Code 0104

COMPONENT DESCRIPTION
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.





CONSULT REFERENCE VALUE IN DATA MONITOR MODE
- Specification data are reference values.





ECM TERMINALS AND REFERENCE VALUE

Remarks: Specification data are reference values, and are measured between each terminal and (25) (ECCS ground) with a voltmeter.





ON BOARD DIAGNOSIS LOGIC


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.

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

OR

With Generic Scan Tool
(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

Without Scan Tool
(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

Without Scan Tool
(1) Start engine and warm it up sufficiently.
(2) Perform test drive 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 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.

EC-VSS-01 Vehicle Speed Sensor (VSS) (DTC: P0500):

Vehicle Speed Sensor (VSS) (DTC: P0500):

DIAGNOSTIC PROCEDURE