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Home >> Toyota >> 2001 >> Sienna LE V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Control Module HVAC >> Testing and Inspection >> Air Conditioning Amplifier
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Air Conditioning Amplifier

AIR CONDITIONING AMPLIFIER (Manual A/C)

ON-VEHICLE INSPECTION




1. INSPECT A/C AMPLIFIER CIRCUIT
a. Disconnect the connector from amplifier and inspect the connector on wire harness side, as shown in the chart. Test conditions:
Turn ignition switch to ON




If the circuit is not as specified, inspect the circuits connected to other parts.




b. Connect the connector to the amplifier and inspect the wire harness side connector from the back side, as shown in the chart.
Test conditions:
- Running engine at idle speed
- Front A/C and rear A/C blower switches at "HI" position
- Front A/C and rear A/C temperature control dials at "Max. COOL" position
- A/C switch ON
- Set manifold gauge set




If the circuit is as specified, try to replace the amplifier with a new one.
If the circuit is not as specified, inspect the circuits connected to other parts.
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