zach 03 gs300 Posted June 3, 2017 Share Posted June 3, 2017 Okay so i own a 192xxx mile gs300 its an 03. This past 2 weeks its been missfiring, i think its an o2 sensor. Thats not my real issue. I have a battery light that flashes on i just replaced it too. Then i have an airbag light that comes on an goes away, at the same time my gauge cluster flashes on and stays off for a random amount of time. If i turn on the ac the battery light goes away and the air bag light goes away. Also if i try to use CC it wont work unless i turn on the ac. Also my check engine light is on. Please help i was considering taking it to a lexus dealer to get dianosed. I dont really want too becauase im an automotive student this would be a good learning experience, but it seems a bit out of my league. My guesses are theres a short in the ecu. Quote Link to comment Share on other sites More sharing options...
TrevC Posted June 12, 2017 Share Posted June 12, 2017 With that many electrical faults occurring, I would start with checking the battery for condition....if in doubt, replace the battery but check all the electrical terminals (security, condition) and earth leads first. Quote Link to comment Share on other sites More sharing options...
zach 03 gs300 Posted June 12, 2017 Author Share Posted June 12, 2017 QqI already replaced the battery that was the first thing i did. I found out if i get the battery light on, i can turn off the car and start it up again it goes away and doesnt come back untill i restart the car. The ac actually has nothing to do with it either that just happened to do it as i used the ac. I have a video of what its doing ill try to post it. 1 Quote Link to comment Share on other sites More sharing options...
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