2004 DACIA SUPERNOVA relay

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 17
DEFECTUL
1 Lack of c ommunication with the calculator 17-17
2 Calculator 17-18
3 Supply 17-19
4 Circuit of command actuator re lay 17-20
5 Circuit of command petrol -pump relay 17-21
6 Circuit of 1 cylinder injector 17-22
7 Circuit of 2 cylinder injector 17-23
8 Circuit of 3 cylinder injector 17-24
9 Circuit of 4 cylinder injector 17-25
10 Circuit of 1 and 4 ignition coil 17-26
11 Circuit of 2 and 3 ignition coil 17-27
12 Revolution ratio sensor information 17-28
13 Anti-start device 17-29
14 Failure to memorize the anti-start code 17-29
15 Circuit of atmospheric pre ssure sensor 17-30
16 Circuit of idle mode adjustment 17-31
17 Circuit of clapper potentiometer 17-32
18 Circuit of water-t emperature sensor 17-33
19 Circuit of air-t emperature sensor 17-34
20 Circuit of canister draining valve 17-35
21 Circuit of oxygen probe 17-36
22 Circuit of oxygen probe heating 17-37
23 Circuit of detonation probe 17-38
24 Car speed inform ation 17-39
25 Circuit of command air-c onditioning compressor relay 17-40
26 Water-temperature warning circuit 17-41
27 Circuit of command low-speed ventilator relay (air-c onditioned car) 17-42
28 Circuit of command high-speed ventilator relay (air-conditioned car) 17-43
29 Circuit of command ventilator relay (air-conditioned car) 17-44
30 Functional failure of oxygen probe 17-45
31 Pollutant combustion misfire / Disruptive combustion misfire 17-46
32 Combustion misfire at cylinders 1, 2, 3 and 4 17-47
DIAG NOSING-INTERPRETING THE DEFECTS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 20
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT
OR MEMO-
RIZED3.SUPPLY
1. Breakdown + 12V after the actuator relay 238 (D)
2. Breakdown + 12V after the contact (D.C)
SUGGES TIONSConditions of breakdown detection by the calculator:
-tak e the contact and wait till dialogue with the tester is lost
-put the contact and enter dialogue.
Conditions of performing the diagnosing:
-defec t is present.
Check the state of the battery and the connections to the mass.
Remedy if necessary.
Check the connecting and the state of the connector of 238 relay.
Change the connector if necessary.
Check the presence of +12V at the pole 3 of 238 relay.
Remedy the circuit to fuse S
1.
Take plug 5 out of the connector of 238 relay.
Check, after setting the contact, the presence of +12V at the pole 5 of
238 re lay.
Change relay if necessary.
Check insulation and the continuity of the circuit:
pin 66 of calculator
® pole 5 of actu ator relay 238.
Remedy if necessary.
Disconnect an element at a time (injector, canister draining valve, probe
O
2) and check the presence of +12 V for each of them.
Change the faulty element.
1.
2. The defe
ct is not active because it causes the loss of dialogue with the
tester
AFTER REPAIR
Er 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 - 21
DIAG
NOSING-INTERPRETING THE DEFECTS
CIRCUIT OF COMMAND ACTUATOR RELAY
1. Circuit of command or short-circuit to the mass of the circuit to-
wards pin 39 of the calculator
2.
Short-circ uit a t 12V a long the c irc uit tow a rds p in 39 of the c a lc ula tor
4.
SUGGESTIONSConditions of breakdown detection by the calculator:
-tak e the contact and wait till dialogue with the tester is lost
-put th e contact and enter dialogue.
Condition of performing the diagnosing:
-defec t is present.
REMARK : This defect has priority and should be dealt with be-
fore the following ones.
Check the state of the battery and the connections to the mass.
Remedy if necessary.
Check the connecting and the state of the connector of 238 relay.
Change the connector if necessary.
Check the presence of +12V at the pole 1 of 238 relay.
Remedy the circuit to fuse S
1 in the engine compartment.
Check the coil of the 238 actuator relay.
Change relay if necessary.
Connect the 90-way terminal-tester instead of the calculator and check the insulation and
the continuity along the circuit:
pin 39 of calculator
♦ pole 2 of actu ato r r elay 2 38.
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.
AFTER REPAIR Er
ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
DEFECT
PR ESENT
vnx.su

