General Information

Automatic Transaxle
P0791 Middle Speed Sensor Circuit No Signal - General Information

Component Location





General Description

Middle speed sensor is one body and installed in transmission. It's used hall sensor of an electric current type, and current is changed by magnetic variation. Each sensors are composite 2 pins and PCM/TCM supplied power to sensor and controled by PCM/TCM.

DTC Description

This code is set when vehicle speed is above 20km/h but middle speed signal is not detected by middle speed sensor.

DTC Detecting Condition





Specification

- Middle speed sensor
1. Under 1000RPM, Output waveform is 60 or 120µs(ON time) by shaft of rotation
2. Over 1000RPM, Output waveform is 30µs(ON time)

Diagnostic Circuit Diagram