1. Connect battery positive voltage to air mix actuator terminal F (or G), and ground to terminal G (or F), and then verify that the air mix actuator operates as shown in the table.
Terminal
|
Air mix actuator operation
|
|
---|---|---|
F
|
G
|
|
B+
|
Ground
|
COLD→HOT (L.H.D.)
HOT→COLD (R.H.D.)
|
Ground
|
B+
|
HOT→COLD (L.H.D.)
COLD→HOT (R.H.D.)
|
2. Verify that the resistance between terminals C and E, and A and E matches the air mix actuator operation as shown in the graph.
L.H.D.
R.H.D.