Fried electrical
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
If the scan tool powered up, that isn't an issue. If the scan tool has its own power, it doesn't care about pin 16 power. If it doesn't have its own power and the cigar lighter fuse is blown, then the scanner will be dead.
Lead Driver
Joined: Mar 2006
Posts: 6,256
Likes: 438
From: IL
If it is powering up and it's saying communication error, my experience has been that the reader is too old for the truck. My old reader wouldn't read any OBD newer than 2005. My new one will read current 2017 and older.
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
I forget the exact years, but all US-market vehicles had to be CAN-bus by 06 or 07 and Ford started that transition on certain models around the 03-04 MY time frame.
Posting Guru
Joined: Nov 2003
Posts: 2,107
Likes: 3
From: California Desert
If the code reader powers up but can't connect, even with the key on, then combined with the other symptoms I believe your PCM is dead. There are companies that can try to repair it for you, or you're going to have to order a programmed replacement. Either way, you'll have to pull the PCM out first so you can see which part number you have.
I can tell you from personal experience do NOT order a replacement through a company called Flagship 1. I ordered one for my truck two weeks ago from them before reading their reviews and it still hasn't even shipped. Keep getting BS excuses from customer service. All in line with their bad reviews.
I can tell you from personal experience do NOT order a replacement through a company called Flagship 1. I ordered one for my truck two weeks ago from them before reading their reviews and it still hasn't even shipped. Keep getting BS excuses from customer service. All in line with their bad reviews.
Posting Guru
Joined: Nov 2003
Posts: 2,107
Likes: 3
From: California Desert
One other thought, when you cycle the key with the under-dash fuse panel open, can you hear the relays clicking? If the PCM relay roasted, that would also cause the rest of the symptoms.
Thread Starter
|
Freshman User
Joined: Feb 2017
Posts: 33
Likes: 0
I verified that the relays are good too. My obd2 reader is just a cheap one from Walmart but it should be compatible enough to get a generic code.
I usually try to check the simple things first but so far all things poison to the computer.
I greatly appreciate all the input from everyone.
I usually try to check the simple things first but so far all things poison to the computer.
I greatly appreciate all the input from everyone.
Thread Starter
|
Freshman User
Joined: Feb 2017
Posts: 33
Likes: 0
I verified that the relays are good too. My obd2 reader is just a cheap one from Walmart but it should be compatible enough to get a generic code.
I usually try to check the simple things first but so far all things poison to the computer.
I greatly appreciate all the input from everyone.
I usually try to check the simple things first but so far all things poison to the computer.
I greatly appreciate all the input from everyone.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Posting Guru
Joined: Nov 2003
Posts: 2,107
Likes: 3
From: California Desert
I can tell you from personal experience do NOT order a replacement through a company called Flagship 1. I ordered one for my truck two weeks ago from them before reading their reviews and it still hasn't even shipped. Keep getting BS excuses from customer service. All in line with their bad reviews.
Thread Starter
|
Freshman User
Joined: Feb 2017
Posts: 33
Likes: 0
I have to partially retract this statement. When I arrived home today, the replacement PCM was waiting for me on the front porch. Ten minutes later I had a running truck. So far, so good. While it may have taken a week and a half longer than originally scheduled, the company seems to have come through.
Thread Starter
|
Freshman User
Joined: Feb 2017
Posts: 33
Likes: 0
I would like to take a moment to announce to the world how much I appreciate engineers! I love how they put the crank sensor right behind the ac compressor. Using such a small mild steel bolt threaded into aluminum was an awesome idea to. It's not like the bolt is hard to get at, or the little bolt might rust, maybe that thing called electrolysis might happen, it's not like any one would ever break the head off of the bolt!
Putting my tools down, walking away and getting a stiff drink for the night.
Putting my tools down, walking away and getting a stiff drink for the night.
Thread Starter
|
Freshman User
Joined: Feb 2017
Posts: 33
Likes: 0
got an up date. Sent the pcm to a place for repair. SIA auto electronics, very fast and only $129. The repair tech told me i had fried circuits.
However i still have no spark. Even replaced cam and crank sensors. Any body got an idea?
However i still have no spark. Even replaced cam and crank sensors. Any body got an idea?
