light DACIA SOLENZA 2004 Repair Manual

16ENGINE E7J-262
16 - 1
ALTERNATOR – STARTER
IDENTIFICATION
ENGINE ALTERNATOR INTENSITY
VALEO A11 VI 87 75A
E7J - 262
VALEO A13 VI 212 80A
CHECKING
After 15 minutes of heating under a 13.5 V tension.
ENGINE RPM ALTERNATOR 75 AALTERNATOR 8 0A
(rot/min) (A)(A)
10004654
2000 6875
3000 7180
4000 7282
OPERATION / DIAGNOSTIC
These vehicles are equipped with alternators with internal ventilation, incorporated voltage
regulator, and charging indicator on the instrument panel, which must operate as follows:
-w hen the contact is set on, the indicator is on;
-af ter engine starting, the indicator is off;
-i f indicator goes on during engine running, then it shows a charging failure.
INCIDENTS SEEKING
A. The indicator is not lighting when setting the contact on
Check : -the electric connections must be well done;
- the indicator bulb is not worn (when the circuit is mass connected, the bulb must be on).
Alternator
vnx.su

ENGINE E7J-26216
16 - 2
ALTERNATOR – STARTER
B. The indicator is lighting, engine being running.
This shows a charging failure, which may be caused by:
- alternator driving belt broken, charging wire connected to alternator is broken (+ per-
manent);
-alternator failure(rotor, stator, diodes or brushes);
- voltage regulator failure;
- an over voltage.
C. Client is claiming a charging defect, but the luminous indicator is correctly oper-
ating.
If the adjusted voltage is smaller than 13.5 V, check the alternator.
The defect may be caused by : -worn diode;
-b roken phase;
- collector wear or coal dust.
VOLTAGE CHECKING
Connect a voltmeter to the battery plugs and read its voltage value.
Start the engine and speed the e ngine till the voltmeter needle i s set on the adjusted voltage.
This voltage must be between 13.5 V and 14.8 V
Connect maximum of consumers; the voltage must still between 13.5 V and 14.8 V.
AT T E N T I O N !
In case electric arch welding is performed on vehicle obligatory disconnect the bat-
tery and the voltage controller (alternator).
Alternator
vnx.su

IGNITION AND INJECTION
17
17 - 8
Injection system
WATER TEMPERATURE SENSOR
The water temperature sensor ( 1) is sending to UCE injection the information regarding water tempera-
tu re, and another information is sent to the indicator from the instrument panel, which will show the water
tem perature.
In case of an alert regarding the water temperature, UCE injection will control the lightening of
the water temperature indicator from the instrument panel.
Subject to water temperature, UCE injection will control:
- injection system;
- relays for controlling the engine cooling fan.
When setting the contact on, the water temperature indicator located on the instrument panel,
will be lighted for 3 seconds, then it will turn off.
1
1
If after the contact is set off, in the next 2 minutes from engine stopping, the water temperature
is reaching 102 °C, and t hen the injection computer i s control ling t he starting of the e ngine
cooling fan at low speed. When the temperature is lowering at 95°C, the engine cooling fan stopping will be controlled;
its operation must not exceed 10 minutes after engine stopping.
vnx.su

IGNITION AND INJECTION
17
17 - 9
ANTI-STARTING INDICATOR
When setting the contact on, UCE injection is receiving from UCE DECODER a code, whi
ch is compared
with the one previously memorized; if the two codes are matching, then the engine starting is author ized.
After contact setting on, anti-starting indicator which was previously blinking, will light for
three seconds then it will go off, confirming in this way, the key recognizing.
If the key is not good, after setting on the contact, the anti-starting indicator will start blinking
faster and the engine starting will be impossible.
OBSERVATION:
For details regarding the vehicle anti-starting system, see chapter 82 “Anti-starting system”.
AT T E N T I ON!
U CE injection c onnecting or disconnecting to t he vehicle’s wiring i s to be pe rformed
Injection system
only when the engine is stopped and t he contact off.
If the contact is on or the engine is running, do not loosen or disconnect the battery
terminal s. It is forbidden the battery replacement on t he vehicle i f the engine is running
or the contact on. Loosen or rusty contacts at battery terminals and imperfect connections at the
injection system wiring are not allowed. It is forbidden the engine starting with the battery connected to a charging / starting
unit. The battery recharging is t o be pe rformed only aft er disconnecting it from the vehicle
wiring and by means of a c harging unit with 12 V v oltage.
vnx.su

IGNITION AND INJECTION
17
17 - 10
MU LTI-POINT INJE CT ION CHARACT E RISTICS
〈 SIRIUS 32 with 90 pins computer is managing the ignition and the injection.
〈 For diagnostic, CLIP Sagem tester is to be used.
〈 The injection system in use is a sequential multi-point type, injection and ignition phases
controlling being based on the SIRIUS 32 computer program logic, starting from the signal received
from the RPM sensor.
〈The pr esence of the anti-pollution indicator OBD on the instrument panel, that is lighted for
3 seconds when setting the contact on, is specific to the vehicles observing pollution norms EURO
2000. The injection computer of these vehicles is provided with diagnostic system type OBD (“ On
Board Diagnostic).
〈 Idling regime correction is subject to:
-c limate maintenance on/off control (air conditioning)
-e lectrical balance on vehicle, as a result of connecting different electric consumers.
〈 EURO 2000 specific vehicles are provided with two oxygen sensors located in front of the
cata lyst (upstream oxygen sensor) and after catalyst (downstream oxygen sensor).
〈 At EURO 2000 specific vehicles, the fuel supply is performed at constant pressure (3.5 ±
0.2 bar), the pressure controller placed in the fuel tank being provided for this purpose.
Chara cteristics
vnx.su

