Buick Regal: Diagnostic Information and Procedures

 Symptoms - Wiper/Washer Systems

NOTE: The following steps must be completed before using the symptom tables: 1. Perform Diagnostic System Check - Vehicle , in order to verify that all of the following conditions are true: No DTCs are set. The control modules can communicate via the serial data link. 2. Refer to Wiper/Washer

 DTC P0748, P0962, or P0963

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure: Refer to Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis: Refer to Strategy Based Diagnosis An overview of each diagnostic category can be found here: R