how to diagnose my Honda Civic 9th Generation (2012-2015) blower motor not working

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery to ensure safety during repair.

2. Replace Blown Fuse

• Locate the fuse box, typically under the dashboard or in the engine compartment.
• Identify the blower motor fuse using the diagram on the fuse box cover.
• Remove the blown fuse using a fuse puller or pliers.
• Install a new fuse with the same amperage rating (usually 30A).

3. Inspect and Replace Blower Motor

• Remove the passenger side under-dash cover to access the blower motor.
• Disconnect the electrical connector from the blower motor.
• Unscrew the blower motor mounting screws and remove the motor from its housing.
• Install the new blower motor in reverse order, ensuring it is securely mounted and the connector is properly attached.

4. Check and Replace Blower Motor Resistor

• Locate the blower motor resistor, usually near the blower motor.
• Disconnect the electrical connector from the resistor.
• Remove the screws holding the resistor in place and take it out.
• Install the new blower motor resistor and reconnect the electrical plug.

5. Reconnect Battery and Test

• Reconnect the negative terminal of the battery.
• Turn the ignition on and test the blower motor at various speed settings.