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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Automatic Transmission - Diagnosis) >> Diagnostic Tests >> DTC P1783: Transfer Neutral Switch >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Toyota Land Cruiser, 2002 Lexus LX 470, 2001 Toyota Land Cruiser, and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

The ECM receive signals TFN from the indicator switch (NEUTRAL switch). DTC is set while driving under the following conditions for 30 seconds or more: The indicator switch (NEUTRAL switch) is ON and vehicle speed is 16 MPH or more and the transfer shift position is "H". Possible causes are: