Have Toyota Questions? Ask a Mechanic for Answers ASAP
Hi, I’m Cary and I’ll be helping you today.Please understand that I can't smell, hear, or touch the vehicle, so patience is appreciated. Before leaving the site make sure and leave me a rating. You can still reply to me as many times as needed, even after the rating..
You replaced the input speed sensor on the trans?
Never mind I just read that you did.
First of all I would inspect the wiring harness from the sensor to the main harness for any areas that it may be grounding against something.
Hello and welcome to just answer and allowing me to assist you. A couple questions to get a picture of what I'm dealing with.Did you check the voltage at the sensor connector ? one wire should show low voltage and the high side should be 2.5 to 5v if not then you need to check the resistance and continuity from there to the ECU if it does check put fine then I would suspect the ECU Hope this gives you some direction to go and if you require further assistance I'll be happy to do so.
lol now you know what we run into when trying to diag intermittent electrical problems it's almost impossible when things don't act up you just don't have a point to start from. At this point the only thing I can suggest is do that voltage test at the connector and if it checks our good I doubt it's the ECU so while your test leads are still attached wiggle the wire harness all the way to the fire wall. we had a few with breaks in the harness at the bend going into the fire wall. also don't hesitate to wiggle the ECU connector too. I'm going to bed rt now so let me know tomorrow what you tried and found, good luck.
cheers ***** ***** me know after you do as I stated good luck and if you require further assistance I'll be happy to do so. If your happy with my help please give my answer a pos rating, thank you.