how to fix Honda Accord 9th Generation (2013-2017) power locks not working

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

620 words

Problem Statement

Learn how to diagnose and fix power locks not working in Honda Accord 9th Generation (2013-2017). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks or shorts.

Symptoms

•Power lock switch does not respond when pressed
•Key fob is unresponsive or does not unlock/lock doors
•No sound from the locking mechanism when attempting to activate
•Indicator lights on the dashboard do not flash when pressing the lock button
•Manual locking mechanism works, but power locking does not

Diagnostic Steps

1
Check the battery of the key fob for proper voltage and replace if necessary.
2
Use an OBD-II scanner to check for any related error codes in the Body Control Module (BCM).
3
Inspect the power lock fuse in the fuse box and replace if blown.
4
Test the power lock switch for continuity using a multimeter.
5
Inspect the wiring harness and connectors at the driver's door for any signs of damage or corrosion.
6
Check the operation of the door lock actuators by applying direct power to them.

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

•OBD-II scanner
•Multimeter
•Socket set
•Trim removal tools
•Wire cutters and splices
•Jumper wires

Parts Required

•Power lock switch (if faulty)
•Power lock actuator (if faulty)
•Replacement fuse (if blown)

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Symptoms

•Power lock switch does not respond when pressed

•Key fob is unresponsive or does not unlock/lock doors

•No sound from the locking mechanism when attempting to activate

•Indicator lights on the dashboard do not flash when pressing the lock button

•Manual locking mechanism works, but power locking does not

Diagnostic Steps

1
Check the battery of the key fob for proper voltage and replace if necessary.
2
Use an OBD-II scanner to check for any related error codes in the Body Control Module (BCM).
3
Inspect the power lock fuse in the fuse box and replace if blown.
4
Test the power lock switch for continuity using a multimeter.
5
Inspect the wiring harness and connectors at the driver's door for any signs of damage or corrosion.
6
Check the operation of the door lock actuators by applying direct power to them.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is in a safe, well-lit area and parked with the engine off.
Disconnect the negative terminal of the battery to avoid electrical shorts.

2. Inspect and Replace Fuse

Step 1: Locate the fuse box (usually under the dashboard or in the engine compartment).
Step 2: Identify the fuse for the power locks (refer to the fuse diagram).
Step 3: Remove the fuse using a fuse puller and inspect it for continuity.
Step 4: Replace with a new fuse of the same amperage if blown.

3. Replace the Power Lock Switch

Step 1: Remove the door panel using a socket set and trim removal tools.
Step 2: Disconnect the wiring harness from the old power lock switch.
Step 3: Install the new power lock switch by connecting the wiring harness.
Step 4: Reassemble the door panel by aligning and securing all clips and screws.

4. Check and Repair Wiring

Step 1: Visually inspect the wiring harness for any frayed or damaged wires.
Step 2: Use a multimeter to check for continuity in the wiring from the switch to the actuator.
Step 3: Repair any damaged wires by splicing in new wire and insulating with electrical tape.

5. Test the Door Lock Actuators

Step 1: Disconnect the actuator from the wiring harness.
Step 2: Using jumper wires, directly connect the actuator to the vehicle battery to test its operation.
Step 3: If the actuator does not function, replace with a new actuator.