can't read trouble code
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New User
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can't read trouble code
I've got a '99 Ford Ranger 3.0L that has check eng. light on.
Problem is I can't get the code reader to pull up the code. This has happened before and someone told me how to jump 2 of the leads in the link connector then I was able to. But like a dummy I didn't write it down. Anybody got an answer for me. Thanks!
Problem is I can't get the code reader to pull up the code. This has happened before and someone told me how to jump 2 of the leads in the link connector then I was able to. But like a dummy I didn't write it down. Anybody got an answer for me. Thanks!
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
If you have the 99 Ranger EVTM, take a look at the wiring diagram for the "multiplex communication network"
It will show which pin in the DLC is wired to that fuse.
Got voltage on that pin?
If you do, you probably have a scanner problem.
Take it to Autozone etc. & see if their scanner will work on it.
Yours might be the same as my 97 Explorer & if it is it will be on pin 16/solid orange wire.
It will show which pin in the DLC is wired to that fuse.
Got voltage on that pin?
If you do, you probably have a scanner problem.
Take it to Autozone etc. & see if their scanner will work on it.
Yours might be the same as my 97 Explorer & if it is it will be on pin 16/solid orange wire.
Fleet Mechanic
Joined: Sep 2007
Posts: 1,726
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From: down south
Mine is doing the same thing. the general readers like you get for fairly cheap do not work. My cousin brought home a code reader from the place he works....one of the $1500 ones. It would not work until we used the extra power lead and plugged it into the cig lighter. With mine at least it seems to be the power lead part of the obd hookup. Dont know if its related, but my radio switched power does not work either.
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I have power at the obd11 fuse, and my wiring diagram has a pin 16 at the "data control link" whick is solid orange but no power there. At the data control link I have power at pin 9 which isn't shown in my wiring diagram. ( the wiring diagram link you sent to me to blue oval parts)
I have taken it and used someone else's code reader and no luck. More suggestions?
Thanks!!
I have taken it and used someone else's code reader and no luck. More suggestions?
Thanks!!
Fleet Mechanic
Joined: Sep 2007
Posts: 1,726
Likes: 10
From: down south
I have not gotten further into my stuff, but all my fuses came out as good too. Will be tagging along for this!
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Postmaster
Joined: Oct 2003
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From: SoCal
Pyramid, not sure what you're using for a wiring diagram, but it sounds like it's useless.
The 1999 Ranger "electrical & vacuum troubleshooting manual" will tell you what you should see on EVERY pin at the DLC.
Some pins will be wired to ground or voltage or to the PCM or not used at all.
The EVTM will help you figure out this AND your next electrical problem.
I have the EVTM for all 3 of my Fords & would'nt be without them.
The 1999 Ranger "electrical & vacuum troubleshooting manual" will tell you what you should see on EVERY pin at the DLC.
Some pins will be wired to ground or voltage or to the PCM or not used at all.
The EVTM will help you figure out this AND your next electrical problem.
I have the EVTM for all 3 of my Fords & would'nt be without them.
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From: Oryegone
just wanted to say thankyou
I have been looking at my fuse box for 2 days trying to figure out what fuse i needed to change to get my OBDll to read. I have the official manual to fix my expy, but I dont speak mechanic tech so i was kind of lost checking all the fuses, I thought i had, but after reading this post I went to the manual and boom located the exact fuse, pulled it, and BLOWN. Thanks again.
Holly aka knix
Holly aka knix
Last edited by knix; Jul 25, 2008 at 01:00 PM. Reason: bad wording
Elder User
Joined: Jul 2006
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From: Ohio
I have been looking at my fuse box for 2 days trying to figure out what fuse i needed to change to get my OBDll to read. I have the official manual to fix my expy, but I dont speak mechanic tech so i was kind of lost checking all the fuses, I thought i had, but after reading this post I went to the manual and boom located the exact fuse, pulled it, and BLOWN. Thanks again.
New User
Joined: Jan 2007
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From: Oryegone
I had a "the edge" in it. I was hoping for fuel economy at the time (not preformance) and I am hoping I did something bad when I was tinkering with that that would cause it to blow. OR since this fuse also works one of the cig lighters, My kids use them for misc mobile items, and I am thinking they might have messed it up (blown fuse).
If its not one of those two things, I will be back here searching for. "blown fuse" obdll
The manual 30.00 useful
Not having to go to the mechanic for a rip off repair satisfying
but this webpage is Priceless.
thanks again
Knix
If its not one of those two things, I will be back here searching for. "blown fuse" obdll
The manual 30.00 useful
Not having to go to the mechanic for a rip off repair satisfying
but this webpage is Priceless.
thanks again
Knix
Moderator
Joined: Jan 2004
Posts: 13,851
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From: SW Va
I've got a '99 Ford Ranger 3.0L that has check eng. light on.
Problem is I can't get the code reader to pull up the code. This has happened before and someone told me how to jump 2 of the leads in the link connector then I was able to. But like a dummy I didn't write it down. Anybody got an answer for me. Thanks!
Problem is I can't get the code reader to pull up the code. This has happened before and someone told me how to jump 2 of the leads in the link connector then I was able to. But like a dummy I didn't write it down. Anybody got an answer for me. Thanks!
Check the in cabin "Cigar Lighter" fuse & the fuses sockets, as the DLC power lead also shares this fuse & if it's bad or pulled, the wire is cut, the DLC pin is damaged, ect & not making connection, a scantool will not work as it gets it's power from the vehicle through this circuit.
Post Fiend
Joined: Oct 2005
Posts: 5,242
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From: Kiev, Ukraine
look for OBD-II connector pin assigment and check voltage supply and ground of connector.... Fortunatry '99 ford cars and trucks have OBD-II connected directly to electronic unint w/o gateways (like Mercedes trucks use INS ore Grund Module on later trucks as gateway to communicate with other modules)...
Well. Do you see power LED on your scanner. Does communication led blinks when U try to pull codes and OBD data?
Well. Do you see power LED on your scanner. Does communication led blinks when U try to pull codes and OBD data?
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