Need real expertise

[zerolash]

Need real expertise on ABS light. 2015 30k miles
Light comes on immediately which means it’s an electrical issue not a sensor or rear hub problem.
New front speed sensors
Both rear hubs are brand new
ABS module is new
All fuses checked
All relays checked
Reset all with FORScan several times

I will give this another try before I take it somewhere or just replace entire abs harness.

If there is someone who can help me diagnose issue I’d appreciate it.

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[DonnieO]

https://cardiagn.com/ford-mustang-2015-2018-service-repair-manual-wiring-diagrams/

 

[zerolash]

I have a manual thanks

 

[17gt07]

What code or codes is it throwing? Are your tires the same size all around?

 

[zerolash]

There are no abs codes. They way the system works is when the key is turned on it goes through a check to make sure all sensors are working. If it was a sensor or (tire) or something like that when the light is turned off by resetting then once the car is moving the light would come on. When it come on instantly it’s something electrical.

 

[17gt07]

It’s not that I don’t believe you but I don’t see how it wouldn’t set any fault codes. Even my new edge would set a code for no communication when the bosch abs module took a dump.

 

[Tucker80]

Is this the same car that was totalled and has been setting off dash lights for years now? If so its probably time to accept defeat and take it to an expert.

 

[zerolash]

Sounds right. I’ve learned a lot now. Ya you are probably right

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