Heater Control (Center Cluster Integration)

1. INSPECT A/C INDICATOR OPERATION.
Connect the positive (+) lead from the battery to terminal 3 and negative (-) lead to terminal 1, then check that the A/C indicator lights up while A/C switch is pressed.
If operation is not as specified, replace the center cluster switch.




2. INSPECT A/C SWITCH CONTINUITY.
Check the continuity exists between terminals 2 and 3 while switch is pressed.
If no continuity exists, replace the center cluster switch.




3. INSPECT BLOWER SWITCH CONTINUITY.




Switch continuity:
If continuity is not as specified, replace the center cluster switch.
Illumination circuit:
If continuity is not as specified, replace the bulb.