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problem with ob2/ecu?

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  #1  
Old 05-09-2012, 12:05 PM
boost-addict's Avatar
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Default problem with ob2/ecu?

so to start, when i bought the car it had the abs warning and as i know there common i wasn't fussed, any how looking though paper work it shows a remapping centre had trouble connection to the system and says configuration mismatch, was quite confused so emailed the company and they basicly said

" see if it has any extra wiring and box though before the fuel temp sensor.

I know it seems a silly question but did you have the keys at the 2nd switch so the ignition on?

You could have faulty obd2 wiring perhaps, but id try another scanner first before id go testing wiring. Not nesisarily dealer level equipment but a independent garage might do a scan for smaller money.
"

well had it on a diagnostic unit that a friend bought home from work (bosch) and the unit couldn't find any thing, he went directly to the abs system and although it ticked from 0/8 to 8/8 it still said no systems found


so what's my problem here? wiring in the ob2 plug broke or some thing else? were does the ob2 plug go to? direct to ecu? wondering if i buy a ob2 wiring harness and see if i can then get some thing or maybe buy a ob2 kit to the laptop and see if that works? any info or troubleshooting would be good, are you able to test the plug with a multimeter?
 
  #2  
Old 05-09-2012, 06:22 PM
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If the abs light is on you could have a bad abs module. Try disconnecting it & then retry to communicate with the ecm. The abs module could bringing down the can citcuit.
 
  #3  
Old 05-09-2012, 06:29 PM
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fuse by chance? theres a fuse for the obd2 port
 
  #4  
Old 05-10-2012, 05:32 AM
boost-addict's Avatar
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ah ok do you know the fuse number? and illl try that, but will have to travel quite far to mess about with it on his system again. maybe just take it to main dealer?
 
  #5  
Old 05-10-2012, 08:09 AM
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dealer will charge you 100 to consider looking at it then ponder about your problem and charge you x amount of dollars. the fuse is in the side panel when you open the drivers door.
 
  #6  
Old 05-10-2012, 08:35 AM
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The fuse is usually on the same circuit as the power outlet/cigarette lighter. If you have power there it should be good. Otherwise get out a test light & see if you have power across all the fuses.
 
  #7  
Old 05-25-2012, 01:15 PM
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if your car is European it doesn't support OBD II protocol
 
  #8  
Old 05-25-2012, 01:42 PM
FASTER's Avatar
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Fuse in back of head unit.
 
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