4) Check that there is continuity between terminals “A” and “B”
when battery is connected to terminals “C” and “D”.
If found defective, replace.
5) Install relay and connect its coupler securely.
VEHICLE SPEED SENSOR (VSS)
INSPECTION
M/T VEHICLE
1) Remove combination meter from instrument panel.
2) Connect ohmmeter between vehicle speed sensor terminal (3)
and ground terminal (2) of combination meter and turn cable
joint (1) of speedometer with a screwdriver.
Ohmmeter indicator should move back and forth between conti-
nuity and infinity 4 times while cable joint is turned one full revo-
lution.
Replace speedometer, if check result is not satisfactory.
A/T VEHICLE
Vehicle speed sensor (1) itself can be checked on its resistance by
disconnecting connector.
NOTE:
Function of vehicle speed sensor can be checked by mea-
suring generated pulse as voltage.
For its measurement, use an analog type voltmeter while
spinning wheels on lift and with selector lever in D position.
ENGIINE AND EMISSION CONTROL SYSTEM
6E1-67
SH410
Vehicle speed sensor specifications
Coil resistance
100 – 300
Output voltage at 40 km/h (37 mile/h)
Approximately 1 V