Troubleshooting Hints - Blower Controls

- Try the following checks before doing the System Diagnosis:
1. Check AC 2 and CLUST Fuse by visual inspection
2. Check that Blower Motor connector and High and Low Blower Relays are firmly seated.
3. If Blower runs in LO only, check YEL(51) wire to terminal E of Blower Switch for an open. If wire and connections are OK, replace Blower Switch.
4. If Blower runs in LO or MEDIUM speeds with ignition OFF, check the following circuits for a short to voltage.
- YEL (51)
- PPL/WHT (73)
- LT BLU (72)

- Go to the Heater and A/C System Check for a guide to normal operation of entire system.
- Go to System Diagnosis for diagnostic tests of Blower Controls.