Dacia Solenza 2004, Repair Manual

Page: 150 / 891

IGNITION AND INJECTION
17
17 - 56
Diagnostic – Failures interpretation
DF 261
FUEL PUMP RELAY CIRCUIT
PRESENT
1. DEF Supply f after relay
OR
2. DEF Open circuit or short-circuit
MEMORIZED
If failure “DF345 : Supply 5 volts potentiometers and sensors” is
present or memorized, it must be treated as most important.
Conditions for diagnostic application at memorized failure:
Set the contact on, then enter in dialogue with the computer
Or activation of the actuator control “
AC 010 : Fuel pump relay
”.
RECOMMENDATIONSREMARK : This failure is most important. So it must be treated before
the next ones.
* If the failure is memorized with OBD indicator on, check in the context
part, if state “ET241 : Fuel pump control circuit” corresponding to the
OBD indicator lighting request is affirmative. In this case, proceed as
per bellow mentioned method
1. DEF RECOMMENDATIONS
It is a failure on the power circuit of the fuel
pump relay.
Check the electric continuity f the idleness contact.
Mend if necessary.
Check the connection and condition of the fuel pump relay connector .
Replace the connector if necessary.
Check the presence of the +12 volts supply at pole 3 of the fuel pump relay
Mend if necessary.
Check with the contact set on and acting the actuator control “AC010 : Fuel pump relay”, the
presence of +12 V supply at pole 5 of the fuel pump relay.
Replace the relay if necessary
Check the
insulation and continuity of the connections between:
Pole 5 fuel pump relay > pi n C ignition coil
Pole 5 fuel pump relay > fuel pump
Mend if necessary.
If the problem is persisting after these checking, treat the other failures then perform the
conformity checking.
Perform the operations from ” recommendations” for reparation confirmation.
AFTER
Fix any other possible failures
REPARATION
Erase the failures memorized by the injection computer.
Perform a conformity checking by means of the CLIP tester.
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