how to troubleshoot the EPS system on my Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

535 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 EPS system issues on your 2020 Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems
•Allow the vehicle to cool down before inspecting under the hood

Symptoms

•EPS warning light illuminated on the dashboard
•Difficulty steering, particularly at lower speeds
•Steering feels heavy or unresponsive
•Unusual noises when turning the steering wheel
•Intermittent loss of power steering assist

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery voltage with a multimeter to ensure it is within the normal range (12.4V - 12.7V)
3
Check EPS fuse for continuity using a multimeter
4
Inspect wiring harness and connectors associated with the EPS system for damage or corrosion
5
Test EPS motor operation by applying battery voltage directly to the EPS motor
6
Verify the functionality of the steering angle sensor using a scan tool

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
•Torque wrench
•Basic hand tools

Parts Required

•New EPS motor (if faulty)
•EPS fuse (if blown)

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery voltage with a multimeter to ensure it is within the normal range (12.4V - 12.7V)
3
Check EPS fuse for continuity using a multimeter
4
Inspect wiring harness and connectors associated with the EPS system for damage or corrosion
5
Test EPS motor operation by applying battery voltage directly to the EPS motor
6
Verify the functionality of the steering angle sensor using a scan tool

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, basic hand tools.
Disconnect the negative battery terminal to ensure safety while working on the electrical system.

2. Replace EPS Motor

Remove Steering Column Covers: Use a socket set to remove screws securing the upper and lower steering column covers.
Disconnect EPS Connector: Carefully disconnect the electrical connector from the EPS motor, ensuring no damage to the pins.
Remove EPS Motor Mounting Bolts: Use a socket set to remove the bolts securing the EPS motor to the steering column.
Extract EPS Motor: Gently pull the EPS motor away from the column and set it aside.
Install New EPS Motor: Position the new EPS motor and align it with the mounting holes.
Secure with Bolts: Use a torque wrench to tighten the mounting bolts to the manufacturer’s specified torque settings (consult service manual for exact values).
Reconnect EPS Connector: Ensure the connector is properly seated on the new EPS motor.

3. Reassemble Steering Column

Reinstall Steering Column Covers: Position the covers back onto the steering column and secure them with screws.
Reconnect Battery Terminal: Reconnect the negative battery terminal and ensure it's tight.