C0871 - DTC C0871 - Vehicle Stability Control Module Communication Error in Popular Models

Quick Answer

C0871 means: C0871 signifies a communication error with the vehicle's stability control module.

Fix: Check and replace faulty components Cost: $100 - $300 Time: 90-180 minutes

Can I drive with C0871? Immediate attention is recommended to prevent safety issues.

Common Questions

What does C0871 mean and how does it affect my car?

C0871 indicates a communication issue with your vehicle's stability control module, potentially compromising safety features like traction control. This can lead to unsafe driving conditions, especially in adverse weather.

What are the most common causes of C0871 and how much does it cost to fix?

Common causes include wiring issues (60% likelihood), defective modules (25%), and software glitches (10%). Repair costs range from $100 for wiring fixes to $800 for module replacements.

Can I drive my car with C0871 or should I stop immediately?

Driving with C0871 is not recommended as it affects safety systems. It's best to address this issue promptly to avoid potential accidents.

How can I diagnose C0871 myself using GeekOBD APP?

You can use the GeekOBD APP to scan for the C0871 code, view freeze frame data, and check for related codes, giving you a clear picture of the fault.

What vehicles are most commonly affected by C0871?

Commonly affected vehicles include the 2014-2018 Chevrolet Silverado, GMC Sierra, and Cadillac CTS. Always check for any recalls or TSBs that might relate to this issue.

How can I prevent C0871 from happening again?

Regular maintenance checks, ensuring electrical connections are clean and free of corrosion, and timely software updates can help prevent recurrence of C0871.

What is C0871?

The DTC code C0871 indicates a communication error within the vehicle's stability control module, particularly in models such as the Chevrolet Silverado (2014-2018), GMC Sierra (2014-2018), and certain Cadillac models. This error suggests that the control module responsible for maintaining vehicle stability and traction is not communicating effectively with other systems in the vehicle. This can lead to issues such as loss of traction control, an increase in the likelihood of skidding, and potentially a decrease in overall vehicle safety. The problem can arise from various sources, including damaged wiring, poor connections, or even software glitches within the module itself. If left unresolved, this code could lead to further complications, including more extensive electronic failures and increased repair costs. Therefore, understanding the implications of C0871 is crucial for maintaining vehicle safety and performance.

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

Symptoms

Common symptoms when C0871 is present:

The check engine light is illuminated, indicating a fault in the vehicle's stability control system.
Loss of traction control may be experienced, especially in slippery conditions, leading to reduced vehicle stability.
Unusual noises or warning messages from the vehicle's dashboard when engaging stability control features.
Decreased responsiveness from the vehicle's braking system, particularly during aggressive maneuvers.
The vehicle may exhibit erratic handling when cornering or during sudden stops.

Possible Causes

Most common causes of C0871 (ordered by frequency):

{'cause': 'Faulty wiring or connectors', 'likelihood': '60%', 'details': 'Damaged or corroded wiring can interrupt signals between the stability control module and other systems.'}
{'cause': 'Defective stability control module', 'likelihood': '25%', 'details': 'A malfunctioning module itself can lead to communication failures, often due to internal faults.'}
{'cause': 'Software glitch', 'likelihood': '10%', 'details': 'Outdated or corrupted software may prevent proper communication, often resolved with a software update.'}
{'cause': 'Failed wheel speed sensors', 'likelihood': '3%', 'details': 'If the wheel speed sensors are not functioning correctly, they can send incorrect data to the module.'}
{'cause': 'Less common electronic failures', 'likelihood': '2%', 'details': 'Rarely, electronic failures within the vehicle’s control systems can lead to this code.'}

C0871 Repair Costs

Cost Breakdown by Repair Type

Wiring Repair or Replacement

Repair or replace damaged wiring or connectors related to the stability control module.

Total: $100 - $300
Success rate: 80%

Stability Control Module Replacement

Replace the faulty stability control module if diagnostics indicate failure.

Total: $300 - $800
Success rate: 90%

Software Update

Perform a software update on the module if a glitch is suspected.

Total: $50 - $150
Success rate: 70%

Money-Saving Tips for C0871

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 C0871 Diagnosis Process

Follow these systematic steps to accurately diagnose C0871. 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 (5-10 minutes)

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