Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Grande Punto Factory Service Manual (2005-2012)19 · Wiring diagrams and electrical functions
19 · Electrical

Code - functional description

Make
Fiat
Model
Grande Punto Factory Service Manual
Year
2005–2012
Section
Vehicle electronic systems › Code - functional description
Wiring diagrams and electrical functionsCode - functional description

CODE - FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

The CODE unit inside Body Computer M1 - connector G - is supplied directly from the battery from a line protected by maxifuse F2 of engine compartment control unit B1. It is ignition-operated (INT) at pin 32 of connector D. Pin 10 of connector H of M1 supplies a reference earth to the Body Computer.

The CODE aerial P91 is connected by means of two cables to the CODE unit M1, at pins 1 and 16 of connector A; the aerial is positioned coaxially on the ignition switch in order to detect the key being inserted and turned.

The key recognition communication and exchange of codes between Body Computer M1 and engine control unit M10 takes place via the C-CAN network.

The Body Computer M1 is connected via the CAN line to the instrument panel E50 to manage the "CODE failure" warning light.

Parts & tools for this job For 2005 Fiat Grande Punto

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