2004 DACIA SUPERNOVA relay

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 28
DIAG
NOSING-INTERPRETING THE DEFECTS
CYLINDERS 2 AND 3 IGNITION COIL CIRCUIT
1. Short-circuit at 12 V along the way to the pin 1 of the
calculator (cylinders 2 and 3 coil command)
2. Open circuit or short-circuit to the mass along the way to pin 1 of th e calcula tor (cylinders 2 and 3 coil command).
DEFECT
PRESENT OR
MEMO RIZED
Conditions of breakdown detection by the calculator:
-the engine is started or turned with the starter for 10 seconds
Condition of performing the diagnosing:
-defec t is present
-the defect h as been memorized but is recorded in the “present”
state.
S UGGESTIONS
Check the resistance of coil between the outlets for cylinders 2 and 3.
Change the coil if necessary.
Check, after setting the contact, the presence of +12V at the pole 1 of oil pump 236
relay.
Remedy it if necessary.
Connect the 90-way terminal-tester instead of the injection calculator and check the
insulation and the continuity along the circuit:
pin 1 of calcul ato r
♦ pi n B of ignition coil.
Remedy if necessary.
Check:
-con nection and state of the 236 oil-pump relay
-the presence of +12 V, after contact, at the 1 pole of the 236 relay
-the circu it between the 2 pole of the 236 relay and pin 68 of the injection calculator
-the coil of the 236 oil-pump relay.
Remedy if necessary.
The problem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an electric shock.
The cause of the destruction must be found before mounting a new
calcul ator.
Er ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
AFTER
R EPAIR
11.
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 38
DIAG
NOSING-INTERPRETING THE DEFECTS
OXYGEN PROBE HEATING CIRCUIT
1. Short-circuit at 12 V along the way to pin 63 of calculator (heating oxygen probe command)
2. Short-circuit at mass along the way to pin 63 of calculator (heating oxygen probe command)
3. Open circuit at 12 V along the way to pin 63 of calculator (heating oxygen probe command)
4. Breakdown of the probe fuse heating power.
DEFECT
PR ESENT OR
MEMO RIZED
Conditions of breakdown detection by the calculator:
-start the engine
Conditions of performing the diagnosing:
-defec t is present

-t he def ec t has been memor ized but is rec orded i n t he “pr es e nt ” s t at e.
SUGGESTIONS
Check the connection and the condition of the oxygen probe connector
Change the connector if necessary.
Check the heating resistance of the oxygen probe.
Change the oxygen probe if necessary.
Check the presence of +12V at pin A of the oxygen probe.
Remedy the electric circuit up to the actuating relay 238 if necessary
Connect the 90-way terminal-tester instead of the calculator and check the insulation,
the continuity and the absence of contact resistance along the circuit:
pin 63 of calculator −> pin B of the oxygen probe.
Remedy if necessary.
The proble m is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an electric shock.
The cause of the destruction must be found before mounting a new
calcul ator.
22.
Erase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
AFTER REPAIR
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 41
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT
AIR-CONDITIONING COMPRESSOR RELAY COMMAND CIRCUIT
1. Open circuit or short-circuit to mass of the way to pin 10 of the
calculator
2. Short-circuit at 12 V along the way to pin 10 of the calculator25.
Check the connection and the condition of the 584 compressor relay.
Change the connector if necessary.
Check the presence of +12 V at pole 3 of the 584 compressor relay.
Check fuse S6 in the engine compartment.
Remedy it if necessary.
Check the presence of mass at pole 2 of the584 compressor relay
Remedy if necessary.
Check that the insulation and the continuity of the circuit:
pin 10 calculator
♦ pole 2 of the 584 compressor relay.
Remedy if necessary.
Check the coil of the 584 relay.
Change relay if necessary.
The prob lem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an electric shock.
The cause of the destruction must be found before mounting a new
calcul ator.
Erase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
AFTER REPA IR
Condition of breakdown detection by the calculator:
-take the contact, and wait for the dialogue with the tester to be lost,
then set the contact and resume dialogue.
