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Clutch, Gearbox, Transmission -> Procedure for Initialisation of the Automatic Gearbox ECU for Your Citroen C6 4 Door First Generation (2005-2012)

PROCEDURE FOR INITIALISATION OF THE AUTOMATIC GEARBOX ECU  
NOTE: For all these operations, follow the procedure in the diagnostic tool.  
Replacement of the automatic gearbox without replacement of the ECU.  
Carry out the following operations:  
- Initialisation of the neutral position of the gear selection lever position sensor.  
- Initialisation of the adaptation of the oil pressure regulators and electrovalves.  
- Initialisation of the autoadaptatives.  
- Resetting the oil usage counter to zero.  
Replacement of the automatic gearbox ECU.  
Carry out the following operations:  
- Read the value of the gearbox oil usage counter from the old ECU.  
- Write the value of the oil usage counter into the new ECU.  
- Initialisation of the neutral position of the gear selection lever position sensor.  
- Initialisation of the adaptation of the oil pressure regulators and electrovalves.  
- Initialisation of the autoadaptatives.  
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PROCEDURE FOR INITIALISATION OF THE AUTOMATIC GEARBOX ECU  
Replacement of the automatic gearbox and of the automatic gearbox ECU.  
Carry out the following operations:  
- Initialisation of the autoadaptatives.  
- Resetting the oil usage counter to zero.  
- Initialisation of the adaptation of the oil pressure regulators and electrovalves.  
Draining of the automatic gearbox oil.  
Carry out the following operations:  
- Initialisation of the adaptation of the oil pressure regulators and electrovalves.  
- Resetting the oil usage counter to zero.  
NOTE: If downloading the automatic gearbox ECU, there is no specific operation, follow the procedure in the diagnostic tool.  
IMPERATIVE: For a certain time, having carried out an ECU initialisation procedure, one may obtain gear changing quality that is more  
or less good (adaptation of the ECU parameters to the gearbox). To improve the quality, it is necessary to perform a road test with  
frequent changing through the gears (auto-adaptive laws).  
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