Why is my ABS light on Dodge Charger?

The ABS light turning on in a Charger means there’s a fault detected in the anti-lock braking system that should be diagnosed and repaired promptly. While you may still be able to brake normally in some situations, the ABS may not engage during hard or slippery braking, increasing stopping distances. Have the vehicle scanned and serviced as soon as possible to restore full braking performance.

What the ABS light means

The ABS warning light is intended to alert you to a malfunction within the anti-lock braking system. When the system detects a fault, it disables ABS and may illuminate a warning light on the dashboard. In many Chargers, the ABS light appears alongside other stability or traction indicators if a shared electrical fault or sensor issue exists. Regardless of driving conditions, the light signals that the system should be inspected by a technician.

Common causes in a Dodge Charger

The following are the most frequent reasons Charger owners see the ABS warning light come on, ranging from simple sensor issues to more complex module faults:

• Faulty or dirty wheel speed sensor or damaged wiring at one or more wheels


• Damaged or dirty tone ring (reluctor ring) around a wheel hub


• Corroded or loose connectors, or a damaged wheel-speed sensor harness


• Blown ABS fuse or faulty relay powering the ABS module


• Defective ABS control module or hydraulic pump/modulator


• Low brake fluid level or brake hydraulic system leaks affecting the ABS modulator

These issues commonly manifest as intermittent lighting or as a persistent warning that won't clear after restart. A quick diagnostic scan is typically the fastest way to identify the exact fault code.

How to diagnose and fix

To pinpoint the fault behind the ABS warning, start with a diagnostic scan to retrieve ABS trouble codes and monitor wheel-speed data, then inspect sensors and wiring. The steps below outline a practical approach used by technicians on Dodge Chargers:

• Use an OBD-II scanner with ABS capability to read fault codes and view live wheel-speed data.


• Inspect each wheel sensor and its wiring for damage, corrosion, moisture, or loose connectors; clean or replace as needed.


• Check the tone rings for cracks, dirt, or misalignment that could distort sensor readings.


• Check relevant fuses, relays, and the ABS power supply; replace any blown fuses as required.


• Inspect brake fluid level and look for leaks in the hydraulic lines or ABS pump/modulator; repair leaks and refill fluid if necessary.


• If a specific sensor or the ABS module is diagnosed as faulty, replace the component or reprogram/recalibrate as required by the service manual; some repairs require specialized tools.


• Clear codes after repairs and perform a controlled test drive to confirm the light stays off and ABS activates appropriately during braking on a safe surface.

Important: ABS is a safety-critical system. If the light is flashing while braking, or if you’re unsure about performing diagnostics yourself, have the vehicle towed to a professional shop or dealer for service.

Summary

The ABS warning light on a Dodge Charger signals a fault in the anti-lock braking system or its supporting components. Common causes include faulty wheel-speed sensors, damaged tone rings, wiring issues, blown fuses, or a failing ABS module. Diagnose with an ABS-capable scanner, inspect sensors and wiring, and address any hydraulic fluid issues. Because ABS affects braking performance in emergencies, timely diagnosis and repair are essential for safe operation.

What does the ABS light mean on a Dodge Charger?

The ABS light on a Dodge Charger indicates an issue with the Anti-Lock Brake System, meaning the ABS is disabled and the standard brakes will still work, but without the anti-lock function. Common causes include faulty wheel speed sensors, a problem with the ABS control module or its wiring, low brake fluid, or a malfunctioning brake light switch.
 
Common causes

• Faulty or dirty wheel speed sensors: These sensors monitor your wheels' rotation. If one is dirty, damaged, or malfunctioning, it can trigger the light. 
• Problem with the ABS control module: This module is the "brain" of the system. Internal failures, corrosion, or electrical problems can cause the light to turn on. 
• Issues with the wiring or fuses: A damaged wire or blown fuse for the ABS or traction control system can trigger the warning. 
• Low brake fluid: A low level of brake fluid can indicate a leak or worn components and will often cause the light to illuminate. 
• Malfunctioning brake light switch: The switch located on top of the brake pedal can cause the light to come on if it's not working correctly. 
• Uncalibrated steering angle sensor: After a front-end alignment, this sensor may need to be calibrated, and an uncalibrated one can trigger the light. 
• Low battery: A weak battery can sometimes cause various system codes to appear, including those related to the ABS. 

What to do

1. Check your brake fluid level: Ensure your brake fluid is at the proper level. If not, this may be the sole cause, and a refill may be all that's needed. 
2. Get the diagnostic codes read: The best way to pinpoint the problem is to use an OBD-II scanner to read the specific trouble codes stored in the vehicle's computer. This will help you and a mechanic narrow down the cause. 
3. Inspect wheel speed sensors: A mechanic can inspect the sensors and their wiring for any dirt, debris, or damage that might be causing false readings. 
4. Test the brake light switch: A technician can test and calibrate the brake light switch, which may resolve the issue. 
5. Check fuses: Make sure the ABS and traction control fuses are not blown. 

Important note
While the ABS is disabled, your standard brakes will still function, but they won't have the anti-lock feature to prevent wheel lock-up during hard braking. It's best to have the issue diagnosed and fixed to ensure your vehicle's safety.

What is the most common cause of the ABS light to come on?

The most common cause of the ABS light coming on is a faulty wheel speed sensor, though a low brake fluid level is also a very frequent reason. Other common causes include damaged wiring, a malfunctioning ABS control module, or issues with the hydraulic pump. 
Common causes for the ABS light

• Faulty wheel speed sensor: These sensors monitor the rotation of each wheel. If a sensor is dirty, damaged, or malfunctioning, it sends incorrect data, triggering the light. 
• Low brake fluid: The ABS uses hydraulic fluid from the main brake system. If the fluid level drops below a certain point, the light will come on to indicate a problem, which could be a sign of a leak or worn brake pads. 
• Damaged wiring or connectors: Wires connecting the speed sensors to the ABS module can corrode or fray, leading to a loss of signal. This is especially common in areas with road salt. 
• Faulty ABS module: The control module is the "brain" of the system. If its internal circuits fail, it will not be able to process data correctly and the light will turn on. 
• Blown fuse or relay: Like most electronic systems, the ABS has a fuse that protects it. If this fuse blows, the system will shut down and the light will illuminate. 

What to do when the light is on

• Check the brake fluid: Ensure the fluid reservoir is filled to the correct line and that you are using the proper type of fluid. 
• If both the ABS and brake lights are on: This is a more serious issue, indicating a problem with the regular braking system itself. It's not safe to drive and you should have the vehicle serviced immediately. 
• Consult a professional: A certified mechanic is usually required to properly diagnose and fix ABS issues, as they can be complex to pinpoint. 

Is it safe to drive if your ABS light is on?

If your ABS light comes on while you're driving, you can continue driving to your destination, as your normal brakes will still be working. However, we do recommend taking your car to a professional as soon as possible, as it can be dangerous to continue driving without a functioning ABS.

Is it expensive to fix an ABS light?

Typical Repair Costs
ABS Sensors: $60 - $240, depending on the make and model of the vehicle. ABS Module: $240 - $720 for the part itself. Pump and Valves: $180 - $360, depending on the complexity.