in the context part,
if state “ET289 : Detonation sensor cir cuit” corresponding to the OBD
i ndicator lighting request is affirmative. In this case , proceed as per bellow
m entioned method.
Diagnostic – Failures interpretation
DF006
P RESENT
OR
ME MO RIZEDDETONATION SENSOR CIRCUIT
1. DEF : Open circuit or short-circuit
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IGNITION AND INJECTION
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DF014
P RESENT
OR
ME MO RIZEDCANISTER PURGING VALVE CIRCUIT
1.DEF : Open circuit or short-circuit
CO : Open circuit
CC.O : S hot circuit at mass
CC. 1 : Short circuit at + 12 V.
RECO MMENDATIONS
Conditions for diagnostic appl ication for memorized failure:
Se t the contact on or launch commend “AC016: Canister Purging Valve”
In ca se of failures additi on, treat as most important failure “DF009 actuators
relay control circuit ”.
* If the failure is memorized with OBD indicator on, check in the context part,
if state “ET117 : Canister purging control” corresponding to the OBD i ndicator
lighting request is affirma tive. In this case, proceed as per bellow mentioned
met hod.
C heck the connection and the connector state of the can ister purging valve .
C hange the connector if necessary.
C heck the resistance of the canister purging valve.
Repl ace the canister purging valve if is necessary.
C heck with the contact on, the presence of +12 Volts at pin 1 of the purging valve .
Fi x if necessary.
C onnect the 90 ways terminal box instead of the injection computer the n check the in s u la t ion and
the continuity of the l ine:
Pin 4 injection computer > pin 2 canister purging valve
Fix if necessary
Repl ace the canister purging valve if necessary.
If the problem is persisting after these checking, fix the other failures then perform the conformity
checking.
AFT ER
REPARATION Pe
rform the operations from “recommendations” for reparation confirmation.
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.
Diagnostic – Failures interpretation
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IGNITION AND INJECTION
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RE CO MM ENDATIONS
In order to perform this diagnostic, the pressure sensor must be not in
failure.
Conditions for diagnostic appl ication for memorized failure :
Se t the contact off and wait until the communication computer-CLIP tester
is lost.
Set the contact on, enter in dialog with the computer and eras e the memorized
failures. Act upon the starter for 10 seconds or make the engine idle running.
* If the failure is memor ized with OBD indicator on, check in the conte xt
part, if sta te “ET276 : Engine flywheel tooting dama ge” corresponding to
t he OBD indicator lighting request is affirma tive. In this case, proceed as
per bellow mentioned method.
AF TER
REPARATION
RPM SIGNAL INFORMATION
1. DEF : Engine flywheel tooting damage
2. DEF: tooth signal abse nce
C heck the connection and the condition of the RPM sensor connector
R eplace the connector if necessary.
C heck the cleaning state and the correct attachment of the RPM sensor
Fi x if necessary.
C heck the resistance of the RPM sensor.
R eplace the RPM sensor if necessary.
C onnect the 90 ways terminal box instead of the injection computer then c heck the insulation,
continuity and absence of the parasite resistance on lines: Pin 54 injection computer > p in A RPM sensor
Pin 24 injection computer > pi n B RPM sensor
Fi x if necessary.
If 1. DEF is occurring, check the engine flywheel condition.
If the problem is persisting after these checking, fix the other failures then perform the conformity
checking.
Diagnostic – Failures interpretation
DF017
P RESENT
OR
ME MO RIZED
Che ck tha t state “ ET202: Dia gnostic OBD c ombustion misfires taken into
consideration”, is ACTIVE. Contrary, it is necessary, the re-act ivation of “learning”
t he RPM signal by the injection computer.
Fix the others possible failures and then perform the conformity checking.
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