C1004 - DTC C1004 - Understanding the ABS Control Module Malfunction in Toyota and Honda Vehicles

Quick Answer

C1004 means: DTC C1004 signals a malfunction in the ABS control module, impacting braking performance.

Fix: Check and replace faulty components Cost: $300 - $800 Time: 90-180 minutes

Can I drive with C1004? Immediate attention is advised to ensure safe braking performance.

Common Questions

What does C1004 mean and how does it affect my car?

DTC C1004 signifies a malfunction in the ABS control module, which is crucial for safe braking. If this code appears, you may experience issues like the ABS warning light turning on, inconsistent braking performance, or longer stopping distances. Addressing this issue promptly is essential for your safety.

What are the most common causes of C1004 and how much does it cost to fix?

The most common cause of C1004 is a faulty ABS control module, which can cost between $300 and $800 to replace. Other causes include damaged wiring, corroded connections, or faulty wheel speed sensors. Repairing wiring typically costs $100 to $300.

Can I drive my car with C1004 or should I stop immediately?

While you might be able to drive your vehicle, it is highly discouraged. The ABS system is essential for safe braking, especially in emergency situations. Ignoring the C1004 code could lead to compromised braking performance, putting you and others at risk.

How can I diagnose C1004 myself using GeekOBD APP?

To diagnose C1004 using the GeekOBD APP, connect it to your vehicle's OBD2 port, retrieve the diagnostic trouble codes, and examine the freeze frame data for context. This will help you understand when the issue occurred and under what conditions, aiding in identifying the problem.

What vehicles are most commonly affected by C1004?

DTC C1004 is commonly found in various Toyota and Honda models from 2013 to 2018, including the Toyota Camry and Honda Accord. Be sure to check for any recalls or technical service bulletins related to ABS issues for your vehicle.

How can I prevent C1004 from happening again?

Regularly inspect your vehicle's electrical connections and wiring for wear and tear. Keeping up with routine maintenance and promptly addressing any warning lights can also help prevent future occurrences of DTC C1004.

What is C1004?

DTC C1004 indicates a malfunction in the Anti-lock Brake System (ABS) control module. This code is often encountered in various models of Toyota and Honda vehicles, particularly those manufactured between 2013 and 2018. The ABS control module is crucial for maintaining vehicle stability and preventing wheel lock-up during hard braking. When this module fails or receives incorrect input signals, the entire braking system is compromised, leading to potential safety hazards. Symptoms can range from a malfunctioning ABS light to impaired braking performance, which could increase stopping distances and reduce overall vehicle control. This issue is not just a nuisance; it can lead to severe safety risks if not addressed promptly. In many cases, the problem may stem from electrical issues, such as damaged wiring or poor connections, or from the module itself becoming faulty over time. Owners should be vigilant about any warning lights on their dashboards, as these can be early indicators of a problem that requires immediate attention. Ignoring the C1004 code can lead to further complications, including more extensive damage and higher repair costs down the line.

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

Symptoms

Common symptoms when C1004 is present:

The ABS warning light illuminates on the dashboard, indicating a malfunction in the braking system.
Drivers may notice a decrease in braking efficiency, leading to longer stopping distances during emergency braking.
The brake pedal may feel unusually hard or soft, affecting the driver's ability to gauge stopping power accurately.
Inconsistent braking performance, where the brakes may engage and disengage unexpectedly while driving.
The vehicle may experience issues with traction control, especially in slippery conditions, due to ABS malfunction.

Possible Causes

Most common causes of C1004 (ordered by frequency):

{'cause': 'Faulty ABS control module', 'likelihood': '40%', 'details': 'The ABS control module may fail due to internal component issues or software glitches.'}
{'cause': 'Damaged wiring or connectors', 'likelihood': '30%', 'details': 'Wiring harnesses can be subject to wear and tear, leading to disconnections or short circuits.'}
{'cause': 'Corroded or loose ground connections', 'likelihood': '20%', 'details': 'Poor grounding can affect module performance; ensure all connections are clean and tight.'}
{'cause': 'Faulty wheel speed sensors', 'likelihood': '7%', 'details': 'If wheel speed sensors malfunction, they can send incorrect data to the ABS module.'}
{'cause': 'Software issues', 'likelihood': '3%', 'details': 'Occasionally, the ABS module may require a software update to function correctly.'}

C1004 Repair Costs

Cost Breakdown by Repair Type

ABS Control Module Replacement

Replacing the faulty ABS control module with a new or refurbished unit.

Total: $300 - $800
Success rate: 85%

Wiring Harness Repair

Repairing or replacing damaged wiring or connectors related to the ABS system.

Total: $100 - $300
Success rate: 90%

Money-Saving Tips for C1004

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 C1004 Diagnosis Process

Follow these systematic steps to accurately diagnose C1004. Each step builds on the previous one to ensure accurate diagnosis.