GF80.50-D-2002HA Activate Antitheft Alarm System, Function

GF80.50-D-2002HA Activate Antitheft Alarm System, Function

- with CODE (FZ4) Anti-theft alarm system with interior protection and towing sensor
- with CODE (FY1) ATA 2 with interior protection, towing sensor and battery-operated horn

The anti-theft alarm system (ATA) is activated when the "Lock" transmit button the transmitter key (A8/1) is actuated, with the "Relocking" Function automatically after t = 40 s or on vehicles with CODE (513) Belgium via the "Automatic activation" function after t = 120 s, if the following message and the following status are present:
- The message "Circuit 15C OFF" is transmitted by the EIS control unit (N73) via Control Area Network bus, class B (interior compartment) (CAN-B).
- The non-actuated state of the closed ATA hood switch (S62) is read in via a discrete line.
- The non-actuated state of the closed front passenger door CL rotary tumbler switch (M14/5s1) is recognized and transmitted by the SAM control unit (N10) via CAN-B.
- The non-actuated state of the closed driver door CL rotary tumbler switch (M14/6s1) of all doors is recognized and transmitted by the SAM control unit via CAN-B.

The "Lock" message, "Relocking" message or the "Automatic activation" message (on vehicles with code (513) Belgium) is read in by the DBE control unit (N70) from the EIS control unit via CAN-B.

Relocking ATA system with code (FY1) ATA 2 with interior protection, tow-away protection and battery operated horn or with code (FZ4) Anti-theft alarm system with interior protection and tow-away protection or with code (FZ5) Anti-theft alarm system (ATA)
If the vehicle is unlocked with the "Unlock" transmit button on the transmitter key, and all prerequisites mentioned below are fulfilled, the vehicle is locked after t = 40 s (parameterizable) and simultaneously the ATA system is activated:
- A change in the status of the rotary tumbler switch from "CLOSED" to "OPEN" is not transmitted by the SAM control unit via CAN-B.
- A change in the status of the transmitted key from "Circuit 15C OFF" to "Circuit 15C ON" is not transmitted by the EIS control unit via CAN-B.
- A change in the status of the inside central locking button (N72/1s7) from "CLOSE" to "OPEN" is not transmitted by the DBE control unit (N72/1) via CAN-B.
- The message "CRASH_M (emergency opening threshold) is transmitted by the Lowline airbag control unit (N2/14), except code (SH6) Thoraxbag for driver (in backrest), except code (SH7) Thoraxbag for driver and front passenger (in backrest) or except code (SH9) Windowbag for driver and front passenger or Highline airbag control unit (N2/15), with code (SH6) Thoraxbag for driver (in backrest), with code (SH7) Thoraxbag for driver and front passenger (in backrest) or with code (SH9) Windowbag for driver and front passenger by the SAM control unit via CAN-B.

If the relocking function is interrupted, relocking is still accomplished at the conclusion when the specified conditions are present, if the vehicle is not locked with the remote control.

Relocking is not indicated visually, i.e. the turn signals are not actuated.

Automatic activation, with code (513) Belgium (parameterizable)
The ATA system is activated automatically after t = 120 s, if the following message and the status are present:
- Message "Circuit 15C OFF" is transmitted by the EIS control unit via CAN-B.
- A change in the status of the rotary tumbler switch from "CLOSED" to "OPEN" is not transmitted by the SAM control unit via CAN-B.

"Automatic activation" of the ATA system is interrupted when the "Lock" transmit button on the transmitter key is pressed and the ATA system is immediately activated.

Following activation, the DBE control unit performs a self-test of the ATA system, whereby a self-test of the control electronics in the DBE control unit is performed and the validity of the input signals (e.g. ATA hood switch and all CAN-B messages) is checked.

In addition, the DBE control unit checks the following components:
- Front interior protection sensor (B44) with integrated inclination sensor via discrete line.
- Center interior protection sensor (B44/1), on model 906.6/7, via front interior protection sensor with integrated inclination sensor.
- Rear interior protection sensor (B44/2), on model 906.6/7, via front interior protection sensor with integrated inclination sensor.
- Battery-operated horn (H3/1) via discrete line.
- Left heated rear window (R1/1) and right heated rear window (R1/2) of the rear-end doors, on model 906.6/7 with code (H22) Heated rear window or with code (W78) Window in liftgate or rear hinged door with wipe/wash system, available from SAM control unit via CAN-B.
- ATA hood switch via discrete line.

