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The P1861 code for a Chrysler Pacifica typically indicates an issue with the Transmission Fluid Temperature (TFT) sensor or its circuit. To fix it, first inspect the wiring and connectors for damage or corrosion. If they appear fine, you may need to replace the TFT sensor itself. After any repairs, clear the code using an OBD-II scanner and monitor for reoccurrence.

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5mo ago

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How do you fix a p1861 problem code on a 2004 pacifica?

A P1861 code on a 2004 Pacifica indicates a problem with the Transmission Control Module (TCM) or the torque converter clutch (TCC) system. To fix it, start by checking the TCM connections and wiring for damage or corrosion. If the connections are fine, inspect the TCC solenoid and fluid levels, as low transmission fluid can cause issues. If these components are functioning properly, you may need to replace the TCM or have it reprogrammed.


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