Citroën Picasso Xsara Technical Training Multiplexed BSI Manual

21
Chapter 2
Allocation of pins of the Brown 12-way MQS  connector of the main harness.
1
2
3
4
-   Input: On board ECU scroll request
-   Input: Navigation  recall last message request
-   For supplier use
1
2
3
4
5
6
7
8
-   Output: Headlamp washer relay control
Output: Sidelamp relay control (timed illumination)
9
10
11
12
5
6
-   Output:  Air conditioning  compressor authorisation request
to engine ECU
-   Input:  Air  conditioning  compressor  authorisation  through
engine ECU
7
8
9
- Analogue earth
- Input: Evaporator temperature information
- Input: Fuel flow information through engine ECU
1
2
3
4
5
6
7
8
9
10 - Input:  Coolant temperature information  through thermistor
(analogue)
10
11
12
11
12
- Input: Refrigerant pressure  safety information
- Input: Air conditioning  request
Allocation  of   pins  of   the  Blue   12-way  MQS   connector  of   the  passenger
compartment.
1
-   Output: Ultra sound  module supply
2 -   Input: Bonnet switch
-   Input/Output: Siren serial  connection
4 -   Output:
(dead)locking
-   Input: Alarm request through ultrasound  module
1
2
3
4
5
6
7
3
8
Close
electric
windows
request
when
9
10
5
1
1
6 -   Input: Volumetric suppression  request button
12
7
- 12 -  Spare
MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1
©
AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans  l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon
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