U0C37 - DTC U0C37 - Understanding the Power Steering Control Module Error in 2016-2021 Chevrolet Malibu

Quick Answer

U0C37 means: U0C37 indicates a communication error between the power steering control module and the chassis control module.

Fix: Check and replace faulty components Cost: $300 - $600 Time: 90-180 minutes

Can I drive with U0C37? Immediate attention is recommended to avoid steering failures.

Common Questions

What does U0C37 mean and how does it affect my car?

The U0C37 code signals a communication failure between your car's power steering control module and the chassis control module. This can lead to heavy steering, making driving difficult, especially in tight spots or during parking. Addressing this issue is vital for safe driving.

What are the most common causes of U0C37 and how much does it cost to fix?

Common causes include a faulty power steering control module, damaged wiring, or outdated software. Repair costs can range from $150 for wiring repairs to $600 for module replacements, depending on the issue.

Can I drive my car with U0C37 or should I stop immediately?

While you may be able to drive your vehicle, it's not advisable to ignore the U0C37 code. Heavy steering can cause unsafe driving conditions. It's best to have the issue diagnosed and repaired promptly.

How can I diagnose U0C37 myself using GeekOBD APP?

Using the GeekOBD APP, you can scan for trouble codes and examine freeze frame data to understand when the issue occurred. Look for any additional codes that may give clues about the problem. Follow the app's diagnostic steps for further insights.

What vehicles are most commonly affected by U0C37?

U0C37 is frequently seen in models like the 2016-2021 Chevrolet Malibu and other GM vehicles from that era. Always check for any recalls or technical service bulletins related to power steering issues.

How can I prevent U0C37 from happening again?

To prevent the U0C37 code from recurring, ensure regular maintenance of your vehicle's electrical systems. Keep connections clean and dry, and consider software updates for your modules as part of routine service.

What is U0C37?

The diagnostic trouble code (DTC) U0C37 indicates a communication issue between the vehicle's power steering control module and the chassis control module. This code is commonly seen in various models, particularly in the 2016-2021 Chevrolet Malibu. When this code is triggered, it implies that the power steering system is unable to receive necessary data from the chassis control module, which can lead to steering difficulties. Drivers may notice a significant increase in steering effort, especially during low-speed maneuvers or when parking. If left unresolved, this issue can lead to complete power steering failure, posing a safety risk while driving. It's crucial to address this code promptly to ensure the power steering system functions optimally. In many cases, the root cause may stem from faulty wiring, a malfunctioning power steering module, or software issues that require an update. The importance of regular diagnostics cannot be overstated, as early detection can prevent more extensive and costly repairs down the line.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0C37 is present:

The check engine light may illuminate, indicating a fault in the power steering system.
Drivers might experience heavy steering, especially at low speeds, making it challenging to maneuver the vehicle.
There could be noticeable delays in steering response, which can be dangerous while driving.
Unusual noises from the steering column during turns may occur, suggesting mechanical issues.
In some cases, power steering may intermittently fail, leading to sudden difficulty in steering.

Possible Causes

Most common causes of U0C37 (ordered by frequency):

The most common cause of the U0C37 code is a faulty power steering control module, which has a likelihood of about 40%. This can happen due to internal failures or software glitches.
Another potential cause is damaged or corroded wiring and connectors that hinder communication. This issue can be exacerbated by exposure to moisture or road salt.
A third cause may relate to software issues, where an update is needed for the power steering control module to communicate effectively with the chassis control module. Keeping software up to date can prevent this problem.
Less common but serious issues include failure of the chassis control module itself, which can lead to a complete loss of power steering functionality.
A rare cause could be a malfunctioning vehicle speed sensor, which affects the power steering assist based on vehicle speed.

U0C37 Repair Costs

Cost Breakdown by Repair Type

Power Steering Control Module Replacement

Replacing the faulty power steering control module to restore proper communication with the chassis control module.

Total: $300 - $600
Success rate: 85%

Wiring Repair

Repairing or replacing damaged wiring to ensure proper communication between modules.

Total: $150 - $300
Success rate: 90%

Money-Saving Tips for U0C37

Start with the most common and least expensive repairs first
Use GeekOBD APP to confirm diagnosis before replacing expensive parts
Consider preventive maintenance to avoid future occurrences
Compare prices for OEM vs aftermarket parts based on your needs
Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional U0C37 Diagnosis Process

Follow these systematic steps to accurately diagnose U0C37. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion in the power steering system (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion in the power steering system (5-10 minutes).