Nissan Altima 2007-2012 Service Manual: P1715 Input speed sensor (primary speed sensor)

Description

ECM receives primary speed sensor signal from TCM via the CAN communication line. ECM uses this signal for engine control.

DTC Logic

DTC DETECTION LOGIC

NOTE: • If DTC P1715 is displayed with DTC UXXXX first perform the trouble diagnosis for DTC UXXXX. Refer to EC-1179, "DTC Logic".

• If DTC P1715 is displayed with DTC P0335, first perform the trouble diagnosis for DTC P0335. Refer to EC-1292, "DTC Logic".

• If DTC P1715 is displayed with DTC P0340, P0345, first perform the trouble diagnosis for DTC P0340, P0345. Refer to EC-1296, "DTC Logic".

• If DTC P1715 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to EC-1376, "DTC Logic".

• If DTC P1715 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to EC-1378, "DTC Logic".

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine.

2. Drive vehicle at a speed of more than 50 km/h (31 MPH) for at least 5 seconds.

3. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Go to EC-1424, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK DTC WITH TCM

Check DTC with TCM. Refer to TM-221, "DTC Index".

Is the inspection result normal? YES >> GO TO 2.

NO >> Perform trouble shooting relevant to DTC indicated.

2.REPLACE TCM

Replace TCM. Refer to TM-254, "Removal and Installation".

>> INSPECTION END

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