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Home › Chevrolet › 1994 › C3500 HD 6.5 F, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes - Electronic Transmission › Trouble Code Charts › Code 39, TCC Stuck Off › Notes

Code 39, TCC Stuck Off: Notes

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. Checks the mechanical status of the TCC. When PCM commands the TCC solenoid off, TCC slip speed should increase.
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