Heater Blower Switch Test

1. Remove heater control, refer to A/C Heater Control Removal.

Heater Blower Switch Test:

2. Use a ohmmeter, and check continuity between the terminals of the switch as shown in the Heater Blower Test.
3. If switch fails any part of the continuity test, other then Pin 1 to Pin 7, replace heater control. If no continuity between Pin 1 to Pin 7 check the lamps, replace if necessary.