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Home >> Toyota >> 1995 >> Tercel Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Testing >> Code P1780 - Park/Neutral Position (PNP) Switch >> Possible causes are:

Possible causes are:

PNP switch short circuit.
PNP switch.
ECM.

NOTE: Toyota scan tester can be used to confirm PNP switch.

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