Celica ST Ltd Ed Liftback L4-1762cc 1.8L DOHC MFI (1997)
Control Module HVAC: Testing and Inspection
ON-VEHICLE INSPECTION
1. REMOVE GLOVE COMPARTMENT DOOR
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, as shown.
Tester condition:
-
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.
