FRONT AIR MIX ACTUATOR INSPECTION

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Driver Side

1.  Connect battery positive voltage to front air mix actuator terminal F (or G), connect terminal G (or F) to ground, and then verify that the front air mix actuator operates as shown in the table.

•  If the operation condition is not normal, replace the front air mix actuator.
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Terminal

Front air mix actuator operation

F

G
B+
Ground
HOT → COLD
Ground
B+
COLD → HOT

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2.  Verify that the resistance between terminals A and E, and E and C matches the front air mix actuator operation as shown in the graph.

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•  If the operation condition and resistance are not normal, replace the front air mix actuator.


Passenger Side

1.  Connect battery positive voltage to front air mix actuator terminal F (or G), connect terminal G (or F) to ground, and then verify that the front air mix actuator operates as shown in the table.

•  If the operation condition is not normal, replace the front air mix actuator.
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L.H.D.

Terminal

Front air mix actuator operation

F

G
B+
Ground
COLD → HOT
Ground
B+
HOT → COLD

R.H.D.

Terminal

Front air mix actuator operation

F

G
B+
Ground
HOT → COLD
Ground
B+
COLD → HOT

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2.  Verify that the resistance between terminals A and E, and E and C matches the front air mix actuator operation as shown in the graph.

L.H.D.

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R.H.D.

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•  If the operation condition and resistance are not normal, replace the front air mix actuator.