Dacia Solenza (engine E7J). Manual - part 37

IGNITION AND  INJECTION

17

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Diagnostic – Failures interpretation

DF 118

PRESENT

OR

MEMORIZED

On the vehicles equipped with refrigerant fluid pressure
transducers, the injection computer is recalculating the value of the

RECOMMENDATIONS

PR044 parameter: Compressor absorbed power, starting from the
values of

 the refrigerant fluid pressure.

In case of the parameter PR027 deviation from normal values, the
value of the PR044 parameter might be wrong.

Check the connection and condition of the connector of the refrigerant fluid pressure transducer.
Mend if necessary.

 Connect 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 pressure transducer

Pin 83 injection computer       >

 pin B pressure transducer

Pin 18 injection computer       > p

in C pressure transducer

Mend if necessary.

If the problem is persisting, perform a climate control diagnostic.

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.

IGNITION AND  INJECTION

17

17 - 55

Diagnostic – Failures interpretation

DF 120

OBD INDICA

TOR CIRCUIT

PRESENT

1.  DEF :  Open circuit or short-circuit

OR

CO : open circuit

MEMORIZED

CC.O : shot circuit at mass
CC.1 : short circuit at + 12 V.

Apply the diagnostic in such way so that failure is present or memo
rized.

RECOMMENDATIONS

Conditions for diagnostic application at memorized failure:
- Actuator control launching  AC 213 : OBD Indicator

Check the insulation, continuity and absence of the parasite resistance on way 34 of the
injection computer.
Mend if necessary.

Ensure the presence of + 12volts at OBD indicator
Check the cockpit fuse box, related to instrument panel supplying.

Replace it if necessary.

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.

IGNITION AND  INJECTION

17

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Diagnostic – Failures interpretation

DF 261

 FUEL PUMP RELAY CIRCUIT

PRESENT

1.  DEF Supply failure + 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.

IGNITION AND  INJECTION

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DF 261

CONTINUATION

2. DEF

RECOMMENDATIONS It is a failure on the power circuit of the fuel

pump relay.

Check the connection and condition of the fuel

 pump relay connector.

Replace the connector if necessary.

Check, with the contact set non, the presence of the +12 volts supply at pole 1 of the fuel pump
relay.
Mend if necessary.

Check the fuel pump relay coil.
Replace the fuel pump relay if necessary.

 Check the insulation and continuity of the line:

Pin 68 injection computer       > pol

e 2 fuel pump relay

 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.

Diagnostic – Failures interpretation