Troubleshooting

DTC P0717 Input Speed Sensor "A" Circuit No Signal

CIRCUIT DESCRIPTION

DTC Detecting Condition:

This sensor detects the rotation speed of the direct clutch drum. By comparing the direct clutch speed signal with the vehicle speed sensor signal, the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure in response to various conditions, thus performing smooth gear shifting.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

The input speed sensor detects the transmission input shaft speed. The ECM determines the gear shift timing based on a comparison of the input speed sensor (input shaft speed) with the output speed sensor (output shaft speed).

When the output shaft speed is higher than the expected value and the input shaft speed is less than 300 rpm while running with the shift lever in the D position, the ECM will conclude that the input turbine speed sensor (NT) has a malfunction. The ECM will illuminate the MIL and set a DTC.

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE