ESP OPERATIONAL DESCRIPTION

2.0 TB, 2.4 20V

Operational Description

The braking system control unit M051 is supplied directly by the battery at pins 12 and 25 via the lines protected by fuses F02 and F04 of the engine compartment junction unit B001.

The supply controlled by the ignition (INT) reaches pin 23, by means of the line protected by fuse F42 of the junction unit under the dashboard B002.

The control unit is earthed at pins 11 and 24.

The four wheel sensors K070, K071, K075 and K076 send wheel speed signals to pins 19, 20, 7, 8, 21, 22, 9 and 10, respectively of the braking system control unit M051.

The speedometer signal signal destined for the Body Computer M001 (pin 7 connector A) is sent from pin 16; this signal is replicated at the CAN from pins 1 and 2 of M051.

The steering angle control unit M092 is supplied directly by the battery at pin 1 from the line protected by fuse F058 of the luggage compartment junction unit B045. The supply controlled by the ignition (INT) reaches pin 5, by means of the line protected by fuse F042 of the junction unit under the dashboard B002.

The control unit is connected to the C-CAN line by means of pins 7 and 3 (destined for the Body Computer M001 pins 36 and 37 connector B) and pins 4 and 8 (directed to communication with the slewing control unit M091, pins 2 and 3).

The slewing control unit M091 receives a supply exclusively controlled by the ignition (INT) at pin 1, also by means of the line protected by fuse F042 of the junction unit under the dashboard B002.

The control is interfaced with the C-CAN line via pins 2 and 3 through which information is exchanged with the control units dedicated to the VDC function.

The braking system control unit M051 is connected (from pins 1 and 2), via the C-CAN line, to the engine management control unit M010 (pins 12 and 29) for the possible management of the engine output power direct to the wheels. The engine management control unit is connected, in turn, from pins 45 and 61 connector A, to the Body Computer M001 (pins 32 and 33 connector B) in order to operate the warning light for the function and the failure message shown on the display, inside the instrument panel E050, by means of the CAN.

Pins 26 and 27 of connector A of the engine management control unit M010 receive the brake pedal pressed signals coming from the N.C. and N.A. contacts of the brake lights switch I030, respectively, with the supply controlled by the ignition (INT) from the lines protected by fuses F35 and F37 of the junction unit under the dashboard B002.

The engine management control unit M010 distributes the brake pedal pressed signal to the other control units installed on the vehicle via the C-CAN line, pins 12 and 29 connector A.

2.4 20V, 3.0 V6, 3.2 V6, 2.4 JTD 20V · Automatic Transmission

Operational Description

The braking control unt M051 is supplied directly by the battery (at pins 12 and 25) by the lines protected by fuses F02 and F04 of the engine compartment junction unit B001.

The supply controlled by the ignition (INT) reaches pin 23 via the line protected by fuse F42 of the junction unit under the dashboard B002.

The control unit is earthed at pins 11 and 24.

The four sensors K070, K071, K075 and K076 send the speed signals for each wheel to the braking control unit M051 at pins 19, 20, 7, 8, 21, 22, 9 and 10, respectively.

Pins 26 and 27 (on petrol versions) or 80 and 17 (on diesel versions) of connector A of the engine management control unit M010 receive the brake pedal pressed signals coming from the N.C. and N.A. contacts of the brake lights switch I030, respectively, with the supply controlled by the ignition (INT) from the lines protected by fuses F35 and F37 of the junction unit under the dashboard B002. The engine management control unit M010 distributes the brake pedal pressed signal to the other control units installed on the vehicle via the C-CAN line.

The discrete speedometer signal is sent, from pin 16 of the braking control unit M051, to the Body Computer M001, pin 7 connector A; this signal is also transmitted via the C-CAN from pins 1 and 2 of the braking control unit M051.

The braking system control unit M051 is connected (from pins 1 and 2), via the C-CAN line, to the engine management control unit M010. The latter is connected, via the C-CAN signals to the Body Computer M001 (pins 32 and 33 connector B) which communicates the management of the ABS warning light to the instrument panel E050 and, if the problems also involve the EBD function, the insufficient brake fluid and handbrake warning light.

Yaw control unit M091 receives power directly from the battery at pin 1 along a line protected by fuse F58 located on boot junction unit (CVB) B045. It is supplied, with steering angle control unit (NAS) M092 along a line protected by fuse F42 located in the under-dashboard junction unit B002.

Both are earthed at pin 6.

2.4 JTD 10V

Operational Description

The braking system control unit M051 is supplied directly by the battery at pins 12 and 25 via the lines protected by fuses F02 and F04 of the engine compartment junction unit B001.

The supply controlled by the ignition (INT) reaches pin 23, by means of the line protected by fuse F42 of the junction unit under the dashboard B002.

The control unit is earthed at pins 11 and 24.

The four wheel sensors K070, K071, K075 and K076 send wheel speed signals to pins 19, 20, 7, 8, 21, 22, 9 and 10, respectively of the braking system control unit M051.

The speedometer signal signal destined for the Body Computer M001 (pin 7 connector A) is sent from pin 16; this signal is replicated at the CAN from pins 1 and 2 of M051.

The steering angle control unit M092 is supplied directly by the battery at pin 1 from the line protected by fuse F058 of the luggage compartment junction unit B045. The supply controlled by the ignition (INT) reaches pin 5, by means of the line protected by fuse F042 of the junction unit under the dashboard B002.

The control unit is connected to the C-CAN line by means of pins 7 and 3 (destined for the Body Computer M001 pins 36 and 37 connector B) and pins 4 and 8 (directed to communication with the slewing control unit M091, pins 2 and 3).

The slewing control unit M091 receives a supply exclusively controlled by the ignition (INT) at pin 1, also by means of the line protected by fuse F042 of the junction unit under the dashboard B002.

The control is interfaced with the C-CAN line via pins 2 and 3 through which information is exchanged with the control units dedicated to the VDC function.

The braking system control unit M051 is connected (from pins 1 and 2), via the C-CAN line, to the engine management control unit M010 (pins 9 and 10) for the possible management of the engine output power direct to the wheels.

Pins 59 and 54 of connector A of the engine management control unit M010 receive the brake pedal pressed signals coming from the N.C. and N.A. contacts of the brake lights switch I030, respectively, with the supply controlled by the ignition (INT) from the lines protected by fuses F35 and F37 of the junction unit under the dashboard B002.

The engine management control unit M010 distributes the brake pedal pressed signal to the other control units installed on the vehicle via the C-CAN line, pins 28 and 29 connector A.

The engine management control unit is connected, in turn, from pins 28 and 29 connector A, to the Body Computer M001 (pins 32 and 33 connector B) in order to operate the warning light for the function and the failure message shown on the display, inside the instrument panel E050, by means of the CAN.