For 1990-2009 cars

#### Blower Motor Always ON

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 |

1. Install the scan tool?
2. Turn the ignition switch to the ON position.
3. Select BLOWER CONTROLLER VOLTAGE from the data list.
4. Press the OFF button on the heater & A/C control.

Does the scan tool display a voltage reading greater than 6 V?

--

Go to Step 2

Go to Step 3

2 | Repair the short to voltage on CKT FP812 (BLK/BLU). Did you complete the repair? | -- | Go to Step 4 | --
3 | Disconnect the blower motor ground (BRN wire) from the blower controller. Did the blower motor stop operating? | -- | Go to Step 5 | --
4 |

1. Reassemble any connectors/components removed in previous steps.
2. Turn the ignition switch to the ON position.
3. Select AUTO mode on the heater & A/C control.
4. Cycle through all the blower speeds.

Do all the blower speeds operate properly?

--

System OK

Go to Step 6

5 | Replace the blower controller. Did you complete the replacement? | -- | Go to Step 4 | --
6 | Replace the heater & A/C control. Refer to Heater & A/C Control Replacement. Did you complete the replacement? | -- | System OK | --