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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Automatic Transaxle Diagnosis - 4T65-E) >> Symptom Tests >> Transaxle Gearshift Lever Display Inoperative Or Displays Incorrect Range >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. 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  - HI values for all signals in all ranges indicates the ground circuit is OPEN.
  2. 3  - With the 20-pin connector disconnected, all signals should indicate HI.
  3. 5  - If one circuit affects the other, this indicates a short between the two circuits.
  4. 11  - This step tests the internal transmission harness. If no fault is found in the harness, the fault will be in the switch.

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