Vehicle Speed Sensor - Mitsubishi Stealth 1994 Import Service Manual

MULTIPORT FUEL INJECTION -

VEHICLE SPEED SENSOR

(reed switch)
voltage (V)
Terminal
Vehicle speed [km/h (mph)]
OPERATION
The vehicle speed sensor which is located in the speedometer converts the vehicle speed into a pulse
l
signal and inputs it to the engine control module, which then provides the idle speed control, etc. based
on this signal.
The vehicle speed sensor generates the vehicle speed signal by repeatedly opening and closing between
l
the voltage of about 5 V applied from the engine control module and ground using a reed switch.
TROUBLESHOOTING HINTS
If there is an open or short circuit in the vehicle speed sensor signal circuit, the engine may stall when the
vehicle is decelerated to stop.
HARNESS INSPECTION
I
Speedometer
1 6 2 4 5 1
Check the vehicle speed sensor out-
put circuit for continuity.
Engine control module connector:
l
Disconnected
Move the vehicle.
l
Engine control
module harness
side connector
On-Vehicle Inspection of MFI Components
Engine control module
I
connector
connector
module connector
Engine control
5 v
Vehicle speed sensor
64
STOP