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Punnisher_42
Fordmods - Getting Side Ways
Age:26
Posts: 744
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Location: Tingalpa QLD, Australia
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 Posted: Mon Apr 11, 2005 8:41 pm Post subject: What does pin 34 do... |
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i have a trip computer which i believe may be faulty. it has 12V comming out to the pin that connects to the puter.
Does anyone know if this is correct and that pin 34 on the EEC shorts to ground to pass information to the trip computer?
If someone has a tc handy can you test with a multimeter if their +12 volts at pin 5 with ignition on?
thanks, |
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data_mine
Technical Contributor
Age:27
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Location: Canberra ACT, Australia
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| Posted: Mon Apr 11, 2005 9:27 pm Post subject: Re: What does pin 34 do... |
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| Punnisher_42 wrote: | i have a trip computer which i believe may be faulty. it has 12V comming out to the pin that connects to the puter.
Does anyone know if this is correct and that pin 34 on the EEC shorts to ground to pass information to the trip computer?
If someone has a tc handy can you test with a multimeter if their +12 volts at pin 5 with ignition on?
thanks, |
Dunno if its' the same with an EB, but on EF/EL's the TC gets it data from the cluster, not the EEC. You can't use the EEC's data line.
But maybe it's different for the EBs. |
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XR9UTE
EFI Guru
Age:43
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| Posted: Fri Apr 15, 2005 12:46 pm Post subject: |
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pin 34 is DOL(Data output link) therefore it is a datastream. You need a C.R.O. to look at this data, not a multimeter.
Pete. |
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Punnisher_42
Fordmods - Getting Side Ways
Age:26
Posts: 744
Joined: 10 Nov 2004
Location: Tingalpa QLD, Australia
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| Posted: Fri Apr 15, 2005 3:38 pm Post subject: |
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| XR9UTE wrote: | pin 34 is DOL(Data output link) therefore it is a datastream. You need a C.R.O. to look at this data, not a multimeter.
Pete. |
i just wanted to know if someones working trip computer has 12volts at pin 5. because i have fitted the before and blew the fusible links.
I am pretty sure that they blew because of a bare wire under the dash that i found was arching on the steering column. i then went over the trip computer circutry with the multimeter, and the only thing i found that i thought was weird was that there was 12 volts going to the EEC. |
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XR9UTE
EFI Guru
Age:43
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| Posted: Fri Apr 15, 2005 4:09 pm Post subject: |
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| Punnisher_42 wrote: | | XR9UTE wrote: | pin 34 is DOL(Data output link) therefore it is a datastream. You need a C.R.O. to look at this data, not a multimeter.
Pete. |
i just wanted to know if someones working trip computer has 12volts at pin 5. because i have fitted the before and blew the fusible links.
I am pretty sure that they blew because of a bare wire under the dash that i found was arching on the steering column. i then went over the trip computer circutry with the multimeter, and the only thing i found that i thought was weird was that there was 12 volts going to the EEC. |
A 12v reading would be correct because it is a 0-12v signal. Only when the EEC pin34 is connected would you see a variation in the level but you would only see this with CRO...a multimeter is too slow to respond hence you will only see 12v.
Pete. |
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Punnisher_42
Fordmods - Getting Side Ways
Age:26
Posts: 744
Joined: 10 Nov 2004
Location: Tingalpa QLD, Australia
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| Posted: Fri Apr 15, 2005 8:37 pm Post subject: |
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| ok cool. it just seemed a bit weird and i didn't particularly want to see that grey smoke pouring out of the bonnet ever again. |
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