that's what I thought - was just adding what info I had available. The differential mounted sensor is likely your problem. They can be tested... BUT test time getting wiring diagrams together plus labor vs just R&R would have a tech replacing, wholesale is < @20$. Vehicle up wheels off ground , cleaning connector probing wiring then spinning wheels while observing a DVOM set in AC mode at $100+ hour. Makes for some judgement calls over a 20+$ failure prone part that's @20 YEARS OLD.