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Home >> Toyota >> 2008 >> Matrix Base, Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - A246E >> Automatic Transaxle System >> DTC P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input); DTC P0850 Park / Neutral Switch Input Circuit >> Description
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DTC P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input); DTC P0850 Park / Neutral Switch Input Circuit: Description

The park/neutral position switch detects the shift lever position and sends signals to the ECM.

HINT:

If the vehicle is equipped with a TVIP system, confirm that there is no problem in the TVIP system before troubleshooting.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. DTC Detection Condition Trouble Area
P0705 2 or more switches are ON simultaneously for P, R, N, D, 2 and L positions (2-trip detection logic)
  • Short in park/neutral position switch circuit
  • Park/neutral position switch
  • ECM
P0850 Park/neutral position switch remains ON (P, N position) during driving under conditions (a) and (b) for 30 sec. (2-trip detection logic)
  1. Vehicle speed: 70 km/h (44 mph) or more
  2. Engine speed: 1,500 to 3,500 rpm
  • Open or short in park/neutral position switch circuit
  • Park/neutral position switch
  • ECM