Posted in trans section, too but:
This is on my Mazda hybrid, so it's a unique situation. I didn't have TCC when I bought it, but I noticed the ECM speed read about half of actual, so figured that was the issue. Had my TurboTweak chip burned to account for that, but still nothing (now seeing the TCC command at the right speeds, though). So, thought maybe it was the old trans... till I installed my new one and still nothing! It's *probably* a wiring issue, but I'm not sure where to look? I mean, it's got the Buick wiring harness and ECM and there is the four wire connector going into the trans. Sounds pretty straightforward to me! Can I jumper one if those four wires to 12V or ground for testing purposes?
TIA, Jay
This is on my Mazda hybrid, so it's a unique situation. I didn't have TCC when I bought it, but I noticed the ECM speed read about half of actual, so figured that was the issue. Had my TurboTweak chip burned to account for that, but still nothing (now seeing the TCC command at the right speeds, though). So, thought maybe it was the old trans... till I installed my new one and still nothing! It's *probably* a wiring issue, but I'm not sure where to look? I mean, it's got the Buick wiring harness and ECM and there is the four wire connector going into the trans. Sounds pretty straightforward to me! Can I jumper one if those four wires to 12V or ground for testing purposes?
TIA, Jay
