LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Engine Control System Self Diagnostics) >> Diagnostic Tests >> DTC P1780: Park/Neutral Position Switch Circuit >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

WARNING: This page is about a different car, the 2003 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

This DTC uses two-trip detection logic. DTC is set when 2 or more switches are on simultaneously for "R", "N", "2" and "L" position or when ECM is receiving an ON signal from PNP switch when vehicle is being operated for more than 30 seconds at 44 MPH or more with engine speed of 1500-2500 RPM. Possible causes are: