juliafire5

Lexus UX Engine Power Loss

Having trouble with my 2022 Lexus UX hybrid. It's got 168,095 km on it. Recently noticed a significant reduction in engine power. Ran a car diagnostics test, and there's an error stored related to the engine control unit. Suspect it might be a defective main relay. Anyone else experienced something similar with their UX?

A 2022 Lexus UX hybrid with 168,095 km is experiencing a significant reduction in engine power. A diagnostic test revealed an error related to the engine control unit, suspected to be caused by a defective main relay. A similar issue was resolved by replacing the faulty relay, which was confirmed as the solution in this case as well.

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4 comment(s)

Whoa, that sounds familiar! I own a UX too, though I can't say I've put quite as many kilometers on it as you have. I had a similar issue a while back – car felt like it was struggling, and the diagnostics threw up an ECU error. What kind of code did you get?

Thanks for the quick reply! The code I got was P0606 - Internal Control Module Processor. Did you get the same one? And if so, what ended up being the solution for you?

Yep, P0606 rings a bell! Honestly, I messed around with it for a bit, checking fuses and stuff, but eventually just bit the bullet and took it to a workshop. Turned out to be a faulty relay messing with the ECU. They sorted it out pretty quick.

Thanks a lot for sharing your experience! That's really helpful. I'll probably take it to a workshop then. It turned out that the main relay was defective, and it cost me 120€ to fix it.

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LEXUS

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