CITROEN C4 2004 Handbook page 320

AL4 AUTOMATIC GEARBOX CONTROLS
Engines: NFU - RFJ
The gear selection lever is guided by the shape of the step grille and by a recall spring which holds it to the left.
The gear control has 5 positions:
- «P» Parking (locking and immobilisation of the vehicle).w
- «R» Revrse gear.
- «N» Neutral.
- «D» Drive (use of the four forward gears in automatic and auto-adaptive operation).
- «M» Manual (this position allows the driver to choose his gears sequentially by pulling «M» or pushing «M+» on the gear selection lever).
NOTE: Only positions «P» or «N» authorise starting of the engine.
In position «M», the selection is by means of an electronic sensor situated close to the selection lever.
The variation of flux necessary to affect the sensor cells is obtained by a magnet on the lever opposite the cells, provoking the changes of status.
The information on this is transmitted to the gearbox ECU.
NOTE: On a vehicle equipped with «shift lock», it is necessary to switch on the ignition and press the brake pedal to release the selection lever
from position «P».
The two switches positioned on the gear control grille allow the driver to choose one of the following three driving programmes:
- Normal programme. The Normal programme operates in the absence of any other selection being made (auto-adaptive mode ; eco law).
- «a» Sport programme. The Sport programme permits a more dynamic driving style, with greater performances and acceleration.
- «b» Snow programme. The Snow programme facilitates moving off and traction on ground that has limited adhesion.
To revert to the Normal programme, you have to press a second time on the sport or snow switch.
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