Engine Speed Signal Circuit Check

DESCRIPTION




The engine speed signal is sent from the ECM to the A/T control unit.

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.

With Consult




(1) Start engine.
(2) Select "SELF-DIAG RESULTS" mode with CONSULT
(3) Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 10 km/h (6 MPH), throttle opening greater than 1/8 of the full throttle position and driving for more than 10 seconds.

OR

With GST




(1) Start engine.
(2) Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 10 km/h (6 MPH), throttle opening greater than 1/8 of the full throttle position and driving for more than 10 seconds.
(3) Select "MODE 3" with GST.

OR

Without Scan Tools




(1) Start engine.
(2) Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 10 km/h (6 MPH), throttle opening greater than 1/8 of the full throttle position and driving for more than 10 seconds.
(3) Perform self-diagnosis.
Refer to How to Display and Read DTCs (Without Scan Tool).
Displaying & Reading Trouble Codes

DIAGNOSTIC PROCEDURE