C0606 - Understanding DTC C0606: Common Problems in Chevrolet, GMC, and Cadillac Vehicles

Quick Answer

C0606 means: DTC C0606 signifies a communication error in the ABS module, affecting braking performance.

Fix: Check and replace faulty components Cost: $600 - $1,200 Time: 90-180 minutes

Can I drive with C0606? Immediate attention is recommended to ensure vehicle safety.

Common Questions

What does C0606 mean and how does it affect my car?

DTC C0606 indicates a communication failure within the ABS module of your vehicle. This can affect braking performance and traction control, leading to safety concerns while driving. It's essential to address this issue to maintain vehicle safety.

What are the most common causes of C0606 and how much does it cost to fix?

The most common causes of C0606 include a faulty ABS control module (costing between $600 and $1,200 to replace), damaged wiring, or blown fuses. Repairing wiring typically costs around $100 to $300, while fuse replacement is inexpensive, usually between $10 and $50.

Can I drive my car with C0606 or should I stop immediately?

Driving with C0606 can be risky as it indicates potential problems with your braking system. It is advisable to have the issue diagnosed and repaired as soon as possible to ensure your safety and the safety of others on the road.

How can I diagnose C0606 myself using GeekOBD APP?

To diagnose C0606 using the GeekOBD APP, first connect the OBD2 scanner to your vehicle's port. Use the app to scan for diagnostic codes and review freeze frame data. Look for any other codes that may be present, as they can provide additional context for troubleshooting.

What vehicles are most commonly affected by C0606?

DTC C0606 is commonly found in various Chevrolet, GMC, and Cadillac models, particularly from 2000 to 2018. It's advisable to check for any recalls or Technical Service Bulletins (TSBs) related to the ABS module for your specific model.

How can I prevent C0606 from happening again?

To prevent the occurrence of C0606, regularly inspect your vehicle's wiring and connections for damage. Ensure that the ABS system is serviced according to the manufacturer's recommendations, and address any warning lights as soon as they appear.

What is C0606?

DTC C0606 is a Diagnostic Trouble Code that indicates a communication issue within the vehicle's control modules, particularly relating to the Anti-lock Brake System (ABS) and traction control systems. This code is prevalent in various models from General Motors, including Chevrolet, GMC, and Cadillac, especially those manufactured between 2000 and 2018. When this code appears, it typically signifies that the vehicle's control modules are unable to communicate effectively, leading to potential safety risks. Drivers may notice that the ABS warning light illuminates on the dashboard, and the vehicle might experience intermittent braking issues. The root cause can range from a faulty ABS module to issues with wiring or connectors. It is crucial to address this code promptly, as it can lead to reduced vehicle stability and control, especially in adverse weather conditions. Ignoring DTC C0606 could result in costly repairs down the line, not to mention the safety implications of having a malfunctioning braking system. Therefore, understanding this code and its implications is essential for any vehicle owner, especially those driving affected GM models.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0606 is present:

  • The ABS warning light remains illuminated on the dashboard, indicating a potential issue with the braking system.
  • Drivers may experience a loss of traction control, leading to vehicle instability during acceleration or cornering.
  • In some cases, the brake pedal may feel unusually soft or hard, affecting the driver's ability to stop the vehicle effectively.
  • Unusual noises, such as clicking or buzzing, may occur from the ABS module when the vehicle is in motion.
  • The vehicle may fail to pass inspection due to the persistent ABS warning light.

Possible Causes

Most common causes of C0606 (ordered by frequency):

  1. The most common cause of DTC C0606 is a faulty ABS control module, which can occur in approximately 50% of cases. This module is responsible for managing the braking system's electronic functions.
  2. Another likely cause is damaged wiring or corroded connectors leading to intermittent communication failures. This issue can be exacerbated by exposure to moisture or road salt.
  3. A blown fuse in the ABS circuit can also trigger this code, though it is less common. Regular checks of the fuse box can help prevent such issues.
  4. Less common but serious causes include software issues within the ABS module that may require reprogramming or updating.
  5. Rarely, this code may be triggered by a malfunctioning Engine Control Unit (ECU) that miscommunicates with the ABS control module.

C0606 Repair Costs

Cost Breakdown by Repair Type

ABS Module Replacement

Replacing the ABS control module is often necessary if it is determined to be faulty. This involves labor and part costs.

  • Total: $600 - $1,200
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring or connectors can resolve communication issues without needing to replace the module.

  • Total: $100 - $300
  • Success rate: 75%
Fuse Replacement

Replacing a blown fuse in the ABS circuit is a simple and inexpensive fix that can resolve this code.

  • Total: $10 - $50
  • Success rate: 95%
Money-Saving Tips for C0606
  • 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 C0606 Diagnosis Process

Follow these systematic steps to accurately diagnose C0606. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Conduct an initial visual inspection to identify any obvious issues such as damaged wiring, loose connections, or corrosion, which should take about 5-10 minutes

Step 1: Conduct an initial visual inspection to identify any obvious issues such as damaged wiring, loose connections, or corrosion, which should take about 5-10 minutes.

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: Use an OBD2 scanner, preferably with the GeekOBD APP, to retrieve all diagnostic codes and freeze frame data

Step 2: Use an OBD2 scanner, preferably with the GeekOBD APP, to retrieve all diagnostic codes and freeze frame data. This helps in understanding the context of the fault, taking roughly 10-15 minutes.

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Perform component testing using a multimeter to check the ABS module and associated wiring for continuity and proper voltage (20-30 minutes)

Step 3: Perform component testing using a multimeter to check the ABS module and associated wiring for continuity and proper voltage (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: After repairs, conduct a system function test to verify the correct operation of the ABS and clear the codes within 10-15 minutes

Step 4: After repairs, conduct a system function test to verify the correct operation of the ABS and clear the codes within 10-15 minutes.

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Finally, conduct a road test under various conditions to ensure the repair was successful and the vehicle operates normally (15-20 minutes)

Step 5: Finally, conduct a road test under various conditions to ensure the repair was successful and the vehicle operates normally (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: 2015 Chevrolet Silverado - ABS Module Failure

Vehicle: 2015 Chevrolet Silverado, 65,000 miles

Problem: Customer reported an ABS warning light and intermittent braking issues.

Diagnosis: An OBD2 scan revealed code C0606. A visual inspection showed corroded wiring leading to the ABS module.

Solution: Replaced damaged wiring and the ABS control module.

Cost: $1,000 (parts: $800, labor: $200)

Result: After repairs, the ABS warning light was cleared, and the brakes functioned normally during a road test.

Case Study 2: 2017 GMC Terrain - Wiring Repair

Vehicle: 2017 GMC Terrain, 45,000 miles

Problem: Driver noticed the ABS light on and occasional loss of traction control.

Diagnosis: Diagnostic scanning showed C0606. Further inspection revealed a damaged connector in the ABS circuit.

Solution: Replaced the damaged connector and performed a system reset.

Cost: $150 (parts: $50, labor: $100)

Result: The ABS light turned off after repairs, and the vehicle's stability was restored.

Diagnose C0606

Use GeekOBD APP for professional diagnosis!

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Code Information

Code: C0606
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes