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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission Diagnosis - 4L80-E) >> Diagnostic Tests >> DTC P0752: 1-2 Shift Solenoid Valve - Performance >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers listed below refer to step numbers in the diagnostic procedure:

  1. 2

    This step tests the function of the TFP manual valve position switch.
  2. 3

    This step tests whether the scan tool commanded all the shifts, or whether all the shift solenoids responded correctly, but all of the correct shifts did not occur.