DTC DETECTION LOGIC ■ CAUTION ■

- Before TCM is replaced, the IP characteristics must be extracted, based on the information read out from the malfunctioning TCM. For reading out the IP characteristic data, refer to “CONSULT-III GT-R TCM CONFIGURATION MANUAL”.
- If no IP characteristic data can be extracted TCM and the transmission assembly must be replaced as a set.

DTC | Self-diagnosis name | DTC detection condition | Possible cause
P1725 | Receiving of malfunctioning engine speed signal | A DTC is set if abnormal engine speed signal is received from ECM. | ECM
*: A DTC is displayed when E, F, G or H in the DTC detection conditions is detected.

DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE OPERATION
If another “DTC CONFIRMATION PROCEDURE” is performed just before the next test, turn the ignition switch OFF and wait for 10 seconds or more, then perform the next test.
>>GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III

1. Start the engine.
2. Select “ENGINE SPEED” in “Data Monitor”.

Is the engine speed value 8191?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III

1. Start the engine.
2. Check “Self Diagnostic Result” of “TRANSMISSION”.

Without CONSULT-III

1. Start the engine.
2. Check self-diagnosis.

Is DTC P1725 detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>Go to Intermittent Incident.