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EC-382 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P1715 INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) P1715 INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) Description INFOID:0000000009651233 ECM receives input speed sensor signal from TCM via the CAN communication line. ECM uses this signal for DTC Logic INFOID:0000000009651234 DTC DETECTION LOGIC NOTE: • If DTC P1715 is displayed with DTC P0340, P0345, first perform the trouble diagnosis for DTC P0340, P0345. Refer to . • If DTC P1715 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer • If DTC P1715 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct- 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 >> Proceed to . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000009651235 1. CHECK DTC WITH TCM Check DTC with TCM. Refer to . Is the inspection result normal? YES NO >> Perform trouble shooting relevant to DTC indicated. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P1715 Input speed sensor Input speed sensor signal is different from • Harness or connectors (The CAN communication line is open or short- • Harness or connectors (Input speed sensor circuit is open or shorted) • TCM |