Emergency Starting Procedure; Error; Emergency Starting With Fiat Lancia Tester; Emergency Starting Procedure Using Accelerator Pedal - Fiat Brava Service Manual

Electrical system Bravo-Brava
Fiat CODE _
55.
Error
- ELECTRONIC KEY ERROR
When diagnosed, the error can be classified as PRESENT or INTERMITTENT.
Continuing the diagnosis, it is possible to distinguish whether the error is due to exchanged fuel injec­
tion control units or to a malfunction of the system's components.
Analysing the various screens displayed one after the other, you reach the "DO YOU WANT TO UN­
BLOCK THE ELECTRONIC KEY?" screen, which permits engine starting by entering the 5-digit code
(ELECTRONIC CODE) stated on the Code Card.
EMERGENCY STARTING PROCEDURE
The emergency starting procedure makes it possible to start the engine if there is a problem in the Fiat
CODE system (Fiat CODE control unit faulty, keys unusable, etc.).
The emergency procedure can only be activated if the engine control unit is in the "engine management
prohibited" status. This procedure can be carried out with the Fiat Lancia Tester or, for some versions,
also using the accelerator pedal. This operation is useful for starting the engine and driving the car to the
closest authorized workshop for repair of the fault.
Emergency starting with Fiat Lancia Tester
The procedure is activated by entering, on the Fiat Lancia Tester, the 5-digit code (ELECTRONIC
CODE) on the Code Card.
After an emergency start, when the ignition is switched off (STOP position), the fuel injection control
unit returns to the engine starting blocked condition, so to start the engine, the emergency starting pro­
cedure must be carried out again.
Emergency starting procedure using accelerator pedal
This procedure is applicable only to petrol cars with integrated fuel injection - ignition system and diesel
cars with electronic fuel injection pump.
By means of this procedure it is possible, by using the accelerator pedal, to transmit the electronic code
to the electronic fuel injection control unit which in turn detects it via the potentiometer located on the
throttle valve (petrol version or accelerator pedal (diesel version).
Carry out the following operations in sequence:
1. Read the 5-digit Electronic Code on the Code Card.
2. Switch the ignition on, press and hold down the accelerator pedal. The fuel injection system warn­
ing light comes on for 4 s, then goes out briefly (about 150 ms) and then comes on again for a fur­
ther 4 s.
3. When the warning light goes out, release the accelerator pedal.
4. When the accelerator pedal is released, the warning light starts flashing (flashing frequency 0.8 Hz
with duty - cycle 25% ON).
5. After a number of flashes equal to the first digit of the code read on the Code Card, fully depress and
hold down the accelerator pedal.
6. The fuel injection fault warning light comes on again for 4 s and then goes out (first digit ac­
quired).
7. When the warning light goes out, release the accelerator pedal.
8. When the accelerator pedal is released, the warning light again starts flashing as described in point
4.
9. After a number of flashes equal to the second digit of the code, press the accelerator pedal; the
warning light comes on for 4 s (second digit acquired), and then release the accelerator.
10. Repeat the operations in points 4,5,6 and 7 for the remaining digits of the electronic code.
11. When the accelerator pedal is released, after the last digit has been acquired, the warning light will
flash for 4 s at a frequency of 1.6 Hz with duty - cycle 50% indicating that the code has been accept­
ed, or will remain permanently lit if the code has been refused. If the code has been accepted, start
the engine, otherwise switch the ignition off (STOP position) and repeat the procedure.
74 Publication no. 506.670/01