Test Description
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada. 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.
- 2. Tests the encoder circuit for a current malfunction.
- 3. Tests for an internal encoder malfunction which is present only in certain areas of the encoder sensor.
- 4. Tests for proper reference voltage at the encoder.
- 5. Tests the 5 V Reg. Encoder Circuit for a short to voltage, short to ground, an open or high resistance.
- 6. After determining that the reference voltage measured in Step 4 was correct, Step 6 reviews the reading originally measured in Step 3 was higher or lower than what should have been expected. This step helps determine whether the Encoder Signal circuit is being pulled high or low.
- 7. Tests the Encoder Signal circuit and the Encoder Return circuit for a short to voltage.
- 8. Helps determine a faulty encoder.
- 9. Tests the Encoder Signal circuit and the Encoder Return circuit for an open or a short to ground.