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luisaschroeder9

RC Cruise Control Failure

I'm having a perplexing issue with my 2019 Lexus RC gasoline engine. The cruise control system has stopped working, and there's an error message on the speedometer console. Diagnostic scans confirm an error. I've checked the fuse box, but all fuses related to cruise control are fine. I suspect a defective cable or plug connection. The car has 168979 km. Any ideas?

4 comment(s)

gretacrystal32

Whoa, cruise control fail on an RC? Bummer! I had a similar thing happen on mine. Was the error message vague, or did it point to a specific sensor or module? Check the throttle body actuator connection; those plugs can be finicky.

luisaschroeder9 (Author)

Thanks for your response. The error message wasn't very specific, just indicating a malfunction within the cruise control system. Where exactly is the throttle body actuator connection located? I'm not very familiar with the engine components.

gretacrystal32

Yeah, that's the same vague code I got. The throttle body actuator is on the intake manifold, pretty easy to spot. But honestly, if you're not comfy poking around, best bet is to let a workshop handle it. Could save you from making things worse.

luisaschroeder9 (Author)

I appreciate the advice. I took your suggestion and scheduled an appointment with a reputable workshop to diagnose and repair the issue. They identified a defective actuator cable which was causing the issue. The final bill was 95€. Thank you again!

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