Fiat 1996 Brava Service Manual page 784

Bravo-Brava Electrical equipment
98 range Services control unit
CENTRAL DOOR LOCKING/OPENING
Software in the electronic control unit runs a series of safety checks:
- It reads switch position at the end of each operation. If this position does not agree with the action
carried out, a repulsion takes place. Everything is as normal if it agrees with the action carried out. Re­
pulsion takes place after a locking manoeuvre and after a release manoeuvre.
- If the motors are commanded to lock and the operation is not carried out together, i.e. the commands
do not agree or a door is open (in the case of the lock manoeuvre alone, the circuit carries out an op­
posite manoevre to attempt to realign the lock;
- if the control unit records several consecutive, complete lock/unlock manoeuvres, the system cuts in to
operate the manoeuvre limiter. The system therefore remains inhibited in released position for 30 sec­
onds.
- the system cuts off operation if battery voltage drops below 9 V.
DOOR OPENING/CLOSURE REMOTE C O N ­
TROL
NOTE The remote control, not available as stan­
dard, is built into the ignition key.
Whenever the control button (1) is pressed, the
sender unit sends a radio code with action radius
of about 10 metres to the receiver in the courtesy
light.
1. Control button
2. Repeater led
3. Password code card
4. Transponder (used by invisible Fiat CODE)
4PA83HL01
NOTE Each key with remote control unit has a plate (3) with a 4-figure password to protect against un­
authorised programming (protected programming). The Dealer must remove the plate at the time
of sale and place it on the back of the Code Card (refer to the Fiat CODE chapter). If the plates
are lost, the remote control can still be used but NEW REMOTE CONTROL UNITS cannot be
stored (see next page), if this is necessary, replace the receiver on the courtesy light and the keys
(to obtain the plates).
RECEIVER
The receiver, built into the courtesy light, is an electronic device that receives a signal from the remote
control. This performs door opening/closure functions. Each receiver may be programmed with one or
more remote controls (up to eight) and store the relevant codes. A green led (1) on the receiver lights up
when the signal is received, while a button (2) is used to store the code. When fitted in the cars, receiv­
ers contain a UNIVERSAL code that is used to carry out end of production line tests using a remote con­
trol unit with a universal code. When the car is delivered to the customer, the receiver must be personal­
ised by replacing the UNIVERSAL code with codes for remote control units provided with the car (see
PROGRAMMING on the next page).
Copyright Fiat Auto
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