ABS light keeps coming on?

It sounds like the ABS hub is defective. Here are two videos the first one show how to do the job correctly the other is to scan the ABS to confirm the failure.

https://youtu.be/ZgiPRG6jffc

and

https://youtu.be/rTtAnsOlZU4

Please run down these guides and report back.

Good evening.

The most common issue with this activation is dirty sensor mountings. It changes the air gap to the tone ring and the ABS comes on braking especially when you are coming to a stop.

I would remove the sensors, clean the mounting and the sensor and reinstall. Then road test it to verify the repair.

Roy

Measure the resistance at the wheel speed sensor, should be between 700 and 10,000 ohms. If its higher or lower than spec replace the wheel speed sensor.

Have you scanned the computer to see if there are any trouble codes? It may deal with an ABS sensor. This video will help

https://youtu.be/rTtAnsOlZU4

and

https://youtu.be/Pb6nXV-iamI

Please let us know what you find. We are interested to see what it is.

That makes it tough. Since the brakes are good, there are no ABS codes, and the fluid is full, you need to start checking wiring in the system.

NOTE: I assume this isn't a parking brake light, correct?

Good afternoon,

Okay, there is a fault code stored in the system. I need that code to narrow the area of failure for you.

https://www.2carpros.com/articles/abs-warning-light-on-easy-repair-guide

Did you have the replacement module flashed or programmed to the cars VIN number? If you did not, it will not work.

https://www.2carpros.com/articles/how-to-replace-a-abs-controller

Speed sensors are the most common issue but needs to be confirmed.

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

https://www.2carpros.com/articles/how-to-replace-an-abs-wheel-speed-sensor

Roy

Okay, sounds good.

Replacing an ABS module always requires programming to the VIN or it will not work.

Did you put a new or used module on the car?

Let me know the codes when you get them

Roy

Okay, I attached the description of the code and the flow chart for finding the failure. In most cases, it is the module itself.

The 298 is for the flashing. The PCM is not communicating with the module because of a VIN mismatch.

I also attached a wiring diagram for you to verify power to the module.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-check-wiring

I would definitely have the module programmed by someone who has the scan tool for performing this.

Roy

Circuit Description
The ABS relay supplies battery voltage to six valve solenoids (RF dump/isolation, LF dump/isolation, and rear dump/isolation). The EBCM microprocessor applies the grounds needed to activate each solenoid. The low side of each solenoid coil has a feedback circuit to the EBCM microprocessor. When a solenoid is commanded OFF, the feedback voltage is high. When a solenoid is commanded ON, the feedback voltage is low.

Conditions for Running the DTC
The ignition is ON.
The vehicle speed is greater than 6 km/h (4 mph).

Conditions for Setting the DTC
The EBCM detects an internal malfunction.

Action Taken When the DTC Sets
C0265
If equipped, the following actions occur:
The EBCM disables the DRP/ABS.
The ABS indicator turns ON.
The brake warning indicator turns ON.

C0266
If equipped, the following actions occur:
The EBCM disables the ABS.
The ABS indicator turns ON.

Conditions for Clearing the DTC
The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.

Diagnostic Aids

Important: Whenever the EBCM is replaced for DTC C0265 or C0266, the ABS pump motor and motor circuitry must be tested for the proper resistance. Refer to steps 7 and 8 in the diagnostic table below for testing procedures and resistance values.

C0265
Thoroughly inspect connections and circuitry that may cause an intermittent malfunction.

C0266
Replace the EBCM if DTC C0266 continues to set intermittently.

Test Description
The numbers below refer to the step numbers on the diagnostic table.
4. This step tests if the battery positive voltage circuit can supply adequate power to the system relay.
7. A shorted ABS pump motor or shorted motor circuitry may damage the contacts within the system relay. Follow this step to prevent damage to a replacement EBCM.

It may but if you know someone, get it done.

Then we can proceed with other checks.

You are welcome.

Roy