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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L60-E/4L65-E (Service & Replacement) >> Diagnostic Information and Procedures >> DTC P0742: Low TCC Slip When The TCC Is Commanded OFF >> Test Description

Test Description

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

  1. 2. This step tests the hydraulic state of the TCC. When the PCM commands the TCC solenoid valve OFF, the slip speed should increase.
Fig 1: DTC P0742 Diagnosis
G01565713Courtesy of GENERAL MOTORS CORP.
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