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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1626 (Automatic Transmission - 4L80-E - Service & Replacement) >> Diagnostic Information and Procedures >> DTC P0753: Open Or Short In The 1-2 SS Valve Circuit Or The 1-2 SS Valve >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 4. This step tests the function of the 1-2 SS valve and the internal wiring harness.
  2. 5. This step tests the power to the 1-2 SS valve from the ignition through the fuse.
  3. 7. This step tests the ability of the PCM and the wiring to control the ground circuit.
  4. 12. This step measures the resistance of the automatic transmission wiring harness assembly and the 1-2 SS valve.
Fig 1: DTC P0753 (Steps 1 - 4)
G01952195Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0753 (Steps 5 - 14)
G01952196Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0753 (Steps 15 - 20)
G01952197Courtesy of GENERAL MOTORS CORP.
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