Diagnostic Starting Point - Automatic Transmission: Symptoms
WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
When it has been determined through Diagnostic System Check - Vehicle in Vehicle DTC Information that no DTCs are present, begin symptom diagnosis by reviewing theTransmission Component and System Description . Reviewing Transmission Component and System Description information enables you to understand the operation of the system. This helps you determine if the condition described by the customer is normal or if a malfunction exists. If it is determined that a malfunction exists, identify the concern by referring to Symptoms - Automatic Transmission .Symptoms - Automatic Transmission provides common diagnostic categories which relate directly to diagnostic information or procedures.