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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 834 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Diagnostic Information and Procedures >> DTC P0742: Low TCC slip When TCC Is Commanded OFF >> Test Description

Test Description

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The number below refers to the step number on the diagnostic table.

  1. 3. This step tests the mechanical state of the TCC. When the PCM commands the TCC solenoid OFF, the slip speed should increase.
    Fig 1: Diagnostic Trouble Code (DTC P0742) Table (Step 1-2)
    G02112024Courtesy of GENERAL MOTORS CORP.
    Fig 2: Diagnostic Trouble Code (DTC P0742) Table (Step 3-6)
    G02112025Courtesy of GENERAL MOTORS CORP.
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