Diagnostic Aids

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.

Inspect for the following items:

Inspect for intermittent conditions in the ISS circuit.
Inspect for intermittent conditions in the OSS circuit.
Ask the customer about possible overloading, exceeding the trailer towing limit, or towing in O/D.
Ensure that the current calibration is correct for the final drive ratio.
Ensure the wiring harness is not stretched too tightly or other components are pressing on the A/T inline 20-pin connector body. Also inspect for proper clearance to any other components and wiring.