if your out doing donuts,really hard rights or lefts & 1 of the rear wheels loses traction it will set off the service ASR light,posible the ABS also. Youll proably drop the rpm's & the brake...
1ST TO 4TH Under certain RPM'S
Mine is still connected & the light still works. The 1st to 4th doesn't bother me.
When I run into that problem with the trailers I work on I just cut the wires & use heat shrink butt connectors to by pass the corroded plug in connector.