Important: The following steps must be completed before using the symptom tables:
- Perform the 
Diagnostic System Check - Vehicle
, in order to verify that all of the following conditions are true.
 
|    •  | The control modules can communicate via the serial data link. | 
 
- Review the system operation in order to familiarize yourself with the system functions. Refer to 
Wiper/Washer System Description and Operation
 .
 
Visual/Physical Inspection
|     •  | Inspect the washer fluid reservoir for the proper fluid level and condition. | 
 
|     •  | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. | 
 
|     •  | Inspect for aftermarket devices which could affect the operation of the Windshield Wiper/Washer System. | 
 
Intermittent
|     •  | If the wipers operate at low speed for approximately 3 seconds and then stop, the wiper motor park switch, or its signal circuit, may be malfunctioning.  | 
 
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom: