P0725
P0725 ENGINE SPEED SIGNALDescription
The engine speed signal is sent from the ECM to the TCM with CAN communication line.
DTC Logic
DTC DETECTION LOGIC
P0725:
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 and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
1. CHECK DTC DETECTION
With CONSULT-III
1. Start the engine.
2. Select "DATA MONITOR".
3. Drive vehicle and maintain the following conditions for at least 10 consecutive seconds.
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI More than 1.0/8
SLCT LVR POSI: "D" position
With GST
Follow the procedure "With CONSULT-III".
Is "P0725 ENGINE SPEED SIG" detected?
YES >> Go to TM-131, "Diagnosis Procedure".
NO >> Check Intermittent incident. Refer to "Intermittent Incident". Testing and Inspection
Diagnosis Procedure
1. CHECK DTC OF ECM
With CONSULT-III
1. Turn ignition switch ON.
2. Perform "SELF-DIAG RESULTS" mode for "ENGINE". Refer to "CONSULT-III Function". Testing and Inspection
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check DTC detected item. Refer to "CONSULT-III Function". Testing and Inspection
2. CHECK DTC OF TCM
With CONSULT-III
1. Perform "SELF-DIAG RESULTS" mode for "TRANSMISSION". refer to "CONSULT-III Function (TRANSMISSION)".Diagnosis Description With Manufacturer's Scan Tool
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check DTC detected item. refer to "CONSULT-III Function (TRANSMISSION)".Diagnosis Description
3. CHECK THE IGNITION SIGNAL CIRCUIT
1. Start the engine.
2. Select "DATA MONITOR".
3. While monitoring "ENGINE SPEED", check for engine speed change corresponding to "ACCELE POSI".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Check ignition signal circuit. Refer to "Description". Testing and Inspection
4. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to "Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace the control valve with TCM.
NO >> Repair or replace damaged parts.