Symptoms and solutions for abnormal behavior of a Toyota Corolla Diesel 2016

Hi, I had a similar problem with my 2013 Toyota Auris, except the check engine light was constantly flashing and not just lit. It was actually the wiring harness and the fuel filter heater plug that was damaged. It was already a serious problem because without a proper heater the fuel filter can freeze the diesel in winter, which can cause these symptoms. It is important that you go to a professional mechanic as soon as possible. In my case, it helped to check and clean all contacts and the ground wire. The mechanic also replaced the wiring harness and the plug. It was a lengthy process because the fault diagnosis device didn't find the fault straight away. But once that was done, the car ran like clockwork again. Good luck with that!

(Translated from German)

Hello, many thanks for the information. Sounds like quite a job. Do you happen to remember how much all that fun cost you? And have you had any similar problems since then or does everything seem to be fine again? I hope it won't be as complicated for me. Have a nice day!

(Translated from German)

Hello, yes, it was a bit of a squeal and not cheap. I remember that I paid €110 to fix the wiring harness/plug for the fuel filter heater. But since the visit to the mechanic, the defect in the fuel filter heater has been rectified and the little Toyota is purring like a kitten again. No more problems of this kind, everything runs like clockwork. I'll keep my fingers crossed that it doesn't get too complicated for you! Take care!

(Translated from German)

Hi, Oh boy, that sounds like a lot of money, but if it helps and everything works again afterwards, then it's worth it. Thank you for your detailed explanations and experiences! Your words give me a little more confidence in my upcoming visits to the mechanic. Have a nice day and thanks again for everything!

(Translated from German)