AIR MIX ACTUATOR INSPECTION

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AIR MIX ACTUATOR INSPECTION

B3E074061415W02

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

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

Terminal | Air mix actuator operation
--- | ---
D | F
B+ | Ground | HOT→COLD
Ground | B+ | COLD→HOT

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

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