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 23
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT OR
MEMORIZED
CYLINDER 1 - INJECTOR CIRCUIT
1. Short-circuit at 12 V along the way to the pin 59 of the calcula- tor (injector command)
2. Short-circuit to the mass along the way to pin 59 of the calcula- tor (injector command)
3. Open c ircuit along the way to the pin 59 of the calculator (injec
tor command)
SUGGESTIONS
Conditions of breakdown detection by the calculator:
-the engi ne is started
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
6.
Check the resistance of injector 1.
Change injector if necessary.
Check, after setting the contact, the presence of 12V at the pin 1 of injector 1.
Remedy, if necessary, the circuit up to the 238 actuating relay.
Connect the 90-way terminal-tester instead of the calculator and check the insulation
and the co
ntinuity along the circuit:
pin 59 of calculator
♦ pin 2 of injector 1.
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.
AFTER REPAIR
Erase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
vnx.su

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 24
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT OR
MEMO RIZED
CYLINDER 2 - INJECTOR CIRCUIT
1. Short-circuit at 12 V along the way to the pin 90 of the calculator
(injector command)
2. Short-circuit to the mass along the way to pin 90 of the calculator (injector command)
3. Open circuit along the way to the pin 90 of the calculator (injector comm and)
Conditions of breakdown detection by the calculator:
-the engi ne is started
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
S UGGESTIONS
Check the resistance of injector 2.
Change injector if necessary.
Check, after setting the contact, the presence of 12V at the pin 1 of injector 2.
Remedy, if necessary, the circuit up to the 238 actuating relay.
Connect the 90-way terminal-tester instead of the calculator and check the insulation and
the continuity along the circuit:
pin 90 of calculator ♦ pin 2 of injector 2.
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
calculator.
Erase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
AFTER REPAIR
7.
vnx.su

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 25
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT OR
MEMO RIZED
CYLINDER 3 - INJECTOR CIRCUIT
1. Short-circuit at 12 V along the way to the pin 60 of the calculator (injector command)
2. Short-circuit to the mass along the way to pin 60 of the calculator (injector command)
3. Open circuit along the way to the pin 60 of the calculator
(injector command)
S UGGESTIONS
Conditions of breakdown detection by the calculator:
-the engi ne is started
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
Check the resistance of injector 3.
Change injector if necessary.
Check, after setting the contact, the presence of 12V at the pin 1 of injector 3.
Remedy, if necessary, the circuit up to the 238 actuating relay.
Connect the 90-way terminal-tester instead of the calculator and check the insulation and
the continuity along the circuit:
pin 60 of calculator ♦ pin 2 of injector 3.
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.

AFTER REPAIR
Er ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
8.
vnx.su

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 26
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT
OR
MEMORIZED
CYLINDER 4 - INJECTOR CIRCUIT
1. Short-circuit at 12 V along the way to the pin 89 of the calculator (injector command)
2. Short-circuit to the mass along the way to pin 89 of the calculator (injector command)
3. Open c ircuit along the way to the pin 89 of the calculator (injector
command)
SUGGESTIONS
Conditions of breakdown detection by the calculator:
-the engi ne is started
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
Check the resistance of injector 4.
Change injector if necessary.
Check, after setting the contact, the presence of 12V at the pin 1 of injector 4.
Remedy, if necessary, the circuit up to the 238 actuating relay.
Connect the 90-way terminal-tester instead of the calculator and check the insulation
and the co ntinuity along the circuit:
pin 89 of calculator ♦ pin 2 of injector 4.
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.
AFTER
REPAIR Er
ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects
9.
vnx.su

E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 27
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT OR
MEMORI ZED
CYLINDERS 1 AND 4 IGNITION COIL CIRCUIT
1. Short-circuit at 12 V along the way to the pin 32 of the calculator (cylinders 1 and 4 coil command)
2. Open circuit or short-circuit to the mass along the way to pin 32 of the calculator (cylinders 1 and 4 coil command).
SUGGESTIONS
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 has been memorized but is recorded in the “present”
state.
Check the re s istance of co il be tween th e outlets for cy linders 1 and 4.
Change the co il if ne ce ss ar y.
Check, after setting the contact, the presence of +12V at the pole 1 of oil pump 236
re lay.
Remedy it if necessary.
Connect the 90-way terminal-tester instead of the injection calculator and check the
ins ul ati on and the continuit y al ong the cir cu it:
pin 32 of cal cul ato r ♦ pin A 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 o il-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.
10.
AFTER
REPA IREr
ase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
vnx.su