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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