QuestionQUESTION: On my '97 Deville, I have been getting a "refrigerant very low" warning with "A/C Compressor Off" warning.
Here's what I've done. Because the warning said very low refrigerant, the first thing we did was add some. The A/C control had disabled the compressor so I pulled the relay and by-passed it with a length of wire. The system took about 1/2 lb. and then the pressures were quite high so we didn't put any more in. The same warnings appear on the dash and the compressor does not start.
So, I suspect that whatever sensor (probably a "Refrigerant Level Sensor") tells the controller to disable the compressor is faulty but I do not know where such a sensor is located.
Can you guide me to the next step?
Thanks,
Phil
ANSWER: Did you CLEAR the code from the computer ?.
---------- FOLLOW-UP ----------
QUESTION: I pressed the "RESET" while the code was displayed on the dash but as soon as the "AUTO/ECON" setting is changed, the display returns.
Is a code set in the engine/body computer? Do I reset it with the diagnostic tool?
Phil
ANSWER: That is NOT the way to clear the code. What code did you get ?.
---------- FOLLOW-UP ----------
QUESTION: The owner's manual identifies "Very Low Refrigerant A/C Compressor Off" as code 12.
AnswerTo CLEAR the codes:
1. Ignition ON. Engine OFF.
2. Simultaneously push and hold for 3 seconds the OFF and WARMER(^) buttons on the climate control panel and release them.
3. Diagnostis codes will appaer in the form of LETTER/NUMBER combinations and will stop at PCM?
4. Push and release the HI(^) button and you will see DATA
5. Keep pushing and releasing the LO(v) button until you see CLEAR CODES.
6. Push and release the zhiz9z6z0 button and you will see CODES CLEAR. Wait 3 seconds and turn OFF the ignition.
7. Wait 2 minutes and try the AC.
