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Home >> Lexus >> 1997 >> LX 450 L6-4.5L (1FZ-FE) >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - HVAC >> Control Module HVAC >> Testing and Inspection >> System Amplifier
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System Amplifier

INSPECTION

INSPECT AMPLIFIER CIRCUIT

Terminal Identification:




Reference:




Reference:





a. Disconnect the connector from amplifier and inspect the connector on the wire harness side, as shown in the chart above.
If 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.

Terminal Identification:




Reference:





b. Connect the connector to amplifier and inspect the wire harness side connector from the back side, as shown in the chart above.
Test condition:
^ Ignition switch ON
If 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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