how to fix the blower motor resistor in my Honda Accord 8th Generation (2008-2012)

Honda Accord 8th Generation (2008-2012)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

495 words

Problem Statement

Learn how to diagnose and fix the blower motor resistor in Honda Accord 2008-2012. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before starting work.

Symptoms

•Blower motor only works on high speed
•Blower motor does not operate at all
•HVAC system has inconsistent airflow
•A burning smell may come from the dashboard area
•Blower motor operates intermittently

Diagnostic Steps

1
Inspect the fuse associated with the blower motor to ensure it is intact.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the blower motor for proper operation by connecting it directly to a power source.
4
Measure the resistance of the blower motor resistor with a multimeter to determine if it is faulty.
5
Check the wiring connections to the blower motor and resistor for damage or corrosion.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Socket set
•Screwdriver set
•Multimeter
•OBD-II scanner

Parts Required

•New blower motor resistor

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the fuse associated with the blower motor to ensure it is intact.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the blower motor for proper operation by connecting it directly to a power source.
4
Measure the resistance of the blower motor resistor with a multimeter to determine if it is faulty.
5
Check the wiring connections to the blower motor and resistor for damage or corrosion.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the vehicle's battery to prevent electrical shock.
Ensure the vehicle is on a flat surface and the engine is cool.

2. Access the Blower Motor Resistor

Remove the passenger side lower dashboard cover by unscrewing or unclipping it.
Locate the blower motor resistor, which is typically found near the blower motor, behind the glove compartment.
Disconnect the electrical connector from the blower motor resistor.

3. Remove the Blower Motor Resistor

Unscrew the mounting screws holding the blower motor resistor in place (usually 2-3 screws).
Carefully pull the resistor out of its housing, taking care not to damage any surrounding components.

4. Install the New Resistor

Insert the new blower motor resistor into the housing.
Secure it with the mounting screws, tightening them to the manufacturer's specifications (usually around 7-10 ft-lbs).
Reconnect the electrical connector to the new blower motor resistor.

5. Reassemble Dashboard Components

Reinstall the passenger side lower dashboard cover.
Ensure all clips and screws are secured properly.

6. Reconnect Battery and Test

Reconnect the vehicle's battery.
Start the engine and test the blower motor at different speeds to confirm proper operation.