Flow of Diagnosis

1. Before undertaking actual checks, verify the complaint.
2. Start your diagnosis by looking for "conventional" problems first. These may include, air leaks in the booster lines, lack of brake fluid and other problems of this nature.
3. Most intermittent problems are caused by poor electric connections or faulty wiring. Careful checking of suspicious circuits may help prevent the replacement of good parts.
4. A visual check only may not find the cause of the problems, so a road test should be performed. Testing and Inspection