MS-400.qxd
24/06/03
Cruise signals
It is absolutely imperative to install engine overspeed protection on vehicles with manual
transmission.
a. Cruise signal that is transferred via the engine control.
Voltage: between 1.5 and 24 volts, frequency: between 6 Hz and 8.5 kHz.
b. Electronic speedometer – on the rear of the instrument unit or as partial kit of the
instrument unit.
Voltage: between 1.5 and 24 volts, frequency: between 6 Hz and 8,5 kHz.
c. Cruise sensor – installed in the gearbox and generally having 3 cables.
Voltage: between 1.5 and 24 volts, frequency: between 6 Hz and 8,5 kHz.
d. Car radio – next to the radio if the vehicle is equipped with an ISO connection.
The cruise pulse is here in chamber 3, wiring pin 1 or 5.
Voltage: between 1.5 and 24 volts, frequency: between 6 Hz and 8.5 kHz.
Engine speed signals
a. Engine speed signal transferred via the engine control.
1.5-24 volts.
b. Electronic speedometer – on the rear of the instrument unit.
Voltage: between 1.5 and 24 volts, frequency: between 6 Hz and 488 Hz.
c. Terminal at the W+ pole of the generator, some generators are equipped with an
additional terminal. This terminal is not allocated on some vehicles, meaning a
connection to the generator is required. Voltage: 6-250 volts; frequency: between 6 Hz
and 488 Hz.
d. Negative terminal side of the ignition coil (terminal 1) – the yellow cable must be used
with this type of connection.
Voltage: 6-250 volts; frequency: between 6 Hz and 488 kHz.
Use a voltmeter to check the selected signal and proceed as follows: Connect the red
wire of the voltmeter to the cruise signal selected by you and the black wire of the
voltmeter to the vehicle earth. Now start driving the vehicle at the lowest speed at which
cruise control can be activated, and measure the the effectivevoltage of the signal. Ensure
that all digital voltmeters measure the effective voltage if they are in the alternating
voltage area.
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Cable harness
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