I replaced battery and the lights flash on the.

  • 149,000 MILES
I replaced battery and the lights flash on the ac, air and the others in the cluster however no other lights are flashing and everything seams to work. Is their button needs to be reset be cause it lost
power during change out?
Monday, April 8th, 2013 AT 8:42 PM

1 Reply

Yup. You're supposed to use a memory saver to avoid the extremely frustrating reprogramming procedure. Here's the procedure from my web site:

Actuator Calibration Test (engine running)
1. Set blower motor on High.

2. Set Mode position to Panel.

3. Open all AC outlets.

4. Set temperature to cold.

5. Press Wash and Rear Wiper buttons at the
same time for five seconds until all leds flash.

5. All leds will turn on for five seconds.

6. The calibration test is running when the Rear
Wiper and Intermittent leds are flashing

7. Acceptable result is the Rear Wiper led is the
only one flashing. Press Rear Wiper to exit. At
this point, the calibration and cool-down
procedures can be run separately.

Cool-Down Test
1. Set the blower motor on High.

2. Set mode to Panel.

3. Open all AC outlets.

4. Set the temperature to cold. (See note 1 at the

5. Press Wash and AC at the same time. (See
note 2 at the end).

6. All leds will turn on for five seconds.

7. Cool-down test is running when AC and
Recirc. Leds are flashing alternately. If they
flash at the same time, the test has failed.

8. To abort the test, press the Rear Defogger,
Recirc, and Rear Wiper buttons or cycle the
ignition switch off and back on.

9. The manual doesn't say what to do next, but
as I recall, if the test passes, only the AC led
will be flashing. Press it to exit the procedure.

Note 1: Then there's a note in the manual that says the test will fail if the ac evaporator is already cold. HUH? "To
correct, operate system with AC OFF and the blower motor on high for three minutes prior to starting the
test". That's probably why I remember putting the temperature to hot before starting this test.

Note 2: For the Cooldown test, the manual say to "Press Wash and AC at the same time". Later, it says "Cool-
down test is running when AC and Recirc leds are flashing alternately". To start the test, I think they meant
press the AC and Recirc buttons, not the AC and Wash buttons. Try it both ways if you have to.

The cool-down test is confusing at best. I had the best success by running the air conditioning for a few minutes before starting the procedure, and placing the temperature control on HOT. As soon as the two leds start flashing alternately, move the control immediately to COLD. The computer is looking for an 80 degree temperature drop within 20 seconds at the in-car temperature sensor. This is usually pretty easily accomplished as long as the AC is working. Typical duct temperature under full heat is over 140 degrees, and ideal temperature under full AC / cold should be around 40 degrees. If multiple attempts to pass this procedure fail, try repeating it immediately after a ten minute drive at highway speeds. These radiators are so efficient that they may reduce engine coolant temperature too low even without the electric radiator fan turning on. Driving on the highway will bring the engine temperature up for a higher starting point.
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Monday, April 8th, 2013 AT 9:10 PM

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