Component Tests and General Diagnostics

1. Check the PWR SEAT/PSD Circuit Breaker. If open, check circuit 340 for a short to ground.
2. If the rear height or front height switch does not function but the entire seat moves up and down, check for a poor connection. If OK, replace the suspected scat switch.
3. If the entire seat does not move up and down but the rear and front height functions operate properly, check for a poor connection. If OK, replace the suspected seat switch.
4. Check that G301 is clean and tight.
- Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove GOOD in a continuity/voltage check with the 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).
- Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. Refer to General Troubleshooting Procedures. Diagnostic Aids
- Refer to System Diagnosis.