IGNITION AND INJECTION
17
17 - 18
At vehicles equipped with diagnostic system OBD (On Board Diagnostic), when detecting a
caus e leading to an excessive pollution, on the instrument panel the OBD indicator will be on,
indicating to the driver that vehicle must be repaired to eliminate the pollution cause.
The OB D system is taking into consideration during its operation of the performing the follow-
ing diagnostics: -electric diagnostics;
-c ombustion misfires diagnostics
-f unc tional diagnostic of the upstream oxygen sensor;
-c atalyst diagnostic.
El ectric and combustion misfires diagnostics are permanently performed.
Functional diagnostic of the upstream oxygen sensor and catalyst diagnostic are performed one
time only during one driving, subject to reaching the imposed values of the following parameters, in
or der to a.m. diagnostics commencement:
-water /air temperature conditions;
-v ehicle speed condition (evaluation field);
-e ngine parameters conditions (inlet manifold pressure, values fields and stability);
- starting timer.
OBD information management is completing classical electric failures management.
In orde r to meet this requirement, it is obligatory the OBD operation as per following way:
- lighting (or blinking for some failures) of the OBD indicator;
-memoriz ing of the OBD failures by UCE injection.
EFFEC TS ON DIAGNOSTIC AND REPARATIONS
During reparation of vehicles equipped with OBD system, a special attention will be given to
a void the OB D indicator lighting after reparations performing and returning the vehicle to the end-
user.
Certain failures can be noticed only during driving, this being the moment when the adaptive
values ar e ”learned ”, so: The reparation validation is obligatory imposed .
REMARK: all electric failures leading to pollution limit exceeding, will produce the OBD
indicator lighting.
ATTENTION: after each test performing, the contact setting on is imposed (key in M
position) before reading the res ults by means of the C LIP tester. Any contact sett ing off
be fore reading the test results, will lead to their wrong interpretation.
“On Board D iagnostic” system c haracteristics
vnx.su

IGNITION AND INJECTION
17
17 - 19
CONDITIONS OF OBD INDI CATOR L IGHTING
During driving it is possible that certain functions are not subject to diagnostic (for instance due
to crowded traffic driving).
Indicator lighting -it is occurring if the same OBD failure is detected during three consecutive driving or
fu rther to an electric failure.
Indicator blinking -it is occurring if combustion misfires are detected, that may cause the catalyst damage.
Indicator off
- it is occurring if the OBD failure is not happening during three consecutive driving, but the
fa ilure in cause will remain memorized by the UCE injection.
In orde r to cancel the failures memorized by the UCE injection, failures must not be detected
du ring 40 consecutive tests (or to perform the erasing of the memorized failures, by means of the
CLIP te st er).
O BSERVATION : if a previously detected failure has been not detected again, then the cause
may be: -driving type performed by the end-user, not driving exactly in the conditions imposed for
fa ilure detection;
-rando m character (non-permanent) of the respective failure.
“On Board Diagnostic” lighting conditions
vnx.su

IGNITION AND INJECTION
17
17 - 20
DIAGNOSTIC CONDI T IONS
If wh en setting on the contact, with stopped engine, one of the following conditions is accom-
plished: -air temperature, red by the air temperature sensor, is not situated between –6° and 119°C.
-w ater temperature, red by the water temperature sensor, is not situated between –6° and
119°C.
-atmosphe ric pressure is under 775mbar,
then the OBD diagnostics are not authorized until the next contact setting on. In order to have a correct operation of the OBD diagnostic system, no electric failure of the
injection system must exist, even if the lighting of the OBD indicator is not established. The catalyst and oxygen sensor diagnostics can not be performed in the same time, but one
after other.
When the catalyst or oxygen sensor diagnostics are under operation, the canister purging valve
is closed, and the adaptive values are “blocked” at the last existent value prior to a.m. diagnostics
starting. TESTS PERFORMING LOGIC
-Solve fa ilures of electric nature.
-Erase a ll failures by means of the CLIP tester
-Perform the “teaching” stage of all adaptive values by the injection system (if necessary).
OB D COMPLETE ACTIVATION BY MEANS OF CLIP TESTER
-Erase all memorized failures.
-Erase the “learned” values from UCE injection if further to an intervention on an injection
system component, a disturbance of the “learned” values took place (step-by-step engine, flywheel
or RPM sensor, etc).
RETENTIONS (“LEARNINGS”) NECESSARY FOR UCEINJECT ION FOR OBD DI AGNOSTIC
〈 COUPLING/SUPPLY RATE LEARNING (state “ET014 = cylinder recognition 1” is PER-
FORMED with running engine). This is to be performed as following:
-a deceleration with “cutting” of the petrol injection in the third gear of the gearbox, be-
tween 3000-3500 rot/min for at least 2 seconds,
-a second deceleration with ”cutting” of the petrol injection in the third gear of the gearbox,
between 2400-2000 rot/min, for at least 2 seconds.
〈 MIXTURE ENRI CHING ADAPTIVE LEARNING
In order to do that, it is necessary that vehicle is running observing in the same time the pressure
ranges men tioned in the chapter “ Enriching adaptive correction”.
〈 State “ET202 = OBD diagnostic of combustion misfires taken into consideration” must be
AC TIVE.
“On Board Diagnostic” diagnostic conditions
vnx.su

IGNITION AND INJECTION
17
17 - 21
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
vnx.su

IGNITION AND INJECTION
17
17 - 25
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.
vnx.su