2004 DACIA SOLENZA wiring

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If further to the diagnostic by means of the CLIP tester, it is necessary the replacement of the
E. C.U. (computer) injection, for its dismounting, proceed as follows:
-disconnect the battery (the contact being off);
-d ismount the screw from the battery attachment clip;
-remov e the battery;
-d ismount the two attachment nuts of the injection computer and of the ECU protector;
-remov e the injection ECU protector;
-d isconnect the injection computer from the engine wiring;
-d ismount the ECU injection
For mounting, perform the dismounting operations in the reverse order.
The in jection computer is delivered not coded. It is necessary the memorising of an anti starting
code in the computer, after this has been mounted.
Proceed as follows: 1. Set the contact on, without starting the engine, for 5 seconds.
2. Ta ke off the contact; after 10 seconds, the anti starting function is activated, and the anti
starting indicator will blink rarely (one blink per second). 3. Set the contact on. The anti starting indicator must turn off after 3 seconds and the engine
can be started. In or der to disconnect the injection computer (E.C.U. injection) act upon the blocking lever (A)
of the connector in the direction of the B arrow, then the connector will be lifted in the direction of
the C arrow. In ca se the vehicle is blocked on the road further to serious damages of the anti starting system,
the “ Procedure for repairing code introduction” may be used, which allows the moving of the
vehicle to the nearest DACIA service centre for complete repairing. In order to perform this
procedur e it is necessary the CLIP tester and the specific repairing code of that vehicle.
A
B
C
Electric control unit injection replacement
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Diag nostic
FA ILURES AND STATES INTERPRETATION
1. FAILURE OF COMMUNICATION CLIP TESTER/ E.C.U. DECODER
RECOMMENDATION Check if the lines K and L are not disturbed by another computer of the vehicle.
Check the condition of fuse F 03 from the cockpit fuse box.
Replace the fuse if necessary.
Check if the CLIP tester is not the cause of the failure; check if the tester is communicating
with another computer of the same vehicle (injection computer).
M easure the tension of the vehicle’s battery (U> 12,3V). If necessary, charge the battery.
Check if the E.C.U. decoder is correctly connected to the vehicle’s wiring.
Check the right supply of the E.C.U. decoder:
-presence of the mass at pin A8 of the E .C.U. decoder
- supply + I.C. at pin A9 of t he E .C.U. decoder
Be sure that the diagnostic socket i s proper supplied, according to the circuit diagram.
Check the continuity and the isolation of the electric wiring on the corresponding pins layout.
E.C.U. decoder A3 7 diagnostic socket
A4 15
If the connection tester CLIP – E.C.U. decoder can’t be established, then replace the decoder.
AFTER REPAIRING After establishing the communication with the tester, fix the
possible failures.
Perform a conformity checking.
{ }
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Diag nostic
2. 4D STATE: + 12 V (+DC) SUPPLY, EXISTENT
RECOMMENDATION Observation : - 4D state = ACTIVE when the contact i s on “M” position;
- 4D state = PASSIVE when the contact is not on “M ”position.
AFTER REPAIRING Perform a conformity checking.
Check the operation of the anti starting system.
YES
NO Replace the E.C.U. decoder if its communication with t he tester can not be realised.
Repair the electric wiring on the supply layout to the pin A7 of E.C.U. decoder.
Check the F03 fuse condition.
Replace the fuse if necessary.
Place the contact on “M” position and check the presence of +12V at the pin A7 of the
E.C.U. decoder. Is there +12V?
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Diag nostic
3. FAILURE : DOORS BLOCKING SWITCH
Remove the memorised failure by means of the CLIP tester.
AFTER REPAIRING Perform a conformity checking.
Check the operation of the anti starting system.
Check the isolation related to the m ass of the
wir ing between the E.C.U. decoder doors’
locking switch B2 pin pole 1
B5 pin pole 5
Is there a correct isolation?
Repair the electric wiring.No
Replace t he doors’ locking switch.
Ye s
RECOMMENDATION Check if the switch does not remain permanently pressed due to a
mechanical blocking.
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Diag nostic
4.FAILURE: M ISSING SIG NAL ON TH E CO DED LINE E.C.U. DECO DER-
COMPUTER INJECTION
RECOMMENDATION-
Check the continuity and the isolation related t o the mass and + 12 V of the wiring between
the E .C.U. decoder PinA6 pin58 injection computer.
Fix it if necessary.
.
Set t he contact on and perform the detection test using the CLIP tester at pin A 6 of the ECU
decoder.
Are there any impulses?
YES
NO Replace the ECU injection.
Replace the E .C.U. decoder.
Remove the memorised
failures by means of the CLIP tester.
AFTER REPAIRING Perform a conformity test. Check the operation of the anti starting system.
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Diag nostic
5. FAILURE : DEFECTIVE COMMUNICATION ANTI STARTING SYSTEM -
E.C.U. DECODER
RECOMMENDATION -
Check the continuity and the isolation related to the mass and + 12 V voltage of the wiring
between the anti starting system pin 4 pin A2 E.C.U. decoder
Fix it if necessary.
Check the anti starting bushing supply : + 12V to the pin 3 and the mass to pin 2.
Di sconnect the E.C.U. decoder and measure the presence of +12 V at the pin A2 of the
decoder, the contact being taken off. If there it isn’t +12 V, check the fuse condition F03 from
the cockpit fuse box.
If the problem persists, replace the anti starting bushing.
Set the contact on and perform the impulse detection test at the pin A2 of the E.C.U. decoder.
Is there an impulse ?
YES
NO Replace the anti starting bushing.
Replace t he E.C.U. decoder.
Remove the memorised
failures by means of the CLIP tester.
AFTER REPAIRING Perform a conformity checking.
Check the operation of the anti starting system .
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Diag nostic
6. STATE 11G: ACTIVATE THE RF REMOTE CONTROL/ RECEIVED RF SIGNAL
IN DICATION
If the 17D state is PASSIVE, do not apply the next diagnostic
because the E .C.U. decoder is unused (new).
RECOMMENDATION Perform first the remote control synchronisation.
Do not access the next diagnostic if the state 11G remains
PA SSIVE when activating the RF remote c ontrol at the blocking
and unlocking of the doors.
Check the blocking and unlocking of the doors using the second RF remote control. If this
is one is operating, then the battery of the first RF remote control must be replaced.
Check the presence of +12 V(+DC) at the pin1 of the anti starting bushing.
Is there +12V ?
Pe rform using the CLIP tester, the impulse de tection test at the pin 1 of the anti
starting bushing, when using the RF remote control.
Are any impulses when using the remote control ?
YES Replace the E .C.U. decoder.
NO Replace the anti starting bushing.YES
Check the isolation related to the mass of the electric wiring between:
E.C.U. decoder Pin B1 pol e 1 anti start ing bushi ng Pin B2 pole 1 door locking switch
Pin B5 pole 5
Isolation against mass is good?
YES Fix the electric wiring.
NO Replace the E.C.U. decoder
.
NO
AFTER REPAIRING Perform a conformity checking.
Check the operation of the anti starting system.
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Diag nostic
8.14G STATE : DOORS BLOCKING/ UNLOCKING
RECOMMENDATION The state 10G (anti starting) must be ACTIVE .
Check the continuity and the isolation related to the +12 V and to the mass of the electric
wiring on the line E.C.U. decoder
Pin B2 pole 1 door locking switch.
Pin B5 pole 5
Fix the electric wiring if necessary or replace the switch.
If the incident persists, replace the E.C.U. decoder.
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