Hello,

While researching a "check air conditioner" issue, I have found threads discussing the processes below, but cannot determine if they apply to the ES. Is anyone aware if they do? Apparently, changing the battery and/or alternator can require a "reset" to the AC system. My AC doesn't work after the alternator and battery were changed and the shop that did the work is not out of business, so I am attempting to correct on my own.

1. Warning light reset - apparently by jumping 2 of the pins in the in the OBD port, warning lights such as the check air conditioner and brake pad lights (on the LS) can be reset.

2. AC diagnostics - by holding the AUTO and recirc buttons while starting the car, codes can be retrieved.

Thank you in advance.

 

re ac diagnostic, maybe this will help

 

Thank you very much

 

further to my post above checkout this thread for a run through of diagnostics and the meaning of the DTC codes which may appear

https://www.clublexus.com/forums/per...eed-codes.html