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Toyota
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1995
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Tercel Base, Automatic
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Repair and Diagnosis
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Engine Performance
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Engine Controls - Tests W/Codes
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Diagnostic Testing
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Code P1780 - Park/Neutral Position (PNP) Switch
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Possible causes are:
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Possible causes are:
PNP switch short circuit.
PNP switch.
ECM.
NOTE:
Toyota scan tester can be used to confirm PNP switch.