1. Disconnect the blower motor resistor connector.
2. Turn the ignition switch to the ON position.
3. Place the heater-A/C control in the VENT position.
4. Place the blower switch to the inoperative position.
5. Using a test light, backprobe between ground and the blower motor resistor connector terminal listed below:

•	I: Terminal B.

•	II: Terminal A.

•	III: Terminal D.

•	IIII: Terminal C.

Does the test light illuminate?

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Go to Step 2

Go to Step 3

Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement .

Is the repair complete?

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Go to HVAC Air Delivery System Check

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1. Turn the ignition switch to the OFF position.
2. Disconnect the HVAC control assembly connector C1.
3. Inspect for a poor connection, an open or a short to ground in the inoperative circuit listed below:

•	I: Terminal B.

•	II: Terminal A.

•	III: Terminal D.

•	IIII: Terminal C.

Is there a poor connector, an open, or a short to ground in the inoperative circuit tested?

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Go to Step 4

Go to Step 5

Locate and repair the fault in the circuit.

Is the repair complete?

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Go to HVAC Air Delivery System Check

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Replace the HVAC control assembly. Refer to Control Assembly Replacement .

Is the repair complete?

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Go to HVAC Air Delivery System Check

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