Check Vehicle Speed Sensor

CHECKING VEHICLE SPEED SENSOR

Step	Check	Yes	No
1 CHECK VEHICLE SPEED SENSOR. Lift-up the vehicle and support it with rigid racks. Remove the combination meter with harness connector. Drive the vehicle at a speed greater than 20 km/h(12MPH). WARNING: Be careful not to get caught in the running wheels. Measure the voltage between combination meter connector and chassis ground. Connector & terminal (i10) No. 12 (+) - Chassis ground (-):	Is the voltage 1V > 5V?	Check the speedometer. < Ref. to REMOVAL , Speedometer. >	Go to step 2 .
2 CHECK VEHICLE SPEED SENSOR POWER SUPPLY. Turn the ignition switch to OFF. Disconnect the vehicle speed sensor harness connector. Turn the ignition switch to ON. Measure the voltage between vehicle speed sensor connector and engine ground. Connector & terminal (B17) No. 3 (+) - Engine ground (-):	Is the voltage more than 10 V?	Go to step 3 .	Check the harness for open or short between ignition switch and vehicle speed sensor.
3 CHECK HARNESS BETWEEN VEHICLE SPEED SENSOR AND ENGINE GROUND. Turn the ignition switch to OFF. Measure the resistance between vehicle speed sensor connector and engine ground. Connector & terminal (B17) No. 2 - Engine ground:	Is the resistance less than 10 ohm?	Go to step 4 .	Repair the wiring harness.
4 CHECK HARNESS BETWEEN VEHICLE SPEED SENSOR AND COMBINATION METER. Disconnect the connector from combination meter. Measure the resistance between vehicle speed sensor harness connector and combination meter harness connector. Connector & terminal (B17) No. 1 - (i10) No. 12:	Is the resistance less than 10 ohm?	Replace the vehicle speed sensor.	Repair the wiring harness.