Test Description
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. 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.
- 3. This step tests the sensor circuitry in the high voltage range.
- 4. This step tests the sensor circuitry in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.
- 5. This step tests the 5-volt reference circuit of the yaw rate sensor/lateral accelerometer.