For 1990-2009 cars

## Blower Motor Inoperative in One Speed Only High Speed Operates Normally

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the entire HVAC blowers controls system check performed? | -- | Go to Step 2 | Go to HVAC Blower Controls System Check
2 |

1. Disconnect the blower resistor connector.
2. Place the ignition switch in the RUN position.
3. Place the blower switch in the inoperative position.
4. Connect a test light from the blower resistor connector inoperative terminal (LO=B, M1=A, M2=D) to ground on the harness connector.

Is the test light on?

--

Go to Step 3

Go to Step 4

3 | Replace the blower resistor. Refer to Blower Motor Resistor Replacement Is the repair complete? | -- | Go to Step 7 | --
4 | Backprobe with a test light between the HVAC control selector switch connector C1 of the inoperative terminal (LO=A, M1=C, M2=D) and ground. Is the test light on? |  | Go to Step 5 | Go to Step 6
5 | Repair the open in the inoperative circuit (LO=60, M1=63, M2=72). Is the repair complete? |  | Go to Step 7 | --
6 | Replace the HVAC control selector switch. Refer to Control Assembly Replacement Is the repair complete? |  | Go to Step 7 | --
7 |

1. Turn the ignition switch to the OFF position.
2. Reconnect all connectors/components disconnected.

Have all repairs been made?

Go to HVAC Blower Controls System Check

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