how to troubleshoot electric power steering failure in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

566 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to troubleshoot and fix electric power steering failure in Ford Explorer (2011-2019). Step-by-step guide with diagnostic and repair instructions.

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid electric shock or short circuits.
•Allow the vehicle to cool down before starting work on components in the engine bay.

Symptoms

•Steering wheel feels heavy or difficult to turn
•Steering assist warning light illuminated on the dashboard
•Unusual noises when turning the steering wheel
•Intermittent loss of power steering assist
•EPS system failure message displayed on the instrument cluster

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored fault codes related to the EPS system.
2
Inspect the power steering fluid level to ensure it is at the correct level if applicable.
3
Check the electrical connections and wiring harness for any signs of damage, corrosion, or loose connections.
4
Test the EPS motor using a multimeter to measure its voltage and current draw during operation.
5
Inspect the steering angle sensor for proper function and calibration.
6
Perform a visual inspection of the steering column and associated components for any physical damage or wear.

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
•Screwdriver set

Parts Required

•EPS motor (if diagnosed as faulty)
•Electrical connectors (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored fault codes related to the EPS system.
2
Inspect the power steering fluid level to ensure it is at the correct level if applicable.
3
Check the electrical connections and wiring harness for any signs of damage, corrosion, or loose connections.
4
Test the EPS motor using a multimeter to measure its voltage and current draw during operation.
5
Inspect the steering angle sensor for proper function and calibration.
6
Perform a visual inspection of the steering column and associated components for any physical damage or wear.

Solution

1. Preparation

Gather tools and materials: OBD-II scanner, multimeter, socket set, screwdriver set, and any replacement parts identified during diagnostics.
Disconnect the battery to prevent any electrical shorts or shocks during the repair process.

2. Inspect and Repair Wiring

Inspect wiring harness: Check for frayed wires or corroded connectors.
- If damaged, carefully repair or replace the affected wiring sections.
Secure connections: Ensure all connectors are snug and free from debris.

3. Replace EPS Motor (if necessary)

Remove components: Depending on accessibility, remove any necessary components in the way of the EPS motor (e.g., under-dash panels).
Unplug the motor: Disconnect the EPS motor electrical connector.
Unscrew and remove the EPS motor: Use the appropriate socket to unfasten the bolts securing the motor to the steering assembly.
Install the new EPS motor: Position the new motor and secure it with bolts to the specified torque (check service manual for specifics).
Reconnect the electrical connector: Ensure it clicks into place.

4. Reassemble and Reconnect

Reinstall any removed components: Reverse the disassembly steps to restore the vehicle to its original state.
Reconnect the battery and ensure all connections are secure.

5. Calibration

Calibrate the EPS system: Depending on your vehicle, you may need to perform a steering angle sensor calibration using a diagnostic scanner.