electrical Citroen C4 2005 2.G User Guide
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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS/PRECAUTIONS: AL4 AUTOMATIC GEARBOX (SHIFT LOCK)
SHIFT LOCK.
NOTE: The«shift lock» is a system that locks the gear selection lever in position«P».
Unlocking the «SHIFT LOCK»
(normal operation).
- Switch on the ignition.
- Press the brake pedal and keep it pressed.
- Move the gear selection lever out of position«P».
Unlocking the «SHIFT LOCK»
(with an operating fault).
NOTE:It is impossible to unlock the«shift lock» with the«Normal operation» method.
The fault may originate from one of the following components:
- «Shift lock».
- Gear lever position switch.
- Automatic gearbox ECU.
- Electrical harnesses.
- Battery voltage.
Remove:
- Unlock the«shift lock» by pressing at «a» with a screwdriver placed in the gear
selection control gate.
- Move the gear selection lever out of position«P».
Engine: RFN
XSARA PICASSO
B2CP3N8C
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Page 449 of 462
Downloaded from www.Manualslib.com manuals search engine AIR
CONDITIONING
443
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Aircon circuit diagnosis table
Principal problem Symptom Possible causes
Aircon compressor clutch
Lack of aircon fluid in the aircon circuit
The clutch of the aircon compressor does not Aircon pressostat
engage, or disengages suddenly Aircon evaporator sensor
The aircon compressor does not turn Electrical circuit
(wiring, fuses, etc.)
or stops suddenly
Auxiliaries drive belt
Aircon compressor
The clutch of the aircon compressor remains Filtering and drying cartridge
engaged and stops suddenly
Aircon pressure reducer
Leak of aircon fluid
Aircon compressor clutch
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