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
Note: The calculator will command the compressor relay only if the con-
d itions are met which allow the good operational mode of the air-condi-
tioning installation (pressure of refrigerating agent in installation, work-
ing electric circuit between calculator and A.C. start switch).
Refer to directions of A.C installation repairing.
S UGGESTIONS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 43
DIAG
NOSING-INTERPRETING THE DEFECTS
LOW SPEED VENTILATOR RELAY COMMAND CIRCUIT
(for A.C. cars)
1. Open circuit or short-circuit to mass of the way to pin 8 of the calcu- lator
2. Short-circuit at 12 V along the way to pin 8 of the calculator.DEFECT
PR ESENT27.
Conditions of breakdown detection by the calculator:
-take the contact and wa it for the dialogue with the tester to be lost
-set the conta ct and enter dialogue.
Condition of performing the diagnosing:
-defec t is present
Note: this defect has to be correlated with the diagnosing of the water
temperature sensor circuit and the air-conditioning installation.
SUGGESTIONS
Check the connection and the condition of the low-speed 700 ventilator connector
Change the connector if necessary.
Check, after setting contact, the presence of +12 V at pole 1 of the 700 relay.
Remedy it if necessary.
Connect the 90-way terminal-tester instead of the calculator and check the insulation
and the co ntinuity along the circuit:
pi n 8 of calculator
♦ po le 2 of the low-speed 700 ventilator relay.
Remedy if necessary.
Check the coil of the low-speed 700 ventilator relay.
Change relay if necessary.
The problem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an electric shock.
The cause of the destruction must be found before mounting a new
calcul ator.
AFTER
REPAIREr ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 44
DIAG
NOSING-INTERPRETING THE DEFECTS
HIGH SPEED VENTILATOR RELAY COMMAND CIRCUIT
(for A.C. cars)
1. Open circuit or short-circuit to mass of the way to pin 38 of the calculator
2. Sh ort-circuit at 12 V along the way to pin 38 of the calculator.DEFECT
PRESENT
Conditions of breakdown detection by the calculator:
-take the contact and wait for the dialogue with the tester to be lost
-set the conta ct and enter dialogue.
Condition of performing the diagnosing:
-the defe ct is present
Note: this defect has to be correlated with the diagnosing of the water
temperature sensor circuit and the air-conditioning installation.
S UGGESTIONS
Check the connection and the condition of the high-speed 234 ve n tilator co n nector
Change the connector if necessary.
Check, after se tt i ng co ntact, the presence of +12 V at po le 1 of the 234 re la y .
Remedy it if necessary.
Connect the 90-way terminal-tester instead of the calculator and check the insulation
and the con ti nui ty alo ng the circui t:
pin 38 of calculator
® pole 2 of the low-speed 234 ve nt il a to r relay.
Remedy if necessary.
Check the co i l of the lo w- sp e ed 23 4 ventilator relay.
Change re la y if necessary.
The problem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an
ele ct ric sho ck.
The cause of the destru ction must be found before mounti ng a new
calcu lato r.
Er ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.AFTER
R EPAIR
28.
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 45
DIAG
NOSING-INTERPRETING THE DEFECTS
VENTILATOR RELAY COMMAND CIRCUIT
(for cars having no A.C.)
1. Open circuit or short-circuit to mass of the way to pin 8 of the calculator
2. Sh ort-circuit at 12 V along the way to pin 8 of the calculator.DEFECT
PRESENT29.
Conditions of breakdown detection by the calculator:
-take the contact and wait for the dialogue with the tester to be lost
-set the conta ct and enter dialogue.
Condition of performing the diagnosing:
-the defe ct is present
Note: this defect has to be correlated with the diagnosing of the water
temperature sensor circuit.
SUGGESTIONS
Check the connection and the condition of the connector of the 23 4 cooling ventilator
re lay.
Change the connector if necessary.
Check, af t er se tt i ng co nt a ct, the pr e sence of +12 V at po le 1 of the 234 re lay.
Remedy it if necessary.
Connect the 90 - way te r m in a l -tester instead of th e calculator an d check the in s ulation
and the con ti nui ty alo ng the circui t:
pi n 8 of ca lc ul at or
♦ pole 2 of th e 23 4 cooling ve nt il at or re la y.
