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DTC: P0753 - 1-2 Shift Solenoid Circuit Electrical

Discussion in 'GM Powertrain' started by dsquared, Jul 5, 2010.

  1. dsquared

    dsquared Member

    I have a 97 K1500 with 237K miles and have had this code for over a year. I need to get this resolved as my inspection is overdue now. I replaced the transmission about 1.5 years ago with a Serta from the dealer so I went back there under warranty. They replaced the 2nd gear solenoid but the problem remains. They said it was probably the PCM, does this sound logical ? If so would a flash reprogram correct this? It must be electrical as the transmission works perfectly. Does anybody know what wiring harness or wires I should check? Thanks for all the great info here.

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