FJ Cruisers of Northern California

OBD-2 codes

Hi, I am writing a program to read out the OBD-2 info out of the FJ and display on a computer, using a 13$ interface bought on ebay. I now have various parameters like speed, RPM, temperatures of intake and coolant, MAF etc etc

Do you know if there is any non-standard PID that may be of specific to the FJ (or Toyota) that can deliver interesting information?

I am NOT trying to do an application do "clear codes" or deal with any engine malfunction. Only to get and display data as if it was an "extended" dashboard.

Thanks!

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Replies to This Discussion

Permalink Reply by cypilk on March 18, 2010 at 10:27pm

You are a genius

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Permalink Reply by Boss73 on March 18, 2010 at 10:58pm

Dude could you clear my fault codes ?? LOL

Thats a great idea.. But I am curious, if you do not plan on changing any settings than what is the advantage ??

Unless you are going to use this just as a display, which is cool cuz your writing a program to accomplished.......

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Permalink Reply by manoweb on March 19, 2010 at 12:17am

There is not much one cat "set". At least, that I know of, with the standard "PID"s. Yes it is like a kind of "monitoring tool" only.

PS if you need to "clear a code" I have a ScanGauge II we can use next time! But clear the code only will not fix issues :)

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Permalink Reply by Boss73 on March 19, 2010 at 12:42pm

Naaaa I do not have a fault I was just messing with you... LOL

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Permalink Reply by Estysalinas on March 19, 2010 at 7:25am

That sounds awesome! I run a netbook in my FJ so it would be interesting to be able to monitor vitals with it as well! Let me knwo how it goes.

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Permalink Reply by manoweb on March 19, 2010 at 11:41am

OK begin to get one of these :)

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370209877283

I am going to add a mileage calculator and a decent trip computer. I will upload a screenshot as soon as possible. Which OS do you run on your netbook?

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Permalink Reply by cypilk on March 19, 2010 at 11:21pm

Interesting!

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Permalink Reply by Estysalinas on March 20, 2010 at 7:48pm

A really stripped down version of XP, mostly because the topo software i run uses it.

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Permalink Reply by manoweb on March 21, 2010 at 12:36pm

Ok I will have to try to compile it for windows also. Yesterday I let my friend drive so I could test and experiment a bit (without the engine running it's difficult to "understand" the meaning of all the parameters).
The prototype works quite well so far. I will add a screenshot when it's more graphically acceptable.

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Permalink Reply by daPitbull on March 20, 2010 at 7:18pm

what is a PID?

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Permalink Reply by 5AND5TORM on March 20, 2010 at 11:43pm

OBD-II PIDs
From Wikipedia, the free encyclopedia

P-codes, or OBD-II PIDs On Board Diagnostics "Parameter IDs", are codes used to request data from a vehicle, used as a diagnostic tool. These codes are part of SAE standard J/1979, required to be implemented in all cars sold in North America since 1996.

Typically, an automotive technician will use PIDs with a scan tool connected to the vehicle's OBD-II connector.

* The technician enters the PID
* The scan tool sends to the vehicle's bus (CAN, VPW, PWM, ISO, KWP. After 2008, CAN only)
* A device on the bus recognizes the PID as one it is responsible for, and reports the value for that PID to the bus
* The scan tool reads the response, and shows it to the technician