Operation CHARM: Car repair manuals for everyone.
Home >> Toyota >> 2000 >> Camry XLE Sedan V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Control Assembly >> Testing and Inspection >> Component Inspection
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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 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.




5. 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.




6. INSPECT REC INDICATOR OPERATION
Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1, then check that illumination light up.
If operation is not as specified, replace the switch.







7. INSPECT BLOWER SPEED CONTROL SWITCH CONTINUITY
If continuity is not as specified, replace the switch.







8. INSPECT MODE SWITCH CONTINUITY
If continuity is not as specified, replace the switch.







9. 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.

10. INSPECT REAR DEFOGGER SWITCH OPERATION
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