2004 DACIA SUPERNOVA check oil

AIR CONDITIONING
62
62 - 7
The compressor is absorbing the vapors coming from the evaporator at low pressure and
temperature, is compressing them and convey the gas at high temperature and pressure. The refrigerant fluid in high pressure and temperature vapor condition is entering in the second
he at exchanger, which by condensation is transmitting the heat to the external environmental.
At the exit from the condenser, the refrigerant fl uid is in liquid condition, at a high pressure and temperature.
Type of compressor: SD 7Y15
Compressor oil : PAG SP 10 or SP20, volume –135 cmc.
Refrigerant: HFC 134 a, quantity of refrigerant : 0.590 kg
C OMPRESSOR REPLACEMENT
DISMOUNTING
Disconnect the battery.
Drain the refrigerant circuit.
Disconnect the compressor’s connection.
Disconnect the pipes from the compressor.
Dismount the belt tensioning screw and release the belt.
Dismount the compressor attachment screws.
Dismount the compressor.
Replace the compressor.
REMOUNTING
Perform in the reverse order the dismounting operations.
T ension the belt and tighten at the required moment the tightening attachment screw.
Fill the refrigerant circuit and check the good operation of the climate control system.
COMPRESSOR
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AIR CONDITIONING
62
62 - 11
UNIT PIPING
The air conditioning unit piping is ensuring the refrigerant fluid circulation between the unit
components. When piping is replaced, check the existence of the protective covers, the lubrication
of the connections and gaskets with compressor oil as well as filling up with compressor oil.
The unit filling and draining valves are placed on the compressor piping and they have different
diameters, so that they can not be reversed.
NOTE
For tightening or loosening the unit piping connections where the refrigerant fluid is
passing through, two special wrenches are to be used, in order to balance the moments’ twist.
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AIR CONDITIONING
62
62 - 14
Correct AC system
filling.
Compressor does not work.
Ye s
Ye s No Ye s
Check the clutch coil. Damaged,
short-circuit?
Replace the
compressor.Restore the electric circuit
between E and clutch.
Is + 12 V at pol e E 5 of E relay?
Is + 12 V at pole E3 of E relay?
Is + 12 V at pole E3 of E relay?
Check fuse S6 from engine
compartment. Restore the
wiring between S6 and relay E.
No
Restore the wiring between pole
E1 of E relay a nd pole D5 of D
relay.
No
The wiring between injection
computer
and the pole E2 of E re lay is broken ?
Ye s
Repair the wiring.
Ye s
No
Check the pressure
controller electric circuit.
Injection computer does not receive
AC actuation?Yes
Check the switch electric circuit.
Pressure controller is working?
No
Replace the switch.
AC control switch is
working ?No
Ye s
Ye s
Check the pressure controller
electric circuit.
No
Replace the pressure controller.
No
DIAGNOSIS
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83
INSTRUMENT PANEL
83-4
CO
NNECTOR X
1. Low beam indicator
2. Anti starting indicator
3. Supply(+IC) anti starting indicator
4. Injection failure indicator
5. Oil pressure warning
6. Water temperature indicator
NOTE
In case of the interventions on the instrument panel, check the existence of the
rubbe r i solati ng ele ments on the windsc re en lower c ross bar, pl ac e d behi nd the
instrument panel. For the vehicles corresponding to the pollution norm EURO 2000, at the X c onnector,
position 4 is “ OBD anti-pollution failure indicator”. The i nstrument panel is provided with thre e connectors having the following pl ugs
correspondence:
CONNECTOR V
1. Instrum ent panel lighting
2. Ground
3. Rear window defrosting indicator
4. High beam indicator
5. RPM
6. Supply (+DC) after contact
7. Free
8. Ground
9. Right turning indicator
10. Left turning indicator CONNECTOR Z
1. Hazard indicator
2. Water temperature warning
3. Supply (+DC) after contact
4. Ground
5. ICP and handbrake warning
6. Brake pads wear warning
7. Fuel level indicator
8. Fuel level minimum warning
9. Battery charging indicator
CO
NNECTORS(after 01.06.2001)
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83
INSTRUMENT PANEL
OIL PRESSURE WARNING LIGHT STILL ON
AFTER ENGINE STARTING
Check the oil pressure
The pressure is correct.
Replace the oil pressure switch. The pressure is not correct.
There is a failure in the oil circuit.
OIL PRESSURE WARNING LIGHT IS NOT ON
WHEN CONTACT SWITCH ON
Place the wire from the oil pressure switch to the ground.
Wa r ning light is not on.
Check if the bulb is not burnt.
Warning light is on. Replace the oil pressure
switch.
Burnt bulb. Replace it. Bulb is not burnt . Check the bulb
supply wiring and fix it.
FUEL LEVEL INDICATOR
SHOWING ALWAYS FULL
Disconnect the connection wire t o the probe.
The indicator comes back
to zero. Re place the probe. The indicator
does not come to zero.Is there
any ground short-circuit of the connection
wi re to the probe?
Yes. Fix the wiring layout. No. Replace the indicator.
83-7
DIAGNOSTIC
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89A
ELECTRICAL DIAGRAMS
89A - 6
PA
RTICULARITIES REGARDING THE CONNECTORS
DISCONNECTING METHOD
Because this vehicle is equipped with electronics systems controlling and checking different
functions, it is necessary the execution of the electric connection by means of some connectors
provided with securing de vices after coupling performing. Due t o this reason, i n c ase t heir
disconnecting is necessary, proceed observing the following observations:
- connectors for: ignition coil (pos.1), canister purging valve (pos.2), AC pressure sensor (pos.3),
atmospheric pre ssure sensor(pos.4), siren(pos.4), step-by-step engine (pos.5), valve potentiometer
(p os.6), cooling blower (pos.7) are to be disconnected after easy pulling the locking clamp in the
di rection shown by the arrow.
- the connectors for: RPM sensor (pos.8), front hood contact (pos.9) are to be disconnected
after easy pulling the locking clamp (A) in the arrow direction, for unlocking.
pos. 8
A
pos. 9
A
pos. 1pos. 2pos. 3
pos. 5 pos. 6
pos. 7pos. 4
C
B
A
pos.10
GENERALITIES
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