Landcruiser AWD L6-4.5L (1FZ-FE) (1997)
Control Module HVAC: Testing and Inspection
INSPECT AMPLIFIER CIRCUIT
1. Disconnect the amplifier and inspect the connector on the wire harness side, as shown in the chart.
Test conditions:
-
Ignition switch ON
-
A/C switch ON
-
Temperature control lever MAX COOL
-
Blower control switch 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.
2. Connect the connector to A/C amplifier and inspect wire harness side connector from the back side. as shown in the chart.
Test conditions:
-
Ignition switch ON
-
A/C switch ON
-
Temperature control lever MAX COOL
-
Blower control switch HI
If circuit is not as specified. replace the amplifier.