If an erroneous or implausible signal is recognized from any of the components listed above or an erroneous or implausible CAN message is recognized during the self-test of the control electronics in the OCP control unit, the component sending the erroneous or implausible CAN message is not evaluated after the ATA system is activated.
If an EEPROM error occurs during the self-test of the control electronics in the OCP control unit (e.g. control electronics in OCP control unit defective), the ATA system is not activated. The turn signal flashes once visually after t = 1.5 s to indicate that the ATA system is not activated. In addition, the LED in the inside central locking button is not actuated.
If the engine hood is opened when the ATA is activated and is not closed within t > 30 s, the ATA hood switch is not evaluated when the status of the engine hood changes.
If the engine hood is closed within t < 30 s, the ATA hood switch is evaluated when the status of the engine hood changes.

Activation of the ATA system is indicated visually by the turn signal flashing 3 times as well as the LED flashing in the inside central locking button.

When relocking, activation of the ATA system is also indicated visually, i.e. the LED in the inside central locking button is actuated.

After activation of the ATA system, the DBE control unit reads in the messages and the status of the following components and "monitors" them:
- EIS control unit via CAN-B.
- SAM control unit via CAN-B.
- DBE control unit via CAN-B.
- Hot water auxiliary heating control unit (N33/3), with code (H12) Auxiliary heater (hot water) or with CODE (HZ5) 10 kW warm water auxiliary heater with time via CAN-B.
- AAC control and operating unit (S98), via CAN-B.
- Auxiliary water heater 2 control unit (N33/2), with code (HZ9) Heater booster, diesel or with code (HZ5) 10 kW warm water auxiliary heater with timer via CAN-B.
- ATA hood switch via discrete line.
- Front passenger door CL rotary tumbler switch, available from SAM control unit via CAN-B.
- Driver door CL rotary tumbler switch, available from SAM control unit via CAN-B.
- Rear door CL rotary tumbler switch (M14/7s1), available from SAM control unit via CAN-B.
- Left door crewcab CL rotary tumbler switch (M14/8s1), on model 906.2, available from SAM control unit via CAN-B.
- Right door crewcab CL rotary tumbler switch (M14/9s1), on model 906.2, available from SAM control unit via CAN-B.
- Right sliding door CL rotary tumbler switch (M14/27s1), with code (T16) Right load compartment sliding door, available from SAM control unit via CAN-B
- Left sliding door CL rotary tumbler switch(M14/28s1), with code (T19) Left sliding door, available from SAM control unit via CAN-B.
- Front interior protection sensor with integrated inclination sensor, via discrete line.
- Center interior protection sensor, on model 906.6/7, via front interior protection sensor with integrated inclination sensor, via discrete line
- Rear interior protection sensor, on model 906.6/7 via front interior protection sensor with integrated inclination sensor, via discrete line
- Battery-operated horn, with code (FY1) ATA 2 with interior protection, tow-away protection and battery-operated horn, via discrete line.
- Left heated rear window and right heated rear window in rear-end doors, on model 906.6/7 with code (H22) Heated rear window or with code (W78) Window in liftgate or rear hinged door with wipe/wash system, available from SAM control unit via CAN-B.

Interior protection (IRS)
The IRS is activated automatically when the ATA system is activated after t = 40 s. The IRS is decreased if one of the following statuses or messages are present:
- Open window
- The non-actuated state of the closed side window in the driver door is not recognized and is transmitted by the driver door control unit (N69/1) via CAN-B.
- The non-actuated state of the closed side window in the front passenger door is not recognized and transmitted by the SAM control unit via CAN-B.
- The non-actuated state of the closed rear vent window, with code (W32) Electric vent windows in rear passenger compartment is not recognized and is transmitted by the SAM control unit via CAN-B.

- Open tilting/sliding roof (SR) with code (D27) Electric glass tilting/sliding roof.
- The non-actuated state of the closed SHD is not recognized by the DBE control unit.

