Troubleshooting

DTC P0793 INTERMEDIATE SHAFT SPEED SENSOR "A"

CIRCUIT DESCRIPTION

DTC Detecting Condition:

This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal (NC) with the input turbine speed sensor signal (NT), 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 Condition:

Typical Malfunction Thresholds:

Component Operating Range:

The NC terminal of ECM detects the revolving signal from speed sensor (NC) (output rpm). The ECM outputs a gearshift signal comparing the speed sensor (NT) with the speed sensor (NC).

While the vehicle is operating in the 2nd, 3rd or O/D gear position in the shift position of D, if the counter gear revolution is less than 300 rpm *1 although the output shaft revolution is more than 1,000 rpm *2, the ECM detects the trouble, illuminates the MIL and stores the DTC.

When the ECM detects this malfunction, the ECM performs the fail-safe function and outputs a gearshift signal based on the signal from the speed sensor (NT).
*1: Pulse is not output or is irregularly output.
*2: The vehicle speed is 50 km/h (31 mph) or more.

Wiring Diagram:

Step 1 - 3:

INSPECTION PROCEDURE