Braking System Control Module - Invalid Data Received From ABS Module
The control module sees inconsistent data from the ABS module.
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What it means (plain English)
The braking system's computer is getting weird signals from the ABS unit, meaning it can't trust the data it's receiving.
What the computer is actually seeing
The braking control module expects proper signals but sees signals outside normal operational parameters, often showing a fault during vehicle motion or during system startup.
What a healthy reading looks like
The ABS module should report wheel speeds between 0 to 255 km/h; anything drastically different may trigger this code.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect all wiring and connectors between the ABS module and brake control module for damage or corrosion. Fix any issues found. Decision: If wiring/connectors are good, go to step 2.
- 22. Check brake fluid level and quality. Must be at recommended level and clean. Decision: If fluid is low or contaminated, fix issue and clear code. If fluid is good, go to step 3.
- 33. Use a scan tool to read the ABS module data. Confirm if wheel speed sensors are functioning properly. Expected readings should show consistent speed during vehicle movement. Decision: If data is inconsistent, replace wheel speed sensors. If data is consistent, go to step 4.
- 44. Perform a function test of the ABS module with a scan tool. If any tests fail, replace the ABS module. If all tests pass, further diagnosis of brake control module may be required.
Common causes
- Faulty ABS module
- Wiring issues between ABS and brake module
- Fluid contamination affecting the ABS function
- Faulty wheel speed sensors
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's not recommended to drive as braking performance could be compromised.
Will this code come back after repairs?
If proper repairs are made, it should not return unless there's an underlying issue.
Why does this code sometimes pair with C0035?
C0035 relates to specific wheel speed sensor issues, which can affect ABS communication.
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