OBD II

  • Thread starter Thread starter William Liao
  • Start date Start date
W

William Liao

Hi guys,

Does anyone know what software & hardware are needed to retrieve the
diagnostic code from an OBD II system? And is there any chance I can
purchase them from, say, a service centre going out of business?
_________________
Will
'90 Volvo 744 GLT
B230F converted to B230FB (531 Head & VX3 Cam)
 
Per Hauge said:
Try a visit on Andy's site
http://www.andywhittaker.com/
or
http://www.obdii.com/

Gives you a good start

Per Hauge
Click to expand...

Andy didn't reply to my enquiry about buying his hardware...... I eventually
obtained an OBDII reader from a US seller only to discover (from the good
peoples of this very forum) that despite being fitted with an OBDII Socket
clearly marked OBDII my UK spec '850 wasn't OBDII compliant!!!!
 
"LaoFuZhi" <the.real.address [email protected]
thing.not.too.hard.to.work.out> skrev i en meddelelse
Andy didn't reply to my enquiry about buying his hardware...... I eventually
obtained an OBDII reader from a US seller only to discover (from the good
peoples of this very forum) that despite being fitted with an OBDII Socket
clearly marked OBDII my UK spec '850 wasn't OBDII compliant!!!!
Click to expand...
In this thread you asked about hard- and software for retrieving OBDII
codes. I believe the tool you have bought will do so, the interface is not
that difficult to construct.
However if your 850 is not OBDII compliant, obviously you can not use any
tool that was intended to retrive OBDII codes.
You say the connector in the car is marked OBDII. Does it actually say so on
the connector?
I have a 945 year 1998, with the same connector but this is not marked. On
my car the fuel injection unit is not OBDII compliant, but the immobilzer,
the airbag system and the ABS are, and these have their diagonstic ports
terminated in the OBDII connector. Not all diagnostic software is capable of
adressing these units but was only made for communication with the engine
management, like motronic. I think this could be the case with your 850.

Per Hauge
 
Per Hauge said:
"LaoFuZhi" <the.real.address [email protected]
thing.not.too.hard.to.work.out> skrev i en meddelelse

In this thread you asked about hard- and software for retrieving OBDII
codes. I believe the tool you have bought will do so, the interface is not
that difficult to construct.
However if your 850 is not OBDII compliant, obviously you can not use any
tool that was intended to retrive OBDII codes.
You say the connector in the car is marked OBDII. Does it actually say so on
the connector?
I have a 945 year 1998, with the same connector but this is not marked. On
my car the fuel injection unit is not OBDII compliant, but the immobilzer,
the airbag system and the ABS are, and these have their diagonstic ports
terminated in the OBDII connector. Not all diagnostic software is capable of
adressing these units but was only made for communication with the engine
management, like motronic. I think this could be the case with your 850.

Per Hauge
Click to expand...

Actually Per it was someone else who asked about the hardware. My US sourced
OBDII reader does not read the engine codes from my 96? (UK -N Registration)
850 10V 2 litre. And indeed the connector cover is clearly marked OBDII! So
much confusion arose!!!

As it happens (if you recall my other thread) the fault on my 850 was the
coolant temperature sensor. This was given away by the erratic behaviour of
the indicator. I was lucky!! I relapced the sensor on Tuesday and the beast
has behaved herself perfectly over the past two days... I have still to
clear the fault light though but I believe the advice kindly given by both
OBDII (our fellow poster) and an Australian chap will help. The simple
drawing of 'flash' codes via the socket with an LED and load resistor should
do the trick.......

'Tis such a pity though that Volvo chose to save a few measly pennies by not
fully implimenting the standard world wide! One of the few genuine
good-ideas to come out of US legislation!!!
 
LaoFuZhi said:
Actually Per it was someone else who asked about the hardware. My US sourced
OBDII reader does not read the engine codes from my 96? (UK -N Registration)
850 10V 2 litre. And indeed the connector cover is clearly marked OBDII! So
much confusion arose!!!

As it happens (if you recall my other thread) the fault on my 850 was the
coolant temperature sensor. This was given away by the erratic behaviour of
the indicator. I was lucky!! I relapced the sensor on Tuesday and the beast
has behaved herself perfectly over the past two days... I have still to
clear the fault light though but I believe the advice kindly given by both
OBDII (our fellow poster) and an Australian chap will help. The simple
drawing of 'flash' codes via the socket with an LED and load resistor should
do the trick.......

'Tis such a pity though that Volvo chose to save a few measly pennies by not
fully implimenting the standard world wide! One of the few genuine
good-ideas to come out of US legislation!!!
Click to expand...

If it was a really genuinely good idea, it would have been implemented
so any old PC could "talk" to the car's computers through a serial
cable.

--
Mike F.
Thornhill (near Toronto), Ont.

NOTE: new address!!
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
 
If it was a really genuinely good idea, it would have been implemented
so any old PC could "talk" to the car's computers through a serial
cable.
Click to expand...

Quite so Mike. In fact my friend had a Mercedes 180 with just this feature!
RS232 port under a flap!

But at least OBDII is some way along the road to some sort of
'standard'...... WHEN they impliment it that is?
 
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