Troubleshooting Hints

Try the following checks before performing other diagnosis.
If the Blower Motor does not operate at all
1. Check the HTR A/C Fuse by visual inspection.
2. Check that ground G105 is clean and tight (V6 VIN N).
3. Check that ground G112 is clean and tight (L4 VIN R).
4. Check that Blower Motor connectors and the Blower Relay are mated correctly and firmly seated.
5. If Blower runs all of the time with the Ignition Switch in OFF, replace Blower Relay.