2004 DACIA SOLENZA ABS

IGNITION AND INJECTION
17
17 - 44
DF 057
P RESENT
OR
ME MO RIZED
If failure “ DF345” : Supply 5 volts potentiometers or sensor s” is
prese nt or memoriz ed, this must be treate d as most important.
Conditions for diagnostic appl ication to memorized failure:
Se t the contact on.
St art the engine, ensur e tha t state “ET030: Upstream oxygen se nsor
he a ting” is ACTI VE a nd w a it tha t sta te “ ET037 : Enr ic hing
adjustment ” is ACTIVE, t hen wait for 5 minutes.
* If the failure is memorized with OBD indicator on, check in the
context part, if state “ET285 : Upstream oxygen sensor circuit” corre-
s ponding to the OBD indicator lighting request is affirma tive. In this
case , proceed as per bellow mentioned method.
RE COMMENDATIONS
UPSTREAM OXYGEN SENSOR CIRCUIT
1.DEF : Open circuit or short-circuit
C heck the connection and condition of the oxygen sensor connector
Check if there is no water penetration in connector (a possible cause for engine unstable running)
R eplace the connector if necessary.
C heck for lack of tightening between the exhaust collector and catalyst
If the vehicle is running more in the city, perform a cleaning of the oxygen se nsor.
C onnect the 90 ways terminal box instead of the injection computer the n check the insulation,
continuity and absence of the parasite resistance on lines: Pin 45 injection computer > pi n C oxygen sensor
Pin 80 injection computer > pi n D oxygen sensor
Fi x if necessary.
If the proble m is persisting, replace the oxygen sensor.
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.
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
vnx.su

IGNITION AND INJECTION
17
17 - 45
If failure “DF345” : Supply 5 volts potentiometers or sensors” is present or
memorize d, this must be treated as most important.
Conditions for diagnostic appl ication to memorized failure:
- During road test, smooth driving, after an engine fan starting and state
“ET027: Enriching double loop” to be active.
- During road test, smooth driving, after an engine fan starting, immediately
followed by a deceleration (rising gradie nt) with sta te “ET003: Released
pedal valve pos ition” active, gearbox ratio engaged and clutched.
* If the failure is memoriz ed with OBD indicator on, check in the context
part, if state “ET287 : Downstream oxygen sensor circuit” corresponding
to the OBD indicator lighting request is affirmative. In this case , proceed
as per bellow mentioned method
C heck the connection and condition of the oxygen sensor connector
R eplace the connector if necessary.
C heck for lack of tightening on the routing between the two oxygen sensors.
If the vehicle is running more in the city, perform a cleaning of the oxygen sensor.
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 44 injection computer > pin C oxygen sensor
Pin 76 injection computer > pin D oxygen sensor
Fix if necessary.
If the proble m is persisting, replace the oxygen sensor.
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.
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.
AF
TER
REPARATION
Diagnostic – Failures interpretation
DF 058
P RESENT
OR
ME MO RIZEDDOWNSTREAM OXYGEN SENSOR CIRCUIT
1.DEF : Open circuit or short-circuit
RE CO MME NDAT I O N S
vnx.su

IGNITION AND INJECTION
17
17 - 46
Conditions for diagnostic appl ication to memorized failure:
Set t he contact on.
* If the failure is memorized with OBD indicator on, check in the context
part, if state “ET255 : Idling adjustment circuit” corresponding to the
OBD indicator lighting request is affirmative. In this case , proceed as
per bellow mentioned method.
RE CO MM ENDATIONS
After repairing the step-by-step engine for idling adjustment, it may possible
that engine is not starting; in this situation, the “learning” stage of the adaptive
values by the injection computer must be again pe rformed (se e c hapter “
Enriching adaptive correction”).
Fi x any other possible failures then perform a conformity checking by means of
t he CLIP tester.
AF
TER
REPARATION
DF 060
P RESENT
OR
ME MO RIZEDIDLING ADJUSTMENT 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
Check the connection and condition of the step-by-step engine connector for idling adjustment
R eplace the connector if necessary.
C heck the resistance of the step-by-step engine for idling adjustment. Refer to chapter “Help” in
order to compare the measur ed resistance values with the recommended ones.
R eplace the step-by-step e ngine valves if necessa ry.
C heck the insu lation, continuity and absence of the p arasite resistance on lines:
Pin 12 injection computer > pin B step-by-step engine for idling adjustment
Pin 41 injection computer > pin A step-by-step engine for idling adjustment
Pin 42 injection computer > pin C step-by-step engine for idling adjustment
Pin 72 injection computer > pin D step-by-step engine for idling adjustment
Fix if necessary.
If the problem is persisting after these checking, treat the other failures then perform the conformity
checking.
Diagnostic – Failures interpretation
vnx.su

