Workshop Manuals Factory service & repair Alfa Romeo
01 Introduction and contents02 Vehicle characteristics and maintenance03 Engine – mechanical (Twin Spark)04 Fuel system (Twin Spark)05 Ignition, starting and charging (Twin Spark)06 Engine cooling (Twin Spark)07 Engine – mechanical (V6)08 Fuel system (V6)09 Ignition, starting and charging (V6)10 Engine cooling (V6)11 Electrical diagnosis – introduction and wiring diagram guide12 Electrical 01 – Power supply13 Electrical 02 – Fusebox14 Electrical 03 – Location of grounds15 Electrical 04 – Sidelights16 Electrical 05 – Main and dipped beam headlights17 Electrical 06 – Headlight alignment adjustment18 Electrical 07 – Rear and front fog lamps19 Electrical 08 – Direction indicators and hazard warning lights20 Electrical 09 – Stop lights21 Electrical 10 – Reversing lights22 Electrical 11 – Day lights23 Electrical 11A – Dim-dip device24 Electrical 12 – Interior lighting25 Electrical 13 – Instrument panel26 Electrical 14 – Check panel27 Electrical 15 – Provision for radio28 Electrical 15A – Radio system29 Electrical 16 – Cigar lighter30 Electrical 17 – Horns31 Electrical 18 – Windscreen wipers and washers, headlight washers32 Electrical 19 – Heated rear window and heated door mirrors33 Electrical 20 – Boot release control34 Electrical 21 – Door locking system35 Electrical 21A – Remote control door locking36 Electrical 21B – Anti-theft device37 Electrical 22 – Front power windows38 Electrical 22A – Front power windows (one-touch version)39 Electrical 23 – Rear power windows40 Electrical 24 – Adjustable heated seats41 Electrical 25 – Sunroof42 Electrical 26 – Heating, ventilation and air conditioning43 Electrical 27 – Starting and charging44 Electrical 28 – Engine cooling fan45 Electrical 29 – Motronic ignition and injection46 Electrical 29A – Alfa Romeo CODE immobiliser47 Electrical 30 – ABS48 Electrical 31 – Controlled damping suspension49 Electrical diagnosis – components key50 Clutch51 Gearbox and differential52 Axle shafts53 Front suspension54 Brakes55 Steering56 Rear suspension57 Wheels and tyres58 Electrical system59 Instrument panel and electronic instruments60 Bodywork61 Doors62 Boot and bonnet63 Interior trim64 External trim65 Heating and ventilation
Alfa Romeo 155 Factory Service Manual (1992-1998)36 · Electrical 21B – Anti-theft device
36 · Electrical

Anti-theft device

Make
Alfa Romeo
Model
155 Factory Service Manual
Year
1992–1998
Section
Anti-theft device › Anti-theft device
Electrical 21B – Anti-theft deviceAnti-theft device

ANTI-THEFT DEVICE

Each transmitter has a label with a four-figure number to protect the system from unauthorised programming (protected programming) which must be removed by the customer on delivery of the vehicle and kept in a safe place.
Transmitter diagram showing parts A, B, C, D. Part A is a luminous led, part B is a control button, part C is a luminous led, and part D is a memorising button.
Transmitter A - Luminous led B - Control button
Receiver diagram showing parts C and D. Part C is a luminous led, and part D is a memorising button.
Receiver C - Luminous led D - Memorising button SIMPLIFIED PROGRAMMING Simplified programming is for use when no remote controller data has previously been entered in the memory and the system needs to accept all transmitters. i.e. when the memory has not yet been "locked" by protected programming. In this programming mode as many codes as required are recognised, but only the last four are memorised. Proceed as follows
  1. press button D on the ceiling light: LED C flashes.
  2. NOTE: if the led does NOT flash, check that the alarm system is de-activated or
that the receiver on the ceiling lamp is correctly powered. 2. keeping the receiver button D pushed, press the transmitter button B, point it towards the receiver, but at least 20 cm. from it: the led of transmitter A, must flash no more than once; 3. LED C lights continuously indicating that the code has been memorised. at this point the operator can release button D to end programming. In the 3 sec. following the release of the button, it is possible to programme the country code to suit the country in which the car will be used. This is performed by pressing in quick succession the button of the receiver D, as shown in table 3. If the button is not pressed, the country code defaults to E.E.C. In the event of further memory storage operations, the last one remains in the memory. If the procedure has been carried out correctly, the LED on receiver C will flash 6 times, indicating that the code has been memorised on both the ceiling light receiver and in the control unit, if not, LED C will flash 18 times and it will be necessary to repeat the entire procedure starting from point 1 of simplified programming, after checking the correct connection between the control unit and the ceiling lamp Table 3: Country Codes
No. of pressesCountry
1ITALY
2GERMANY (*)
3FRANCE
4SWITZERLAND
5UNITED KINGDOM
6HOLLAND
7USA
8EEC
9 / 10Others
(*) Not used in this country, because in this country a specific control unit with a special operating logic is foreseen. As it is not easy to carry out this procedure in such a short time as 3 seconds, a different procedure for entering the Country code is recommended. To do this, proceed as follows:
  • open the bonnet;
  • turn the ignition key from MARCIA to STOP: within 15 seconds the bonnet button must be pressed 7 times in quick succession in less than 10 seconds; 5 beeps will indicate entry in MANUAL DIAGNOSIS (see FAULT-FINDING). During these 5 beeps press the bonnet switch once again. A last long beep will signal the acceptance of this new operation;
  • keep the button pressed throughout the duration of the long beep. The latter signals entry into the country programming mode, thus the possibility to enter the country code;
  • release the switch and press it within 10 seconds the number of times mentioned in table 3 to select the operating mode of the country required (each press will have a feedback beep).
N.B. To enter another remote control repeat the operations from point 1 of simplified programming, provided that the memory has been "locked" as described below. PROTECTED PROGRAMMING To prevent unauthorised persons from entering their own code, it is necessary to protect ("lock") the memory; this operation takes place automatically after 256 activations/deactivations of the alarm system, or by entering the password (locking the memory manually)

Parts & tools for this job For 1992 Alfa Romeo 155

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.