I have not looked into the "technical" aspects of this system... but it
seems like there would have to be two interior temp sensors?
I would "guess" that even in the single (driver) control mode... the
system would attempt to get both interior temp sensors to read whatever
temp
the driver control is set for.
In other words, if you're driving west and the sun is beating in on
the
driver side... it would apply more cold air to the driver side and less to
the passenger side; so that both sides maintained the proper temp?
So, a bad interior temp sensor on the passenger side would still screw
up the blend command when you were in single (driver) control mode?
"Ray" <rgh1016@[EMAIL PROTECTED]
> wrote in message
news:1JWdnRX5Msb7cV_anZ2dnUVZ_hadnZ2d@[EMAIL PROTECTED]
> Thanks to Bon'ne'ville for the requested instructions on accessing OBD
via
> the climate control system.
>
> The only code that was displayed was a history code (105).
>
> I assume the a/c on this vehicle is controlled by a computer or
controller
> that takes sun load, inside temp, and exterior temp into account when
> deciding to what position the blend doors should be commanded. However,
> it would seem to me that in the single (driver) control mode whatever
> position the belnd doors were commanded to would be the same and
therefore
> the air exiting the vents would all be very similiar.
>
> Since both the driver-side blend door motor and the exterior temp sensor
> have been replaced, I am at a loss as to where else to look unless there
> is a problem with the a/c & heater controller unit causing the problem.
> If the controller was defective, I would expect to get an OBD code but
> none are present.
>
> I would appreciate any suggestions you might have on isolating/resolving
> this problem.
>
> Ray
>
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