IGNITION AND INJECTION
17
17 - 49
DF 064
P RESENT
OR
ME MO RIZED
REC OMMENDATIONS
Conditions for diagnostic appl ication to memorized failure:
P erform a drive te st and notice the vehicle speed.
C ontinue to perform the drive test uphill at constant speed.
C ontinue to perform the drive test uphill, the acceleration pedal not being
pushe d.
* If the failure is memoriz ed with OBD indicator on, check in the context
part, if state “ET223 : Vehicle speed transducer circuit” corresponding to
t he OBD indicator lighting request is affirma tive. In this case , proceed as
per bellow mentioned method
C heck the connection and condition of the speed transduc er connector .
R eplace the connector if necessary.
C onnect the 90 w ays terminal box instead of the injection computer then check the insulation,
continuity and the absence of the parasite resistance on line 53 of the injection computer on line.
If the problem is persisting, replace the spe ed tr ansducer.
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
VEHICLE SPEED INFORMATION
vnx.su

IGNITION AND INJECTION
17
17 - 50
DF102
P RESENT
OR
ME MO RIZED
C heck for leakage on exhaust line.
If the vehicle is mostly driven in town, perform an oxygen sensor cleaning.
C heck the connection and condition of the oxygen sensor connector .
R eplace the connector if necessary.
C onnect the 90 ways terminal box instead of the injection computer then check the insulation,
continuity and the absence of the parasite resistance on lines: Pin 45 injection computer > pin C upstream oxygen sensor
Pin 80 injection computer > pin D upstream sensor
Pin 63 injection computer > pin B upstream sensor
Fi x it if necessary.
If the proble m is persisting, repla ce the oxygen sensor.
If the problem is persisting after these checking, treat the other failures then perform the conformity
checking.
Note any other functional failures.
Fix any other possible failures.
AF
TER
REPARATION
RE COMMENDATIONS
OXYGEN SENSOR FUNCTIONAL FAILURE
It shows an incoherent information received b means of the upstream
oxygen sensor.
Apply this diagnostic if the failure is prese nt or memorized.
Diagnostic – Failures interpretation
vnx.su

IGNITION AND INJECTION
17
17 - 54
Diagnostic – Failures interpretation
DF 118
P RESENT
OR
ME MO RIZED
On the vehicles equipped with refrigerant fluid pressure
transducers, the injection computer is recalculating the value of the
RE COMMENDATIONSPR 044 parameter: Compressor absorbed power, starting from the
values of the refrige rant fluid pressure.
In case of the paramete r PR027 deviation from normal values, the
value of the PR044 parameter might be wrong.
C heck the connection and condition of the connector of the refrigerant fluid pressure transducer.
M end if necessary.
C onnect the 90 ways terminal box instead of the injection computer then check the insulation and
continuity on lines: Pin 82 injection computer > p in A pres sure transducer
Pin 83 injection computer > pin B pressure transducer
Pin 18 injection computer > p in C pres sure transducer
M end if necessary.
If the problem is persisting, perform a climate control diagnostic.
Pe rform the operations from ” recommendations” for reparation confir mation
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.
vnx.su

IGNITION AND INJECTION
17
17 - 55
Diagnostic – Failures interpretation
DF 120OBD INDICATOR CIRCUIT
P RESENT 1. DEF : Open circuit or short-circuit
OR CO : open circuit
ME MO RIZED CC.O : shot circuit at mass
CC.1 : short circuit at + 12 V.
Apply the diagnostic in suc h way so that failure is prese nt or memo
rized.
RE COMMENDATIONSConditions for diagnostic appl ication at memorized failure:
- Actuator control launching AC 213 : OBD Indicator
C heck the insu lation, continuity and absence of the parasite resistance on way 34 of the
injection computer.
M end if necessary.
Ensure the presence of + 12volts at OBD indicator
C heck the cockpit fuse box, related to instrument panel supplying.
Replace it if necessary.
Perform the operations from ” recommendations” for reparation confir mation
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.
vnx.su

IGNITION AND INJECTION
17
17 - 59
DF 345SUPPLY + 5 VOLTS POTENTIOMETERS AND SENSORS
P RESENT 1. DEF Open circuit or short-circuit
RECOMMEND AT IONS Check with the contact set on, the parame ter “PR004: computer
su pp lying voltage” ( measur ed voltage at battery: about 12 volts).
- if at limit the value is of 16 volts, it means there is a short-circuit at
mass.
- if at limit the value is of 10.7 volts, it means there is short-circuit at
+ 12 volts of one one of th e supply ways +5 volts
Ch eck the connection and condition of the connectors of the valve potentiometer, manifold pressure
s ensor and refrigerant fluid pressure transduc er 9if the re is on the vehicle ).
R eplace the connector/c onnectors if necessary.
Disc onne c t one by one, the following transduc e rs, if they a re passing from sta te prese nt to
me mo rized: valve potentiometer, manifold pressure transduc er and refrigerant fluid pressure
t ransducer (if there is on vehicle).
Treat the failure from the transducer, if necessary.
Check the insu lation ,continuity and the absence of the parasite resistance on lines:
Pin 74 injection computer > pin B valve potenti ometer
Pin 78 injection computer > pin C manifold pressure transducer
Pin 83 injection computer > pin B refrige rant fluid pressure transducer (if there is).
M end if necessary.
If the problem is persisting after these checking, treat the others failures then perform the conformity
checking.
Pe rform 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
vnx.su