General
1. See section 8A-65 for diagnosis of Ventilation System controls.2. See section 8A-64 for diagnosis of Compressor Controls.
3. See section 8A-61 for diagnosis of the Rear Window Defogger Controls.
4. See section 8A- 117 for diagnosis of the Instrument Panel Dimming System.
5. CHECK for broken (or partially broken) wire inside of insulation which could cause system malfunction but prove GOOD in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
6. CHECK for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. See Troubleshooting Procedures, page 8A-4-0.