98 Ply Voyager - flashing cluster lights

Ever since I installed a new battery, the rear window cluster lights keep
flashing. The rear wiper switch, intermittent rear wiper, rear window
defroster, & recirculation control keep flashing. Everything works but
how do I stop the flashing?

 

You need to recalibrate the system
CALIBRATION/DIAGNOSTICS TEST ENTRY
TO INITIATE TESTS:
a.. Set Blower motor ON HIGH
b.. Set Mode position to Panel
c.. Open all A/C outlets
d.. Set Temperature to Cold (Both slide pots if equipped)
e.. Depress WASH and REAR WIPER button simultaneously for 5 Seconds (Until
all LED's light)
RESULTS:
a.. All LED's will turn on for 5 Seconds
b.. Calibration Test is running when REAR WIPER and INTERMITTENT are
alternately flashing. Cooldown test is running if A/C and RECIRC are
alternately flashing.
c.. Acceptable results is REAR WIPER LED is the only LED flashing. Push
Rear Wiper to exit.
d.. After all tests have passed, Calibration Diagnostics and Cooldown can
be run separately.
COOLDOWN TEST ENTRY
TO INITIATE TESTS:
a.. Set Blower motor ON HIGH
b.. Set Mode position to Panel
c.. Open all A/C outlets
d.. Set Temperature to Cold (Both slide pots if equipped)
e.. Depress WASH and A/C simultaneously for 5 Seconds
NOTE: Prior to start of test, If the evaporator is already cold, the system
will fail test. To correct, operate system with A/C OFF and the blower motor
ON high for three minutes prior to starting test.

RESULTS:
a.. All LED's will turn on for 5 Seconds
b.. Cooldown Test is running when A/C and RECIRC. are alternately
flashing. If A/C and RECIRC. are flashing simultaneously, Cooldown has
failed.
CALIBRATION DIAGNOSTICS AND COOLDOWN ABORT
Test can be aborted by doing one of the following:

a.. Depressing Rear Window Defogger, RECIRC and Rear Wiper buttons.
b.. Cycling Ignition OFF and then ON.
c.. Control will automatically abort after 15 minutes from the time
Calibration Diagnostics and Cooldown was entered.
The HVAC control module will return to normal operation or may indicate
unsuccessful Calibration Diagnostics or Cooldown test by LED's flashing
simultaneously.

EEPROM DATA
Calibration Diagnostics, Cooldown Status and evaporator temperature Fin
Sensor values are stored in an EEPROM memory internal to the control. The
microcomputer within the HVAC control module uses this information:

a.. To determine if Cooldown needs to run
b.. For proper position of the Heater-A/C unit assembly doors
ACTUATOR CALIBRATION AND DIAGNOSTICS


Actuator end point calibration takes approximately 60 seconds. The REAR
WIPER and INTERMITTENT LED's will flash alternately during the test. The
control will cycle the Blend actuator(s) to the Heat stop first then back to
Cold. After the Blend actuator(s) have been calibrated the Mode actuator
will be cycled to Defrost and then to Panel. Successful calibration is
defined as actuator travel falling within their minimum and maximum limits.