Flashing lights - control set

Tiny
KEREN3010
  • MEMBER
  • 1998 CHRYSLER GRAND VOYAGER
Automatic 83,150 miles.

My 'air conditioning' button, 're-circulation' button, 'rear wiper' button and 'intermittent rear wiper' button are all flashing yellow lights. All are still working as they should but lights are flashing instead of being 'on' or 'off. Can anyone help?
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Thursday, August 7th, 2008 AT 10:15 AM

6 Replies

Tiny
BMRFIXIT
  • EXPERT
Battery was disconnected?
HVAC failed cool down test and need to be retest and calibrated.
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Saturday, August 9th, 2008 AT 12:25 AM
Tiny
KEREN3010
  • MEMBER
Battery has not been disconnected but had gone flat and we jump started it. What is HVAC cool down test? How to rectify this problem?
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Friday, August 22nd, 2008 AT 5:48 PM
Tiny
BMRFIXIT
  • EXPERT
Cool down test:

1. During this test, the system will monitor evaporator temperature sensor. The A/C system must be able to bring evaporator temperature down to a predetermined minimum level in less than two minutes.
2. To enter cool-down test, set parking brake. Ensure evaporator is at room temperature. Start and warm engine to normal operating temperature. With engine idling, turn blower switch to high. Turn mode switch to panel. Open all A/C outlets. Move temperature lever to full cold.
3. Press and hold rear wash and A/C buttons simultaneously for five seconds (until all LED's illuminate). All LED's should illuminate for five seconds. A/C and re-circulation button LED's will alternately flash during cool-down test. If A/C and re-circulation button LED's are flashing simultaneously, cool-down test has failed. Go to cool-down test failed.
4. After approximately sixty seconds, if only rear wiper button LED is flashing, calibration is successful and system is okay. If rear wiper and intermittent rear wiper button LED's are flashing, Diagnostic Trouble Codes (DTC) are present, see reading diagnostic trouble codes under self-diagnostics.
5. To exit cool-down test at any time, press rear window defogger button, rear wiper button, re-circulation button, or cycle ignition off and then on. Test will automatically terminate fifteen minutes after cool-down test is entered.
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+5
Friday, August 22nd, 2008 AT 7:49 PM
Tiny
KEREN3010
  • MEMBER
Been told that A/C has to be re-gassed before calibrating. So went to garage to get A/Con re-gassed and the pressure went too high that mechanic had to stop. The guy said if he had filled it up it would have caused damage to the pump and alternator. Apparently the pump is on its way out! Is this right?
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Wednesday, August 27th, 2008 AT 6:53 PM
Tiny
BADBO
  • MEMBER
Never heard of such a thing. Maybe your mechanic needs to find the problem. If the high side was too high it has poor airflow through the condenser, full of bugs, leaves, grass or condenser is plug inside and needs to be replaced. Or expansion valve is stuck and needs replacing or cooling fans are not on high speed we the head pressure is too high.

Badbo
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Wednesday, August 27th, 2008 AT 7:57 PM
Tiny
BMRFIXIT
  • EXPERT
You need to find a different mechanic from the sound of it he is not qualified to do AC work.
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Wednesday, August 27th, 2008 AT 8:23 PM

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