DEFINITION: Blower motor is always ON at any selected speed.

Were you sent here from the HVAC System Check (CJ2)?

--

Go to Step 2

Go to HVAC System Check (CJ2)

1. Disconnect the HVAC control head connector.
2. Turn the ignition switch to the ON position.

Is the blower motor on?

--

Go to Step 3

Go to Step 4

1. Turn the ignition switch to the OFF position.
2. Disconnect the blower motor control module connector.
3. Connect a DMM between terminal C of the blower motor control module connector and ground.
4. Leave the HVAC control head connector disconnected.
5. Turn the ignition switch to the ON position.
6. Measure the available voltage at terminal C of the blower motor control module connector.

Is the voltage within the specified values?

10.0-14.0V

Go to Step 6

Go to Step 5

Replace the HVAC control head .

Is the repair complete?

--

Go to HVAC System Check (CJ2)

--

Replace the blower motor control module.

Is the repair complete?

--

Go to HVAC System Check (CJ2)

--

Locate and repair a short to battery power in CKT 63.

Is the repair complete?

--

Go to HVAC System Check (CJ2)

--