what does error code C1520 mean for my Ford Explorer

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: C1520

3 min read

542 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 diagnose and fix C1520 steering angle sensor fault in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

C1520

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems to prevent short circuits.
•Allow the vehicle to cool down before working on any components near the engine.

Symptoms

•Check engine light illuminated
•Steering assist may feel abnormal or unresponsive
•Vehicle stability control warning light on the dashboard
•Possible issues with traction control functionality
•Erratic steering behavior during turns
•Difficulty in calibrating the steering angle sensor

Diagnostic Steps

1
Scan the vehicle’s OBD-II system to confirm the C1520 code and check for any additional codes.
2
Inspect the wiring and connectors related to the steering angle sensor for any visible damage or corrosion.
3
Test the steering angle sensor using a multimeter to ensure it is functioning within the manufacturer's specifications.
4
Verify the power and ground supply to the steering angle sensor.
5
Check for any software updates or recalls related to the vehicle’s stability control system.
6
Clear the error codes and perform a test drive to see if the code reappears.

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
•Screwdriver set
•Socket set

Parts Required

•Steering angle sensor (if faulty)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle’s OBD-II system to confirm the C1520 code and check for any additional codes.
2
Inspect the wiring and connectors related to the steering angle sensor for any visible damage or corrosion.
3
Test the steering angle sensor using a multimeter to ensure it is functioning within the manufacturer's specifications.
4
Verify the power and ground supply to the steering angle sensor.
5
Check for any software updates or recalls related to the vehicle’s stability control system.
6
Clear the error codes and perform a test drive to see if the code reappears.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the ignition is off.
Disconnect the battery to ensure safety.

2. Inspect Wiring and Connectors

Remove the lower steering column cover using a screwdriver.
Visually inspect the wiring harness connected to the steering angle sensor for any signs of wear, fraying, or corrosion.
If damage is found, repair or replace the wiring as necessary.

3. Replace Steering Angle Sensor (if needed)

If the sensor is faulty, disconnect the harness from the steering angle sensor.
Remove the mounting screws securing the sensor to the steering column using a socket set.
Install the new steering angle sensor in the reverse order of removal.
Torque the screws to the manufacturer’s specifications (typically around 5-7 Nm, but refer to the service manual for exact values).

4. Reconnect Battery and Calibrate Sensor

Reconnect the battery.
Use an OBD-II scanner to clear the C1520 code.
Follow the manufacturer’s procedure to calibrate the steering angle sensor, which may require turning the steering wheel fully left and right.

5. Test Drive

Conduct a test drive to ensure the issue is resolved and the stability control system functions correctly.