Where is Ign Coil D

Ignition coil D is located on top of cylinder #4, which is the middle cylinder on the bank towards the front of the vehicle. There may be a service bulletin on this condition so it might be worth it to take it to a Lexus dealer, especially if your vehicle is still under the basic or emissions warranty.

Thanks much for your help, Ray

Don

You're welcome. To be a little more specific on the service bulletin, I found bulletins regarding the same diagnostic trouble code (DTC) on 2008 model year RX models so there may be bulletins for your model year. The component should be covered by the basic warranty and would probably be covered if the vehicle failed an emissions test due to the condition.

Swapped coils of cyl 4 and 6, and the DTC moved to the other cyl. So, bought a replacement coil and it works just fine now. Regarding the TSB's, the vehicle is out of warranty, so I'm on my own.

Thanks, Don

Thanks for the feedback, glad to hear that the problem is solved!

I would like to thank Ray O for all the good information, suggestions, and solutions, he has offered on this news group. A job well done, I will buy you a few good beers if I ever find you.

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You are very welcome!! I enjoy solving puzzles, and fixing cars is kind of like solving puzzles.