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Home >> Toyota >> 2014 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Automatic Transmission (U760E) - Diagnostic Codes) >> Automatic Transaxle System >> DTC P0791: Intermediate Shaft Speed Sensor "A" Circuit; DTC P0793: Intermediate Shaft Speed Sensor "A" [12/2013 - 11/2015] >> Monitor Description

Monitor Description

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The NT terminal of the ECM detects a revolution signal from the speed sensor (NT) (input RPM). The ECM calculates gear shifts by comparing the speed sensor (NT) with the speed sensor (NC).

While the vehicle is being driven in 2nd, 3rd, 4th or 5th gear with the shift lever in D, if the input shaft revolution is less than 300 rpm*1 although the output shaft revolution is more than 1000 rpm*2, the ECM interprets this as a fault, illuminates the MIL and stores a DTC.

*1: Pulse is not output or is irregularly output.

*2: The vehicle speed is 50 km/h (31 mph) or more.

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