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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 P0751: Gear Ratio >> Test Description

Test Description

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

  1. 2. This step tests that the PCM commanded all shifts, that all shift solenoid valves responded correctly, but that all the shifts did not occur.
    Fig 1: Diagnostic Trouble Code (DTC P0751) Table (Step 1-2)
    G02112031Courtesy of GENERAL MOTORS CORP.
    Fig 2: Diagnostic Trouble Code (DTC P0751) Table (Step 3-5)
    G02112032Courtesy of GENERAL MOTORS CORP.
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