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Home >> Dodge and Ram >> 2011 >> Caliber Express >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P0842-Primary Oil Pressure Sensor Circuit Low >> Theory of Operation
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Theory of Operation

The Transmission Control Module (TCM) monitors the input voltage from the primary pulley pressure sensor. When the voltage is below a predetermined limit a DTC will set.

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