Prius Smart Key Problems & F-150 Crank No start
About this episode
Two intriguing diagnostic cases are explored: a 2011 Toyota Prius with non-functioning smart key and remote entry systems due to a missing 'short pin' fuse affecting the certification ECU, and a 2015 Ford F-150 crank-no-start issue caused by reversed wiring on the crankshaft position sensor. The Prius problem highlights the complexity of Toyota's smart key system and the importance of power feeds to the certification ECU. The F-150 case emphasizes detailed waveform analysis revealing the inverted sensor signal preventing spark, despite proper fuel injection and timing. Both cases showcase deep diagnostic techniques and problem-solving in modern vehicle electronics.
This week on the show I have 2 case studies. A 2011 Toyota Prius that doesn't seem to have any smart key functions & 2015 Ford F-150 that is a crank, no spark, no start.
Website- https://autodiagpodcast.com
Facebook Group- https://www.facebook.com/groups/223994012068320
Email- [email protected]
Toyota Prius
"... week. The first one is going to be a 2011 Toyota Prius in which the smart key functions and the RK remot..."
Ford F150
"The first one is going to be a 2011 Toyota Prius in which the smart key functions and the RK remote keyless entry functions do not work, but you are able to key up vehicle and get it started eventually. The second vehicle is a 2015 Ford F-150 that is a crank no start, so I'll get into both of these. I thought they both had some interesting solutions."
Request an Explanation
Heard something you'd like explained? We'll add it to this episode.
Sign in to request explanations for terms you heard.
Want to learn more?
Browse our glossary for plain-English explanations of automotive terms, jargon, and concepts.
Help improve this episode
See something that's not quite right? Our annotations are AI-generated and can sometimes miss the mark. Click the flag icon on any annotation to suggest a correction.