Cruise control operation - ’t’ series

CRUISE CONTROL OPERATION - ’T’ SERIES

The cruise control is an electronically operated system using electro-mechanical devices to accurately maintain the car at a constant road speed without the use of the accelerator pedal. The driver selects the speed and the cruise control ECU will auomatically maintain any speed between 28 - 125 mph, 45 - 200 km/h.

WARNING: To avoid the risk of losing control of the car; do not use the cruise control on winding, snow covered or slippery roads, or in traffic conditions where a constant speed cannot be safely maintained. In these conditions and at any time the system is not being used, ensure the cruise control switch is OFF.

The cruise control ECU operates in response to signals sent to it from:

• The cruise ON/OFF switch.
• The ’SET +’ and ’RES’ (resume) switches.
• Vehicle speed sensor
• Brake pedal switch - incorporated in the stop lamp switch.
• Clutch pedal switch

When the system is switched ON, the indicator light in the cruise control switch is illuminated. The cruise control is set by accelerating the car in the normal manner to the required speed and then, press the ’SET +’ switch towards the steering wheel. The cruise control will now automatically maintain the set speed. The ECU stores the value of the road speed and actuates the pump in the pneumatic control unit to create a vacuum within the pneumatic actuator which actuates the throttle lever.

If the ’SET +’ switch is pressed (towards the steering wheel) and held, the speed will increase without the accelerator pedal being depressed. When the switch is released, the speed reached will be held in the memory and maintained. If the ’SET +’ switch is pressed momentarily, the speed will be increased slightly.

WARNING: The cruise control directly actuates the accelerator pedal. DO NOT rest your foot under the accelerator pedal as it may become trapped.

The cruise control will disengage, without losing the speed held in the memory when:

• The brake pedal is depressed.
• The clutch pedal is depressed.
• The RES (resume) switch is pressed.

To re-engage cruise control, press the ’RES’ switch. Provided the speed is above 28 mph, 45 km/h the control will return the car to the previously set speed.

If it is necessary to use the accelerator pedal to carry out an overtaking manoeuvre, the cruise control will return the car to the previously set speed when the pedal is released.

The speed in the memory will be cancelled when:

• The cruise master switch is switched OFF.
• The engine is switched OFF.