Trouble Code Diagnostic Procedures

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.

OVERALL FUNCTION CHECK
Use this procedure to check 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 Consult
(1) Jack up drive wheels.
(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

With GST
(1) Jack up drive wheels.
(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

USE THE DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

Without Scan Tools
(1) Start engine and warm it up sufficiently.
(2) Perform test drive for at least 10 seconds continuously under the following recommended condition.

Engine speed : 1,800 - 3,000 rpm
Intake manifold vacuum : -36.0 to -20.0 kPa (-270 to -150 mmHg, -10.63 to -5.91 inHg)
Gear position : OD 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 though Diagnostic Trouble Code is not detected, perform the above test drive at least one more time.

CIRCUIT DIAGRAM





DIAGNOSTIC PROCEDURE