Rear Control Assembly

INSPECTION







1. INSPECT HEATER BLOWER SWITCH CONTINUITY

Switch continuity:
If continuity is not as specified, replace the switch.

Illumination circuit:
If continuity is not as specified, check the bulb.




2. Manual A/C:
INSPECT SELECT SWITCH OPERATION
a. Gradually turn the select switch from the "WARM" to "COOL" side, then check that the resistance between terminals 5 and 6 increases from 0 to 3.0 kohms
If operation is not as specified, replace the heater control base.







b. Check the continuity between terminals at each control knob position, as shown in the chart.
If continuity is not as specified replace the heater control base.

3. Auto A/C:
INSPECT BLOWER SWITCH OPERATION

4. Auto A/C:
INSPECT TEMPERATURE OPERATION