Celica ST Liftback L4-2164cc 2.2L DOHC (5S-FE) MFI (1998)
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Control Module HVAC: Testing and Inspection
1. REMOVE LOWER FINISH PANEL
2. INSPECT AMPLIFIER CIRCUIT
a. Disconnect the connector and inspect the connector on the wire harness side, as shown in the chart.
Test conditions:
^ Ignition switch ON
^ Temperature control dial MAX COOL
^
Blower dial HI
If circuit is as specified, try replacing the amplifier with a new one. If the circuit is not as specified, inspect the circuits connected to other
parts.
b. Connect the connector to A/C amplifier and inspect wire harness side connector from the back side.
^ Ignition switch ON
^ Temperature control dial MAX COOL Blower dial HI
If circuit is as specified, try replacing the amplifier with a new one. If the circuit is not as specified, inspect the circuits connected to other
parts.
