GF80.50-D-3024H Switch Off Tow-Away Protection, Function

GF80.50-D-3024H Switch Off Tow-Away Protection, 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

Function requirements:
- "Circuit 15 OFF" is transmitted by the EIS control unit (N73) via Control Area Network bus, class B (interior compartment) (CAN-B).
- Press tow-away button (B44s2) for longer than t = 200 ms.

The towing sensor can be deactivated by pressing the towing sensor button on the interior protection sensor, front (B44) with integrated inclination sensor. The front interior protection sensor with integrated inclination sensor reads in the signals from the tow-away protection button and relays the signals to the OCP control unit (N70) via discrete lines.

The OCP control unit reads in the signal "Deactivate tow-away protection" and no longer evaluates the signals from the front interior protection sensor with integrated inclination sensor. No alarm is triggered if the vehicle is raised.
Deactivation of the TS is indicated by illumination of the light emitting diode (LED) in the towing sensor 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.

The interior protection sensor, front with integrated inclination sensor still remains active, i.e. evaluation is still accomplished for interior protection (IRS).

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.