Terrible Tom <SilverEightynine@aol.com> wrote:
: jon@dakota-truck.net wrote:
:> Terrible Tom <SilverEightynine@aol.com> wrote:
:> : James Calder wrote:
:> :> Is the diagnostic connector for an OBD1 '93 Daokota and OBD2 '96 Dakota the
:> :> same?
:> :> : Nope - not the same at all.. the data link on OBDI Daks is a plug on the
:> : passenger side at the firewall. All OBD2 plugs are under the dash on
:> : the drivers side.
:>
:>
:> That's correct, in fact, that's actually a part of the OBD-II
:> standard. IIRC, OBD-II mandates that the connector must be within
:> three feet of the steering wheel. So, usually they end up being
:> on the driver's side, under the dash simply because most vehicles
:> don't lend themselves to having the port being in the dash itself,
:> and unless its a very small car, putting the port on the passenger
:> side is probably going to be stretching things a bit.
:>
: there are exceptions to that rule however Jon, in my time at the Zone,
: I've come to know that heh. VW Jetta's (mid to late 90's at least) have
: the test port located behind alittle plastic rectangle cover in the
: center portion of the dashboard - to the right of the 12v lighter/power
: outlet.
Yep, note that I did say they "usually" end up being on the
driver's side. :-) There's nothing that prevents a manufacturer
from putting the connector anywhere they want on the dash (or
above it, probably), as long as it meets the OBD-II distance
requirement. Its just that dash space tends to be valuable so most
manufacturers are going to prefer to stick the connector down under
the dash.
: And on - what I think was an Acura or a Honda, little red two door 4
: banger coupe, it is on the passenger side of the center of the dash -
: just about where the passengers left knee would be.
In a car that size, that location probably is within the distance
requirement.
: So... not everyone follows the drivers side dash rule.
True. Technically there is no rule that says it has to be on
the driver's side, its just that when you restrict the area that
can be used to a 3' sphere, extending out from the steering wheel,
most of that area is naturally on the driver's side, so one would
statistically expect the connector to appear there the vast majority
of the time.
: Older Ford OBDI setups are the worst to deal with. The connectors are
: NEVER in the same places between models... The models that have that
: system are older now... so they are usually corroded and nasty from the
: elements under the hood...
That is no doubt why the connector location was mandated in the
OBD-II standard; to make it easier to find.
--
-Jon-
.- Jon Steiger --- jon@dakota-truck.net or jon@jonsteiger.com -.
| 67 Dodge Coronet, 70 Plymouth Barracuda, 76 Peugeot TSA |
| 78 Dodge B100, 90 Dodge Dakota Convertible, 92 Dodge Ram 4x4 |
| 96 Dodge Dakota, 96 Suzuki Intruder 1400, 96 Kolb FireFly |
| 99 Jeep Cherokee 4x4, 2001 Dodge Ram 3500 CTD |
`--------------------------------- http://www.jonsteiger.com --'
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