DescriptionIn the case of poor visibility, it is possibleto activate demisting of the rear windscreen and the door mirrors.The heating resistances for thesecomponents absorb a considerable amount of energy and they are thereforechecked and deactivated after a certain period: the defrosting istimed, according to the following logic, managed by the Body Computer:ignition ON (INT/A);activation signal from the relevant button, located onthe climate control system control panel.In these circumstances the resistances remainsupplied for a maximum of 20 minutes, then the power supply is cutoff.The power supply is also cut offunder the following conditions:ignition in OFF positiondeactivation signal from the relevant button;battery voltage below 8.5 Vafter the first 10 minutes operation, if the engine speedis below 1000 rpm.When the demister is on, a warning lighton the climate control system controls is activated.The climate control system ECU strategyis also operational in the following situations:'MAX-DEF' command from the climate control: the defrostingfunction is activated using the logic described previously (deactivatingthe MAX-DEF control only causes the heated rear windscreen to beswitched off if the command to turn it on came from the MAX-DEF;if, on the other hand, the command came from the heated rear windscreenbutton, it remains on;automatic defrosting at low outside temperatures: theheated rear windscreen is switched on automatically if the outsidetemperature, detected by the climate control system control unitvia the special sensor, is below 3 °C.The rearscreen demisting circuit is controlledby the heated rear windscreen relay and protected by a special fuselocated in the junction unit under the dashboard. This circuit iscontrolled via the strategy described above directly from the BodyComputer.The door mirror demisting circuit for isprotected by another fuse in the underfacia control unit and iscontrolled by the door control unit in accordance with a strategytransmitted via the CAN network from the Body Computer.
Functional description The heated rear windscreen relay T11,located in the junction unit under the dashboard B2, controls theengagement of the heated rear windscreen P55 demisting function throughthe line protected by fuse F40 The supply for the coil for relay T11 is'controlled by the ignition' (INT/A) and is energized by an earthsignal coming from the Body Computer M1 - pin 6 of connectorF; this signal is sent according to the complex control logic describedpreviously and, in particular, when a signal arrives - at pin 32of connector G of M11 - from the heated rear windscreen buttonpressed or MAX-DEF function on; This signal comes from the climate controlsystem control unit M70 which receives the feedback signal frompin 21 of connector H of M1 for switching on the LED. Activation of door mirror demister coils P60 and P61 is controlled by driver side door control unit M66 andpassenger door control unit M67 , connected via the CAN lineto Body Computer M1 . Control units M66 and M67 aresupplied at pin 11 of connector D - from a line protected by fuseF32 of underfacia control unit B2 On the basis of the complex strategy describedpreviously, the demister acivation control is sent via the CAN networkalso to the two door control units that control the coils in the mirrors P60 and P61 - from pins 7 and 9 of connector D of M66 and M67.
0Removing201Refitting212429579-7040A30Left instrument panellower TRIM - R.R.1. Disconnect the electrical connections (1a, 1b, 1c, 1d, 1e, 1f).2. Undo the left-threaded bolt securing the facia trim mount beam.3. Undo the bolts securing the body computer/junction unit.4. Move facia trim (4a) slightly and move body computer/junctionunit (4b) downwards.5. Disconnect the electrical connections (5a, 5b, 5c).6. Recover the body computer/junction unit.2045005
0Removing201Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit2045007
0Removing201Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit2045008
0Removing201Refitting211. Release the switch unit (1a), releasing the retainers (1b).2. Disconnect the electrical connections (2a (2b).3. Recover the switch unit.2045153
7005M12
0Removing201Refitting211. Release the switch holder trim (1a), releasing the retainers(1b).2. Disconnect the electrical connection.3. Keep the switch holder trim.2045154
0Removing201Refitting211. Unscrew the motor retaining bolt.2. Disconnect the electrical connections for the motor (2a, 2b).3. Remove the distribution motor (3a) or the mixture motor (3b)releasing the intake.2044976
0Removing201Refitting212429574-7040A18glove compartment onfacia - arrange1. Unscrew the motor retaining bolt.2. Disconnect the motor electrical connection.3. Remove the motor releasign the intake.2044977
5040D96
0Removing201Refitting212429574-7040A18glove compartment onfacia - arrange1. Unscrew the motor retaining bolt.2. Disconnect the motor electrical connection.3. Remove the motor releasign the intake.2044978
0Removing201Refitting211. Fit a plastic spatula (1a) between the reflector (1b) and thecasing (1c) and release the reflector retainers (1d) from the circularsupport (1e).2. Disconnect the electrical connections for the reflector defroster.3. Recover the reflector.2045161
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.