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P1860 Diagnostic Trouble Code Discussion for June 2004

TCC PWM Solenoid Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1860
Help Request Posted
2002 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on VIN: 3GNFK16T62
P1860: TCM PWM Solenoid Circuit Malfunction. Hi guys, I have this Chevy that has this various DTCs, listed below. Transmission goes to a safe mode and moves in 3rd gear seems like. Check engine light on. Also customer says that the instrument gauges and speedometer would not work intermittently while dr...
June 01, 2004
2002 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNDT13552
P1860: TCC PWM Solenoid Circuit Malfunction. Heres the story.First vehicle came in with no tranny shifting(in default).Pulled codes found 5.Checked ATN Historys found common ignition switch problem. So I replaced switch and now codes are gone but now will not turn over or start And has no codes in ecm bu...
June 08, 2004