Code 0104

The vehicle speed sensor is installed in the transaxle. It contains a pulse generator which provides a vehicle speed signal to the speedometer. The speedometer then sends a signal to the ECM.




DIAGNOSTIC CHART




OVERALL FUNCTION CHECK
This procedure can be used for checking the overall function of the vehicle speed sensor circuit. During this check, a DTC might not be confirmed.




CONSULT
1) Jack up drive wheels.
2) Start engine.
3) Perform "VEHICLE SPEED SEN CKT" in "FUNCTION - TEST" mode with CONSULT.

OR




CONSULT
2) Start engine.
3) Read vehicle speed sensor signal in "DATA MONITOR" mode with CONSULT.
The vehicle speed on CONSULT should be able to exceed 10 km!h (6 MPH) when rotating wheels with suitable gear position,

OR




GST
2) Start engine.
3) Read vehicle speed sensor signal in "MODE 1" with - GST.
The vehicle speed on GST should be able to exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.

OR

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE
NO TOOLS
1) Start engine and warm it up sufficiently.
2) Perform test drive for at least 10 seconds continuously in the following recommended condition.

Engine speed:
1,400 - 2,400 rpm (A/T models) 1,700 - 2,400 rpm (M/T models)

Intake manifold vacuum:
-53.3 to 40.0 kPa
(-400 to -300 mmHg, -15.75 to -11.81 inHg) (A/T models)
-53.3 to -26.7 kPa
(-400 to -200 mmHg, -15.75 to -7.87 inHg) (M/T models)

Gear position:
Suitable position (except "N" or "P" position)

3) Stop the vehicle, turn ignition switch "OFF", wait for at least 5 seconds and then turn "ON".
4) Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.
Even if a Diagnostic Trouble Code is not detected, perform the above test drive at least one more time.




WIRING DIAGRAM