Inspect the fuse K1-K3 in the fuse block.

Is the fuse open?

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Go to Step 2

Go to Step 5

Inspect for a short to ground in circuit 40.

Is there a short to ground in circuit 40?

--

Go to Step 3

Go to Step 4

Repair a short to ground in circuit 40.

Is the repair complete?

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Go to HVAC Blower Controls System Check

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

Is the repair complete?

--

Go to HVAC Blower Controls System Check

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1. Disconnect the blower motor resistor.
2. Use a test light in order to backprobe between the blower motor resistor harness connector terminal G to ground.

Does the test light illuminate?

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Go to Step 6

Go to Step 10

1. Turn the ignition switch to the RUN position.
2. Place the heater-A/C control in the VENT position.
3. Place the blower switch in the IIIII position.
4. Using a test light, backprobe between the blower motor resistor harness connector terminal F and ground.

Does the test light illuminate?

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Go to Step 4

Go to Step 7

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 circuit 52.

Is there a poor connection, an open or a short to ground in circuit 52?

--

Go to Step 8

Go to Step 9

Repair the fault in circuit 52.

Is the repair complete?

--

Go to HVAC Blower Controls System Check

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

Is the repair complete?

--

Go to HVAC Blower Controls System Check

--

Repair a poor connection or an open in circuit 40.

Is the repair complete?

--

Go to HVAC Blower Controls System Check

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