Chrysler Repair: Chrysler Grand Voyager- Flashing Lights, chrysler grand voyager, slide pots

Question
Hi The lights in the switches to the rearwiper etc all flash when the ignition is first turned on, after awhile they go out, but come on again when the car is switched off and turned on again. Everything appears to work ok how can i stop this from happening, it is a 3.3l v6 1998 UK model. Regards Roger

Answer
CALIBRATION/DIAGNOSTICS TEST ENTRY
TO INITIATE TESTS:
Set Blower motor ON HIGH
Set Mode position to Panel
Set Temperature to Cold (Both slide pots if equipped)
Depress WASH and REAR WIPER button simultaneously for 5 Seconds (Until all LED's light)
RESULTS:
All LED's will turn on for 5 Seconds
Calibration Test is running when REAR WIPER and INTERMITTENT are alternately flashing. Cooldown test is running if A/C and RECIRC are alternately flashing.
Acceptable results is REAR WIPER LED is the only LED flashing. Push Rear Wiper to exit.
After all tests have passed, Calibration Diagnostics and Cooldown can be run separately.