99 Voyager Flashing a/c and recirc LEDs after battery change

Just changed my battery and now have flashing a/c and recirc LEDs. Pressed
rear wiper and rear washer buttons and all LEDs flash for approx 5 secs,
then rear window wiper LED flashes. I press that button and the a/c recirc
LEDs start flashing again. One website says to run cooldown test. Don't
know what that is. Any help would be greatly appreciated!
Thanks,
Hal

 

This is from my 96 manual, it should be the same....

Somehow your heating and air conditioning system got into
calibration/diagnostic or test mode, and seem to be indicating a failed
system. Normally this is accomplished by pressing a particular combination
of these buttons and holding for 5 seconds. The tests can run for many
minutes (up to 15) as it checks/calibrates all the motor/actuators and tests
the cooldown ability of the AC.

Results and failures are shows as various combinations of flashing LED's on
these same button lights.

For test abort you can turn ignition off, then on, or the test should abort
after 15 minutes if still not passed. It will however be flashing the
failure code that caused it not to pass within the 15 minutes.

Test mode and failure modes are differentiated by either the LED's flashing
alternately or simultaneously.

Try to run the test purposely to see if it will pass and reset.

Set Blower to HI
Set the Mode to Panel (all the way to the left - CCW)
Set the temperature to full Cold (both slides if dual zone equipped)
Depress and hold the Wash and Wipe buttons simultaneously and hold for 5
seconds (until all LED's light up)

First Wipe and Intermittent LED's should alternately flash during Cal Test
Then after a few minutes AC and Recirc LED's should flash alternately during
cooldown test
If both tests pass - all LED's will go out and that's the end of it.

If it does not pass, then you really either need the manual to use the
buttons and flashing LED codes to dig deeper into the failure codes for
specific components or take it into a shop for them to diagnose and repair.

Failures flashing LED's can indicate several potentiometers, temp sensors,
actuators, control panel etc.

 

Thanks Mike. I'll try the tests in the morning and let you know how it turns
out. I did drive the van to work and noticed that the lights stopped flashing
at the 15 minute mark. Thought I was home free until they flashed again
on the way home this evening.
Thanks again,
Hal

 

Mine did same thing for the same reason.. Did what they said here but the
rec and other one next to it kept flashing maybe A/C can't remember,,,
But I just hit them all at the same time... kind of like control -
alt -delete the wipe, wash and rec all at once and they stopped, hasn't
done it again since.

 

If you run the tests and always get stuck with flashing lights - there is a
failure in the system. If cool down fails, then the AC system can not create
the required airflow temperature drop in the system. (Air not cold enough).
Many other combinations of flashing lights point to different failures
within the system.

If you press more than one button at a time on the panel, you could be
accidentally entering the test mode without realizing it.

Once the test exits, as far as I know, it should not restart on its own.