2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 573
OK or NG
OK - Replace the control valve with TCM. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Valve Body/Service and Repair.
NG - Repair or replace damaged parts.
7AT RE7R01A
P0725 ENGINE SPEED
Description
The engine speed signal is transmitted from the ECM to the TCM via CAN communication line.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
1.PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" is previously conducted, always turn ignition switch OFF and wait at least 10 seconds before
performing the next test.
- GO TO 2.
2.CHECK DTC DETECTION
With CONSULT-III
1. Start the engine.
2. Select "SLCT LVR POSI" and "VHCL/S SE-A/T" in "Data Monitor" in "TRANSMISSION".
3. Drive vehicle and maintain the following conditions for 5 seconds or more.
SLCT LVR POSI : D
VHCL/S SE-A/T : More than 10 km/h (7 MPH)
4. Perform "Self Diagnostic Results" in "TRANSMISSION".
With GST
Follow the procedure "With CONSULT-III".
Is "P0725" detected?
YES - Go to See: P Code Charts/P0725/7AT RE7R01A.
NO - INSPECTION END
Diagnosis Procedure
1.CHECK DTC OF ECM
With CONSULT-III
1. Turn ignition switch ON.
2. Perform "Self Diagnostic Results" in "ENGINE".
Is any DTC detected?
YES - Check DTC detected item. See: Diagnostic Trouble Code Descriptions/DTC Index/EC.
NO - GO TO 2.
2.CHECK DTC OF TCM
With CONSULT-III
Perform "Self Diagnostic Results" in "TRANSMISSION".
Is any DTC detected?
YES - Check DTC detected item. See: Diagnostic Trouble Code Descriptions/DTC Index/TCM.
NO - GO TO 3.
3.CHECK INTERMITTENT INCIDENT
See: Testing and Inspection/Initial Inspection and Diagnostic Overview/How to Perform Efficient Diagnosis For an Electrical Incident.
Is the inspection result normal?
YES - Replace A/T assembly. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Removal and
Replacement/7AT RE7R01A/Transmission Assembly/Exploded View.
NO - Repair or replace damaged parts.