Yes. The low tech scanners can read codes, but you need a more advanced scanner to actually control the different systems.
The info that came out said: to check circuit relay defective or fuse open,check connector and wiring,and Air pump defective or hoses blocked.
Yes. If the pump is not working, then first thing would be to check the fuses. If you have no way to check operation, then go ahead and check all the fuses. If one is blown, that is most likely caused by a bad pump. But, the vales are more common.
Can you tell me what the temperature should be for a recharge for an '04 chevy trailblazer? Air conditioner just doesn't seem cold enough.
What do you mean by temperature. Do you need to know what the temp coming our of the vents should be, or the correct pressures, etc ?
The temperature coming out of the vents.
That depends on the outside temperature and humidity. A good rule of thumb is about 40-45 F on a 90 degree day with low humidity and engine speed at about 2K RPM.
We are about 60F it's humid and about 91 degrees. How many pounds of HG should we be at?
Low side pressure at 2K should be around 35-40 PSI, high side around 250-300 PSI.
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