1. Turn the ignition switch ON.
2. Set the blower speed for 5th speed manually.
3. Measure voltage at terminal A7 and ground.

Does the voltage measure equal to the specified value?

0 ohms

Go to Step 3

Go to Go to Step 2

Replace the FATC controller.

Did you complete the repair?

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System OK

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1. Inspect the wiring harness associated with the blower high relay and terminals.
2. Repair any defects found.

Did you complete the repair?

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System OK

Go to Step 4

Replace the blower high relay.

Did you complete the repair?

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System OK

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