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 that 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 (6MPH), 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 10km/h (6MPH), throttle opening greater than 1/8 of the full throttle position and driving for more than 10 seconds.
(3) Select "MODE 7" with GST.

OR




No 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 transmission self-diagnosis.
Refer to How to Display and Read DTCs (Without Scan Tool).




DIAGNOSTIC PROCEDURE