Remedy if necessary.
Check th e coil of th e 234 co ol in g ventilator relay.
Change th e relay if ne ce ss ar y .
The problem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an
ele ct ric sho ck.
The cause of the destru ction must be found before mounti ng a new
calcu lato r.
Er ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.AFTER
R EPAIR
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 49
DIAGNOSING-CON
FORMITY TEST
Finally, the testing of the various states and parameters of the system will be done,
in the following situations:
A - With the stopped engine, and with contact set
B - With the hot engine, in idle mode, without consumers
C - During a route test.
LIST OF STA TES
Nr.
crt:Characteristics
1.
State: +After Contact to calculator
Parameter: Supply voltage of
injection calculator
Actuating relay command
Stat e: Connection for AC
Stat e: Configuration with anti-
st arter
Stat e: Connection with speed
translator
Stat e: Anti-starter
Acceleration pedal let free
Stat e: position of clapper when the
acceleration pedal is raised
Parameter: position of cla pper
Parameter : Memorized va lue for
t he position when the pedal is raised
Acceleration pedal slightly pushed
Stat e: position of clapper when ac-
cele ration pedal is raise d
Stat e: position of clapper when ac-
celerat i on pedal is comp letel y
pushed
A cceleration pe dal completely
pushed
Stat e: position of clapper when ac-
celerat i on pedal is comp letel y
pushed
Parameter: position of cla pper
Function
Battery
voltage
2.
Injection
calc ulator
configura-
tion
3. Anti-starter
4.
SUGGESTIONSA- With the stopped engine, and with contact se t
Visualizing and
Rema rks
Confirmed state
11.8V Confirmed state
if the car is
equipped with AC
Confirmed state
Confirmed state
Not confirmed
state
Confirmed state
0 Not confirmed
state
Not confirmed
state
Confirmed state
200 further problems
arise, refer to the
di agnosing of that
parameter
If further problems
arise, refer to the
di agnosing of those
states
If further problems
arise, refer to the
di agnosing of that
state
If further problems
arise, refer to the
di agnosing of those
parameters Diagnosis
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 50
DIAGNOSING-CON
FORMITY TEST
LIST OF PARAMETERS
5.Water te m-
perature sen-
sor Parameter
: water
temp erature X= Eng ine
temperature +/- 50C
If further problems
arise, refer to the diag-
no sing of that parameter
Parameter : air te mperature
Air tempera-
ture se nsor X= Temp erature
under engi ne ho od
+/- 5
0C
If further problems arise,
refer to the diagnosing of
that parameter
6.
P
ressure sen-
sor Parameter
: collector
pressure
Parameter : atmospheric
pressure If
further problems arise,
refer to the diagnosing of those parameters
X= Atmo s pheri c
pressure
X= Atmo s pheri c
pressure
7.
COMMAN D OF A CTUATO RS
8. Petrol pump Command:
relay of petrol
pu
mp
F unctioning of
petrol pump must be heard If
further problems arise,
refer to the diagnosing of that command
Command: low speed cool-
i ng ventilator
Command: high speed cool-
i ng ventilator F
unctioning of
l ow speed ventila-
tor must be heard
F unctioning of
high speed venti-
lator mu st be
heard If
further problems arise,
refer to the diagnosing of that command
If further problems arise,
refer to the diagnosing of that command
C
ooling
ventilator
If further problems arise,
refer to the diagnosing
for lack of conformity to
idle mod e adjustment
Pu
t hand under the
engine to feel its
functioning
Command:
idle mode adjust-
me nt engine
St
ep-by-step
engine
If further problems
arise, refer to the diag-
nosi ng defects along the
d raining valve circuit
Va l
ve must be
functional
Command: C
anister draining
valve
C
anister
draining
valve
9.
10. 11. If further problems
arise, refer to the diag-
nosi ng of the states of air
conditioning
Compress
or must
couple
Command:
AC must be op-
erated through the board
switch
Air condi-
tioning (AC)
12.
Command: Water tempe ra-
ture
alert light indicator on
board
Water te m-
perature alert
light indica-
tor
13.
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