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Home >> Chevrolet >> 2006 >> Silverado 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 P0742: Low TCC Slip When The 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: DTC P0742 (1 Of 2)
G02424365Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0742 (2 Of 2)
G02424366Courtesy of GENERAL MOTORS CORP.
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