- Open rear tilting/sliding door (SR-R) 906.6/7, with code (D24) Electric titling/sliding roof in passenger compartment
- The non-actuated state of the closed rear sliding roof is not recognized by the DBE control unit.

- Vehicle blower activated
- The message "Blower_ON (blower motor (M2) switched on)" is transmitted by the hot water auxiliary heating control unit, with code (H12) Auxiliary heater (warm water) or with code (HZ5) 10 kW warm water auxiliary heater with timer or AAC control and operating unit () via CAN-B.
- The message "ZHZ_ON (heater booster function switched on) is transmitted by the warm water auxiliary heater 2 control unit with code (HZ9) Heater booster, diesel or with code (HZ5) 10 kW warm water auxiliary heater with timer via CAN-B.

- Residual engine heat utilization system (REST) activated
- The message "REST_AKT (residual heat mode activated)" is transmitted by the AAC control and operating unit via CAN-B.

- Auxiliary heater (ZHE) activated, with code (H11) Warm air auxiliary heater
- The status of the auxiliary heater is not transmitted to the DBE control unit via CAN-B. The front interior protection sensor with integrated inclination sensor, center interior protection sensor (model 906.6/7) and rear interior protection sensor (model 906.6/7) recognizes the permanent air flow and decreases the sensitivity accordingly.

With the "Comfort closing" function the following statuses can still change:
- Open window
- The non-actuated state of the closed side window in the driver door is recognized and transmitted by the driver door control unit via CAN-B.
- The non-actuated state of the closed side window in the front passenger door is recognized and transmitted by the SAM control unit via CAN-B.
- The non-actuated state of the closed rear vent window in the passenger compartment is not recognized and transmitted by the SAM control unit via CAN-B.

- Open SR
- The non-actuated state of the closed SHD is recognized by the DBE control unit.

- Open rear sliding roof on model 906.6/7 with code (D24) Power tilting/sliding roof in passenger compartment
- The non-actuated state of the closed rear sliding roof is recognized by the DBE control unit.

The IRS is accomplished by the front interior protection sensor with integrated inclination sensor, center interior protection sensor (model 906.6/7) and rear interior protection sensor (model 906.6/7) using ultrasonic sensors, which react in the event of a break-in and activate an alarm.
The front interior protection sensor with integrated inclination sensor, center interior protection sensor (model 906.6/7) and rear interior protection sensor (model 906.6/7) must take the various loading conditions of the vehicle into consideration.
The IRS can be deactivated by pressing the interior protection switch (B44s1) for t = 200 ms with "Circuit 15 OFF". Deactivation is indicated by the LED flashing in the interior protection switch for t = 5 s.
Deactivation of the IRS is active until the interior protection button is reactuated or the next time the status of circuit 15 changes.

If the DBE control unit recognizes that the interior protection sensor button is actuated for longer than t = 20 s via the front interior protection sensor with integrated inclination sensor, the signal is ignored and an error is stored. An actuation signal is not issued directly nor sent to CAN-B.
When the interior protection switch is actuated again, the DBE control unit must previously recognize the non-actuated state of the interior protection switch for t > 1 s via the front interior protection sensor with integrated inclination sensor.

Tow-away protection (TS), inclination sensor
The TS is activated automatically when the ATA system is activated after t = 20 s.
The inclination sensor is integrated into the front interior protection sensor. When the TS is activated, the inclination sensor defines the zero level of the vehicle.

If the angle of the vehicle changes by ±0.8° (e.g. when towing or removing wheels), an alarm is actuated. When an alarm is triggered the current angle is taken over as the zero level.
The TS can be deactivated by pressing the tow-away protection button (B44s2) for t = 200 ms with "Circuit 15 OFF".
Deactivation is indicated by the LED flashing in the tow-away protection button for t = 5 s. Deactivation of the TS is active until the tow-away protection button is reactuated or the next time the status of circuit 15 changes.

If the DBE control unit recognizes that the tow-away protection button is actuated for longer than t = 20 s via the front interior protection sensor with integrated inclination sensor, the signal is ignored and an error is stored. An actuation signal is not issued directly nor sent to CAN-B.
When the tow-away protection button is actuated again, the DBE control unit must previously recognize the non-actuated state of the tow-away protection button for t > 1 s via the front interior protection sensor with integrated inclination sensor.