Engine-CodesFord – C1158 Ford

C1158 Ford Code - Left Front Wheel Speed Sensor Input Signal Erratic

Quick Answer

The C1158 Ford code indicates that the left front wheel speed sensor input signal is erratic. Common causes include Faulty wheel speed sensor, Damaged or corroded sensor wiring or connectors, Intermittent electrical issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1158 Ford indicates Left Front Wheel Speed Sensor Input Signal Erratic.
Common causes
Common causes include Faulty wheel speed sensor, Damaged or corroded sensor wiring or connectors, Intermittent electrical issues.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1158 Ford Description

The C1158 Ford code indicates that the left front wheel speed sensor input signal is erratic. This sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. The wheel speed sensors are responsible for detecting the rotational speed of each wheel and transmitting this information to the ABS module. The ABS module uses this data to determine if any wheel is locking up during braking and adjusts the braking force accordingly to prevent skidding.

OBDII Code C1158 Ford - Left Front Wheel Speed Sensor Input Signal Erratic
C1158 Ford Code - Left Front Wheel Speed Sensor Input Signal Erratic

Common Causes of C1158 Ford

  1. Faulty wheel speed sensor
  2. Damaged or corroded sensor wiring or connectors
  3. Intermittent electrical issues
  4. Wheel speed sensor incorrectly installed or mounted
  5. Issues with the ABS module or related components

Symptoms of C1158 Ford

  1. ABS warning light illuminated on the dashboard
  2. Traction control warning light activated
  3. Erratic or inconsistent braking behavior
  4. Increased stopping distances
  5. Grinding or clicking noises from the wheels during braking

How to Fix C1158 Ford

  1. Diagnose the issue using a diagnostic scanner to pinpoint the faulty wheel speed sensor.
  2. Inspect the sensor wiring and connectors for any damage or corrosion, repair or replace as necessary.
  3. Replace the left front wheel speed sensor with a new, OEM-quality sensor.
  4. Clear the diagnostic trouble codes and perform a road test to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying electrical or ABS module issues.

Cost to Fix C1158 Ford

The cost to repair a left front wheel speed sensor input signal erratic issue can vary depending on the make and model of the vehicle, as well as the location of the repair. On average, the cost of replacing a wheel speed sensor ranges from $100 to $300, including parts and labor. Additional costs may apply if other components need to be replaced or if further diagnostic testing is required. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your specific vehicle and location.

Tech Notes for C1158 Ford









User Submitted Video

Need more information about the C1158 Ford code?

Need more information on how to fix the C1158 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1158 Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1158 Ford Code

1. What does the OBDII code C1158 mean on a Ford?

The code C1158 indicates an erratic input signal from the left front wheel speed sensor, which is part of the ABS system.

2. What are the common symptoms of the C1158 code?

Symptoms include an illuminated ABS warning light, loss of ABS function, and potential traction control issues.

3. What causes the C1158 code on a Ford vehicle?

Common causes include a faulty left front wheel speed sensor, damaged wiring or connectors, a malfunctioning ABS module, or debris obstructing the sensor.

4. Can I still drive my Ford with the C1158 code active?

Yes, but your ABS and traction control systems may not function properly, increasing the risk of wheel lock-up during hard braking.

5. How do I diagnose the C1158 code?

Start by inspecting the left front wheel speed sensor, wiring, and connectors for damage or debris. Use a multimeter or scan tool to check the sensor’s signal.

6. How do I fix the C1158 code on a Ford?

Repairs may include cleaning or replacing the left front wheel speed sensor, repairing damaged wiring, or addressing issues with the ABS module.

7. How much does it cost to fix the C1158 code?

Costs vary, but replacing a wheel speed sensor typically ranges from $100 to $300, including parts and labor.

8. Can a dirty wheel hub cause the C1158 code?

Yes, debris or rust on the wheel hub can interfere with the sensor’s ability to read the tone ring, causing an erratic signal.

9. Will resetting the code fix the C1158 issue?

Resetting the code without addressing the root cause will only temporarily clear the warning; the issue will likely return.

10. Can a failing ABS module trigger the C1158 code?

Yes, a malfunctioning ABS module can disrupt communication with the wheel speed sensor and cause this code to appear.

Discuss the causes and fixes for C1158 Ford OBDII Code

Code C1158 Ford comments

No comments found for this page.