Operation CHARM: Car repair manuals for everyone.

Engine Speed Signal Circuit Check

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 kph (6 MPH), throttle opening greater than 1/8 of the full throttle position and driving for more than 10 seconds.

With Generic Scan Tool



1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 10 kph (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.

No Tools



1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 10 kph (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 "Self-Diagnostic Procedure Without Scan Tool".
Displaying & Reading Trouble Codes