The obvious question is do I need to communicate over this interface to run the A/C. Perhaps cab temperature is derived here?
Quote:
Originally Posted by Matt L
Trouble codes B1422 and B1459 are: Series interface K1/K2 (resp.) connection to instrument panel.
Don't rely on the low-side pressure telling you anything unless the compressor is running.
I'm not sure how you were trying to add refrigerant with the compressor off. Did you heat the can?
In any case, you shouldn't be trying to use a $10 recharge hose on your $1200 (plus labor!) AC system. Frankly, the auto-parts houses would be doing you a HUGE favor by not selling these kits.
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