Seeking Advice on Overheating Issue and Check Engine Light in '15 Lexus IS Hybrid

Hey there, I've been in your shoes. I drive a '12 Lexus ES Hybrid and a few months back my ride had a similar issue. Kept showing a 'Cable Connection Defective' signal. After few stumbles, turned out the problem was actually with the wiring harness. It was kinda corroded and causing connectivity issues. One thing I've learned is that cars can throw up problems in ways you'd never expect. If your Lexus is overheating and throwing a check engine light, it's crucial to get it checked out as soon as you can. Didn't take it seriously initially and ended up stranded in the middle of nowhere. Not a fun experience. Doesn't mean it's a bleak situation, though. Once identified, my mechanic replaced the defective harness and it's been running smooth ever since. Bear in mind, this could be a serious concern, depending on what's causing the overheating in your car. As for the anxiety with the mechanic, I totally get it. Had a few run-ins myself. But the thing is, not every visit turns out to be a nightmare. So, my advice to you would be to calm down and get it checked by someone reliable. If it is the auxiliary coolant pump, they should be able to handle it with no major headaches. And if not, they'll troubleshoot till they find the culprits. Cheers hang in there. It's all part and parcel of owning a car!

Hey, really appreciate you sharing your experience. It's annoying how cars can play tricks on you, right? But it's good to know that you got your ES Hybrid sorted out. I'm curious, do you recall how much it cost you to get the wiring harness replaced? And, has anything else popped up, or has your ride been behaving ever since? Thanks again, your words are definitely reassuring!

Hey, always happy to lend an ear. You're absolutely right about cars playing tricks - such sneaky beasts they are! As for the cost, yup, I remember it pretty well. It ran me about 170€ for sorting out the 'Cable Connection Defective' issue. Not exactly pocket change, but worth it to keep my lady running smoothly. Money well spent, in my opinion! Since the visit to the mechanic, my ES Hybrid's been behaving like a dream. Well, mostly. Now, remember how you guessed your issue might be the auxiliary coolant pump? You might've hit the nail on the head there. I did face something similar post the wiring harness fix, but my mechanic sorted that out as well. Let's just say, my ride's learnt to cool off effectively again. Trust me, once these issues are out of the way, Lexus hybrids sail pretty smooth. So, don't lose heart, things get better. Hunt for a reliable mechanic, let them take a good look and fix the issues. Hang in there. Your Lexus will be purring in no time!

Hey, thanks a ton for the advice and support! The cost doesn't seem too steep, considering it would get my Lexus back in shape. I'm definitely feeling more positive about this than I was earlier. And you're right, these things are a part and parcel of car ownership! Guess it's time to hunt for a good mechanic and get this ride purring again. Really appreciate your help! Cheers!