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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 813 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Diagnostic Information and Procedures >> DTC P0753: 1-2 Shift Solenoid >> Test Description

Test Description

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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.
  3. 6. This step tests the ability of the PCM and the wiring to control the ground circuit.
  4. 8. This step measures the resistance of the automatic transmission wiring harness assembly and the 1-2 SS valve.
    Fig 1: Diagnostic Trouble Code (DTC P0753) Table (Step 1-4)
    G02112037Courtesy of GENERAL MOTORS CORP.
    Fig 2: Diagnostic Trouble Code (DTC P0753) Table (Step 5-12)
    G02112038Courtesy of GENERAL MOTORS CORP.
    Fig 3: Diagnostic Trouble Code (DTC P0753) Table (Step 13-20)
    G02112039Courtesy of GENERAL MOTORS CORP.
    Fig 4: Diagnostic Trouble Code (DTC P0753) Table (Step 21-22)
    G02112040Courtesy of GENERAL MOTORS CORP.
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