2005 Citroen C4 fault

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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS/PRECAUTIONS : AL4 AUTOMATIC GEARBOX
Procedure to be followed prior to carrying out repairs on AL4 autoactive gearbox
If a gearbox malfunction occurs, there are two possible configurations
depending on the seriousness of the fault:
- Gearbox in back-up mode with a replacement programme of
(the fault
values are taken in substitution).
- Gearbox in back-up mode with an emergency programme (3rd hydraulic).
WARNING: In the emergency programme, an impact is felt when
changing P/R, N/R and N/D.
Réception client.
Discuss with the customer, to find out all the malfunction symptoms.
Oil quality - Oil level.
Oil quality.
If the gearbox has suffered a serious fault resulting in a malfunction or
the destruction of a clutch, the oil will overheat and become
contaminated with impurities: the oil is said to be «burnt».
This is characterised by a black colour and the presence of an
unpleasant smell.
ESSENTIAL: The gearbox must be replaced.Oil level
(see corresponding operation).
An excessive oil level can result in the following consequences:
- Excessive heating of the oil.
- Oil leaks.
An insufficent level causes the destruction of the gearbox.
Top up the level of oil in the gearbox
(if necessary).
Check using a diagnostic tool.
Read the fault codes
(engine and gearbox).
Absence of fault codes.
Carry out parameter measures, actuator tests and a road test.
Presence of fault codes.
Carry out the necessary repairs.
Delete the fault codes.
Carry out a road test to check the repair and, if need be, modify the
gearbox ECU parameters
(this is essential after an initialisation of the
ECU).
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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS/PRECAUTIONS : AL4 AUTOMATIC GEARBOX
Procedure for initialising the automatic gearbox ECU
Downloading.
Updating the gearbox ECU by downloading:
- Follow the procedure using the diagnostic tool.
The downloading operation enables the automatic gearbox to be
updated, or adapted to an evolution of the engine ECU.
Before commencing the downloading, take the value of the oil usage
counter present in the automatic gearbox ECU.
After the downloading operation, carry out the following:
- A clearing of faults.
- An initialisation of the auto-adaptives.
- A writing of the value of the oil usage counter previously read.
- A road test.
ESSENTIAL: Every update of the automatic gearbox ECU should
be accompanied by an update of the engine ECU.Updating the value of the oil usage counter.
Using PROXIA.
Access to reading and recording of the oil counter is via the menu:
- «Configuration
(integrated circuit button)/Oil counter».
Adjustment of the oil counter value is done in incremental steps of
2750 units.
Using LEXIA.
Access to reading and recording of the oil counter is via the menu:
- «Oil counter».
Adjustment of the oil counter value is done by entering directly
the 5 figuresof the oil counter.
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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS/PRECAUTIONS: AL4 AUTOMATIC GEARBOX (SHIFT LOCK)
Engines: NFU - RFJ
C5FP0NZC
C5FP0P0C
SHIFT LOCK.
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:
- The gear lever cover (1)
(pull upwards).
- Unlock the «shift lock»by pressing at “a”with the aid of a screwdriver.
- Move the gear selection lever out of position «P».
C4
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CLUTCH
GEARBOX
TRANSMISSION
XSARARECOMMENDATIONS/PRECAUTIONS: AL4 AUTOMATIC GEARBOX (SHIFT LOCK)
Engines: NFU - RFN - RHZ
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:
- The cover(1).
- Unlock the«shift lock» (2) with the aid of a screwdriver.
- Move the gear selection lever out of position«P».
C5FP06ZC
C5FP06YC
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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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AIR
CONDITIONING
Checking the compressor oil level (continued)
2/ Slow leak.
Slow leaks do not lead to oil loss, therefore the same procedure should be followed as if there was no leak at all.
3/ Fast leak.
This type of leak causes both oil loss as well as allowing air to enter the system.
It is therefore necessary to:
- Replace the dehydrator.
- Drain as much oil as possible
(when replacing the faulty component).
Either before or during filling of the system with R 134.afluid, introduce 80 ccof NEWoil into the circuit.
When changing one of the following components, add the quantity stated:
- A drying bottle : 15 ccof compressor oil.
- A condenser or an evaporator : 20 ccof compressor oil.
- High pressure or low pressure pipework : 5 ccof compressor oil.
- A drying cartridge : 15 ccof compressor oil.
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
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