ABS & Parking Brake Lights On

[G1en]

Advice Needed

Just been to a rolling road for a dyno run as part of a new championship i am doing this year.

On drive back home noticed the ABS and Parking Brake warning lights are on.

 

I have disconected battery and reconnected

Checked with my OBD reader - No codes stored or pending

I have the module wired in that permanently disables/ re-enables TC and SC this is still working fine and has no impact on the ABS light switching it off/on

Checked alll relevant fuses (i think) and all seem ok

Checked behind brake pedal and both switches that connect and all seems ok

took it for a drive after turning off/on and disconnecting battery and still on (stays on from ignition)

 

Only thing left is checking abs sensors but would this throw a code? How will i know which one might be faulty without swapping the lot?

On the rolling road it was slipping a lot and i am wondering if that has caused the lights, I dont know if they were on straight after session or not, there was no mapping or anything involved, it was just a power run (or 3) to determine the power of the car then it was weighed.

 

cheers