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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Diagnostic Information and Procedures >> DTC P1860: Open Or Short In TCC PWM Solenoid Valve Circuit Or TCC PWM Solenoid Valve >> Diagnostic Aids

Diagnostic Aids

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DTC P1860 defaults to an elevated line pressure condition which may result in partial TCC apply. This may produce an idle surge that could stall the engine.

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