ace242 Posted May 7, 2009 Share Posted May 7, 2009 I have a 2006 lexus is250 my warning lights came on it was two caution lights and on the screen was saying system check. It was never doing that before if I reset the ecu will that help or try other means please help Quote Link to comment Share on other sites More sharing options...
smooth1 Posted May 7, 2009 Share Posted May 7, 2009 It depends on why the cel went off in the first place. I'm not a big fan of just ressetting the ECU when the cel goes off, as it also erases the event log, which the techs can look at to determine if there is really a problem, or if a sensor just needs to be cleaned or replaced. If the cel comes back,( the warning light comes back on), I would atleast try to have the car scanned first and find out what code the car is throwing. That code will tell you what the problem is. Then you can make decisions on what to do next from there. Quote Link to comment Share on other sites More sharing options...
ace242 Posted May 8, 2009 Author Share Posted May 8, 2009 thank you for the advice also i was wondering my ac was coming out hot i couldn't find the hose to gas it up can you show me and tell me where is it located in the engine Quote Link to comment Share on other sites More sharing options...
smooth1 Posted May 8, 2009 Share Posted May 8, 2009 thank you for the advice also i was wondering my ac was coming out hot i couldn't find the hose to gas it up can you show me and tell me where is it located in the engine Is it out of freon? The ac system is a closed system. If it's low or out of freon, you have a leak and you need to have that fixed first. Just putting in more freon won't solve that. Quote Link to comment Share on other sites More sharing options...
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