Troubleshooting Hints - HVAC System - Manual

TROUBLESHOOTING HINTS: (Perform before beginning System Diagnosis)

1. If the Blower Motor does not operate, check the HTR-A/C Fuse by visual inspection.

2. If the Blower Motor does not operate, check that ground G100 is clean and tight.

3. If the Blower Motor runs all of the time with the Ignition Switch in "OFF," replace the High Blower Relay.

4. If the Blower Motor runs with the Ignition Switch in "RUN" and the Mode Selector "OFF," replace the Mode Selector.

5. Replace the Mode Selector if the Blower Motor runs with the Ignition Switch in "RUN" and the Mode Selector in one but not all of the following modes: "MAX", "A/C", VENT BI-LEVEL, HEAT BLEND and DEFROST.

^ Refer to Blower Motor Service And Repair. Blower Motor

^ Refer to System Diagnosis. Testing and Inspection