Check Vehicle Speed Sensor
DIAGNOSTIC PROCEDURE CHART
| 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 faster than 20 km/h (12 MPH).
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 1 ← → 5 V? |
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 the speed sensor connector and the 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 the 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 the speed sensor connector and the engine ground.
Connector & terminal
(B17) No. 2 - Engine ground:
|
Is the resistance less than 10 Ω? |
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 the speed sensor harness connector and combination meter.
Connector & terminal
(B17) No. 1 - (i10) No. 12:
|
Is the resistance less than 10 Ω? |
Replace the vehicle speed sensor. |
Repair the wiring harness. |