Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check battery power and ignition power fuses (see schematic) by visual inspection.
2. If more than one function is out, check common power and ground inputs.
3. Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove GOOD in a continuity/voltage check. (Refer to General Troubleshooting Procedures.)
4. Check for proper installation of aftermarket electronic equipment which may effect the integrity of other systems. (Refer to General Troubleshooting Procedures.) Diagnostic Aids