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Home >> Scion >> 2014 >> iQ Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> CVT (Diagnostic Codes) >> Continuously Variable Transaxle System >> DTC P0720: Output Speed Sensor Circuit; DTC P0722: Output Speed Sensor Circuit No Signal [05/2013 - ] >> Description

DTC P0720: Output Speed Sensor Circuit; DTC P0722: Output Speed Sensor Circuit No Signal [05/2013 - ]: Description

The ECM receives a signal from the secondary pulley speed sensor (transmission revolution sensor (NOUT)) installed in the continuously variable transaxle and determines the output shaft speed in order to control the gear ratio.

The transmission revolution sensor (NOUT) detects the continuously variable transaxle output shaft speed and sends it to the ECM.

DTC No. DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
 Trouble Area
P0720
  1. Transmission revolution (NOUT) signal malfunction is not detected
  2. Transmission revolution sensor (NOUT) input voltage is less than 0.1 V, or more than 1.9 V
  3. 2 seconds
  4. 1-trip detection logic
  • Wire harness or connector
  • Transmission revolution sensor (NOUT)
  • ECM
P0722
  1. Driving with the shift lever in D, output shaft speed of 300 rpm or more, and no error detected from the park/ neutral switch
  2. Transmission revolution sensor (NOUT) Speed: Less than 300 rpm
  3. 2 seconds
  4. 1-trip detection logic
  • Wire harness or connector
  • Transmission revolution sensor (NOUT)
  • ECM
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