192004657 - E7018 PASSIVE ENTRY - FUNCTIONAL DESCRIPTION

Operational description

The Passive Entry control unit M64 is present if the ignition key/switch is missing and controls and regulates the entire vehicle access system.The control unit M64 is supplied - at pin 31 - by the line protected by fuse F63 of the luggage compartment control unit B45; pin 10 of M64 is earthed.Numerous aerials survey the exterior and interior of the vehicle, detecting the presence of the CID and sending signals to the control unit M64.

outside the vehicle:

  • right front door RF aerial for Passive Entry P95 connected to pins 14 and 35;
  • left front door RF aerial for Passive Entry P94 connected to pins 13 and 24;
  • right rear door RF aerial for Passive Entry P97 connected to pins 16 and 37;
  • left rear door RF aerial for Passive Entry P96 connected to pins 15 and 36;
  • rear bumper RF aerial for Passive Entry P98 connected to pins 11 and 32;

inside the vehicle:

  • RF aerial in dashboard for Passive Entry P78 connected to pins 41 and 42;
  • RF aerial on tunnel for Passive Entry P77 connected to pins 18 and 39;
  • RF aerial inside luggage compartment for Passive Entry P100
The door opening/closing signal coming from the RF aerial-receiver P93 is connected to pins 21 and 31 of connector B of M1; this door opening/closing signal is sent via the CAN to the Body Computer M1 and the control unit M64    See E3040 CENTRAL LOCKING.The Passive Entry RF aerial P99 is connected to pins 19 and 40 of M64; it manages the GARAGE function when the CID battery is run down.

There are switches on the four door handles that control the opening of the Passive Entry motors:

  • switch I22 on the right front door is connected to pins 4 and 5 of M64 and to control unit M67;
  • switch I23 on the left front door is connected to pins 2 and 3 of M64 and to control unit M66;
  • switch I24 on the left rear door is connected to pins 6 and 23 of M64 and to control unit M63;
  • switch I25 on the right front door is connected to pins 24 and 25 of M64 and to control unit M63;
  • the boot switch located in unit F52 is connected to pins 26 and 27 of M64 and to the Body Computer M1, pin 35 of connector I E (boot opening/closing signals from handle)
The locking/unlocking function for the Passive Entry motors: is controlled by the driver''s door control unit M66, the passenger door control unit M67 and the luggage compartment control unit (which manages the rear doors) M63; all of these are connected via the CAN line to the Body Computer M1.In accordance with the logic illustrated, the control unit M66 and M67 control the Passive Entry geared motors for the front door locks (driver''s side N50, passenger side N51) from pins 1 and 2 of connector D.The operation is controlled by special electronics M122 (driver''s door) and M123 (passenger door): these devices are supplied by the line for fuse F32 of the junction unit under the dashboard B2The control unit M63 controls the Passive Entry geared motors for the rear door locks (left N55 and right N56): from pins A6 and C4 of connector A, or A3 and C3 of connector B.The operation is controlled by special electronics M124 (left door) and M125 (right door): these devices are supplied by the line for fuse F36 of the junction unit under the dashboard B2 .