Engine management system - siemens (all except NAS) (ABS Modulator): Description and operation
- Make
- Land Rover
- Model
- Freelander System Description and Operation (UK)
- Section
- Description and operation › ABS Modulator
Engine management system - siemens (all except NAS)ABS Modulator
ABS Modulator
The ABS modulator supplies a road speed signal to the cruise control ECU. The signal is supplied as a 12 volt square wave with a frequency of 8000 pulses/mile.
ECM
The ECM supplies a cruise control enable signal to the interface ECU when the vehicle is in a driving configuration suitable for cruise control operation. The ECM suspends the cruise control enable signal immediately the vehicle is not in the correct driving configuration or if an engine or gearbox fault occurs.
Parts & tools for this job For Land Rover Freelander
- TOOLOBD2 scanner with ABSSearch: OBD2 scanner ABS SRS
- TOOLDigital multimeterSearch: automotive digital multimeter
Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.