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U0126 Chrysler Code - Lost Communication With Steering Angle Sensor Module

Quick Answer

The U0126 Chrysler diagnostic trouble code (DTC) indicates that the vehicle's engine control module (ECM) has lost communication with the steering angle sensor module. Common causes include Damaged or corroded wiring/connectors between the ECM and steering angle sensor module, Faulty steering angle sensor module, Malfunctioning ECM. 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
U0126 Chrysler indicates Lost Communication With Steering Angle Sensor Module.
Common causes
Common causes include Damaged or corroded wiring/connectors between the ECM and steering angle sensor module, Faulty steering angle sensor module, Malfunctioning ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code U0126 Chrysler Description

The U0126 Chrysler diagnostic trouble code (DTC) indicates that the vehicle's engine control module (ECM) has lost communication with the steering angle sensor module. The steering angle sensor is a critical component of the vehicle's electronic stability control (ESC) system, as it provides the ECM with information about the steering wheel angle and rate of turn. This information is used by the ESC system to determine the vehicle's direction and stability while driving.

OBDII Code U0126 Chrysler - Lost Communication With Steering Angle Sensor Module
U0126 Chrysler Code - Lost Communication With Steering Angle Sensor Module

Common Causes of U0126 Chrysler

  1. Damaged or corroded wiring/connectors between the ECM and steering angle sensor module
  2. Faulty steering angle sensor module
  3. Malfunctioning ECM
  4. Software glitches in the vehicle's electronic control systems
  5. Electrical interference or communication errors

Symptoms of U0126 Chrysler

  1. ESC warning light illuminated on the dashboard
  2. Loss of stability and traction control while driving
  3. Difficulty steering or erratic steering behavior
  4. ABS system malfunction or activation when not needed
  5. Vehicle veering to one side during turns

How to Fix U0126 Chrysler

  1. Perform a visual inspection of the wiring and connectors between the ECM and steering angle sensor module to check for any damage or corrosion.
  2. Use a diagnostic scan tool to retrieve and clear the U0126 code from the ECM's memory.
  3. Test the steering angle sensor module for proper functionality and replace if necessary.
  4. Check and update the ECM software to ensure compatibility with the steering angle sensor module.
  5. Conduct a road test to verify that the ESC system is functioning correctly after the repair.

Cost to Fix U0126 Chrysler

The cost of repairing a U0126 Chrysler code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it's essential to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to consult with a qualified mechanic or dealership to get a more precise estimate for the repair.

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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 U0126 Chrysler Code

1. What does the OBDII code U0126 mean on a Chrysler?

The U0126 code indicates a loss of communication between the vehicle’s main computer (ECM/PCM) and the Steering Angle Sensor Module (SASM).

2. What are common symptoms of the U0126 code in a Chrysler?

Symptoms may include a malfunctioning Electronic Stability Control (ESC), illuminated ABS or traction control warning lights, and reduced steering responsiveness or stability.

3. What causes the U0126 code on a Chrysler?

Common causes include damaged or corroded wiring, a faulty Steering Angle Sensor Module, a failed CAN bus connection, or issues with the vehicle's battery or electrical system.

4. Can I drive with the U0126 code on my Chrysler?

While the vehicle may still be drivable, the loss of communication with the Steering Angle Sensor can affect safety features like traction control and stability systems, so it’s best to address the issue promptly.

5. How do I diagnose the U0126 code in a Chrysler?

Start by checking for loose or damaged wiring and connectors to the Steering Angle Sensor Module, inspect the CAN bus system for faults, and test the battery and charging system for proper voltage.

6. How is the U0126 code fixed on a Chrysler?

Repairs may involve repairing or replacing damaged wiring, replacing a faulty Steering Angle Sensor Module, or reprogramming the module if necessary.

7. Does a low battery cause the U0126 code in a Chrysler?

Yes, a weak or failing battery can disrupt communication between modules and trigger the U0126 code.

8. How much does it cost to fix the U0126 code on a Chrysler?

Cost varies depending on the issue, ranging from $100 for wiring repairs to $500 or more if the Steering Angle Sensor Module needs replacement.

9. Do I need to recalibrate the Steering Angle Sensor after fixing the U0126 code?

Yes, recalibration of the Steering Angle Sensor may be required to ensure proper functioning of the stability and traction control systems.

10. Can a U0126 code clear itself on a Chrysler?

In rare cases, the code may clear if the underlying issue is intermittent or resolves itself, but it’s recommended to diagnose and fix the problem to prevent it from recurring.

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