Important: Review the system operation in order to familiarize
yourself with the system functions. Refer to one of the following:
Visual/Physical Inspection
| • | Inspect the easily accessible or visible system components for obvious
damage or conditions which could cause the symptom. |
| • | The following could cause window fogging: |
| - | Maximum passenger capacity |
| - | Blocked body pressure relief valves |
| • | Inspect the air distribution system for causes of reduced air flow: |
| - | Obstructed or dirty passenger compartment air filter, if equipped |
| - | Blocked or damaged air inlet or outlet vents |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions.
Refer to
Testing for Intermittent Conditions and Poor Connections
in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom: