P0725

P0725 ENGINE SPEED





Description
The engine speed signal is transmitted from the ECM to the TCM with CAN communication line.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE

CAUTION:
Always drive vehicle at a safe speed.

NOTE:
If "DTC CONFIRMATION PROCEDURE" has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
With CONSULT-III
1. Start the engine.
2. Select "Data Monitor" in "TRANSMISSION".
3. Drive vehicle and maintain the following conditions for at least 10 consecutive seconds.





Is "P0725" detected?
YES - Go to P0725.
NO - Check intermittent incident. Intermittent Incident.




Diagnosis Procedure
1.CHECK DTC OF ECM
With CONSULT-III
1. Turn ignition switch ON.
2. Perform "Self Diagnostic Results" in "ENGINE".
Is the inspection result normal?
YES - GO TO 2.
NO - Check DTC detected item. Testing and Inspection.
2.CHECK DTC OF TCM
With CONSULT-III
Perform "Self Diagnostic Results" in "TRANSMISSION".
Is any DTC other than "P0725" detected?
YES - Check DTC detected item. Testing and Inspection.
NO - GO TO 3.
3.CHECK THE IGNITION SIGNAL CIRCUIT
With CONSULT-III
1. Start the engine.
2. Select "Data Monitor" in "TRANSMISSION".
3. Check for engine speed change corresponding to "ACCELE POSI" while monitoring "ENGINE SPEED".





Is the inspection result normal?
YES - GO TO 4.
NO - Check ignition signal circuit. Diagnosis Procedure.
4.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Main Power Supply and Ground Circuit.
Is the inspection result normal?
YES - Replace the control valve with TCM. Exploded View.
NO - Repair or replace damaged parts.