|
|
ENGINE MANAGEMENT SYSTEM - V8 DESCRIPTION AND OPERATION 18-2-59 ECU operating parameters (connector connected and cruise control master switch on) Cruise control ECU The cruise control ECU controls the cruise control system. Most functions of the cruise control ECU are described under other components. Input/Output The cruise control ECU does not generate fault codes however the following system information is available via l Last switch off reason, which was due to unacceptable speed input. l Speed signal detected. l Below minimum speed threshold. l Current vehicle speed. l Recorded SET road speed. ECU operating parameters (connector connected) Pin No. Condition Volts Ohms 15 Road wheels stopped 0 15 Road wheels turning 0 - 12 Volts with a frequency of 8,000 pulses per mile 1.6 km) Pin No. Condition Volts Ohms 18 All conditions Less than 0.5 to earth |