Component Inspection

INSPECTION




1. INSPECT A/C INDICATOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1.
b. Push the A/C button in and then check that the indicator lights up.

If operation is not as specified, replace the switch.




2. INSPECT DIMMING OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1 while press the switch.
b. Connect the positive (+) lead from battery to terminal 4 and then check that the indicator dims.

If operation is not as specified, replace the switch.







3. INSPECT A/C SWITCH CONTINUITY
Switch continuity:
If continuity is not as specified, replace the switch.

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







4. INSPECT HEATER BLOWER SWITCH CONTINUITY
If continuity is not as specified, replace the switch.







5. INSPECT HEATER SWITCH CONTINUITY
If continuity is not as specified, replace the switch.




6. INSPECT REC INDICATOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 7.
b. Push the Air Intake button and the check that the indicator lights up.

If operation is not as specified, replace the switch.




7. INSPECT DIMMING OPERATION
a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 7.
b. Push the Air Intake button, then the indicator lights up.
c. Connect the positive (+) lead from the battery to terminal 3 and then check that the indicator dims.

If operation is not as specified, replace the switch.







8. INSPECT AIR INTAKE SWITCH CIRCUIT
a. Connect the connectors to heater control assembly.
b. Inspect wire harness side connector from the back side, as shown in the chart.

If circuit is as specified, try replacing the air intake switch with a new one. If the circuit is not as specified, inspect the circuits connected to other parts.

9. INSPECT REAR DEFOGGER SWITCH OPERATION