Did you perform the Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check

Verify that the blower operates in high speed only.

Does the blower motor operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Turn the ignition to the OFF position.
2. Disconnect the electronic climate control (ECC) module electrical connector.

Is the blower operating at maximum speed?

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Go to Step 4

Go to Step 5

Replace the blower motor control module. Refer to Blower Motor Control Module Replacement .

Is the repair complete?

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Go to Step 5

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3