Electrical system

Central locking

5steps
~30min
2/5difficulty
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The electric central locking system consists of four actuator motors integrated into the locks of the four doors.

The system is controlled by a control unit installed behind the glove box. When the front doors are locked or unlocked, or when the remote control is operated, the control unit causes the locks of all doors to be locked or unlocked simultaneously.

The electronic control unit has a safety circuit that interrupts the power supply to the actuator motors 15 to 35 seconds after a lock or unlock command.

This prevents the actuator motors from burning out if they are energised continuously, for example if a switch sticks.

Zentralverriegelung

The illustration shows the version without the theft warning system for models S - SX - GT.

3 - Fuse box, power circuits:

  1. 30 A fuse for ignition and fuel injection (petrol engine) or 60 A fuse for glow plugs (diesel)

  2. 40 A fuse for ignition switch

  3. 60 A fuse for optional equipment

  4. 80 A fuse, fuse and relay panel (central electrical system)

  5. Fuse and relay panel

10 - Battery earth on body

11 - Battery

22 - Earth on instrument panel, left

28 - Cable connection, instrument panel / rear door locking

35 - Cable connection, instrument panel / front door, left

36 - Cable connection, instrument panel / front door, right

42 - Earth on instrument panel, right

86 - Cable connection, longitudinal / rear door, left

87 - Cable connection, longitudinal / rear door, right

108 - Locking actuator, rear left / "theft warning system on" switch

109 - Locking actuator, rear right / "theft warning system on" switch

110 - Locking actuator, front left / "theft warning system on" switch

111 - Locking actuator, front right / "theft warning system on" switch

112 - Door locking control unit

113 - 20 A fuse for central locking

Test yourself

A quick Fiat Bravo quiz: every answer comes with an explanation and a link to the manual page.