I have a 09 Mazda 5 with a supposedly bad TCM. The only problem while driving is starting out with slow acceleration. But after gets up to speed fast. With RPM not going past 3k. No loud noises or anything. I'm just confused. Everything I've read it says with a bad TCM is mostly stuck in one hear. Maybe I have a bad wiring harness also hard shift into reverse that's the only hard shift.
