Elantra hybrid suspension fault

I had a similar issue with my Hyundai Sonata (also a hybrid, though a bit older). The symptoms you describe – the leaning, the error messages, the headlight issue – sound eerily familiar. It could indeed be a defective cable or plug connection of the component causing the compressor to malfunction. This would be like a kink in a garden hose, preventing the water (or in this case, the air) from flowing properly.

Interesting. When you say similar, how similar are we talking? Was it a pain to diagnose the bad connection? And if so, do you remember where the bad connection was?

By similar, I mean the exact same symptoms. Error codes and all. However, rather than getting my hands dirty tracing wires, I took it to a trusted workshop as my expertise does not extend far enough to work with electricity. They pinpointed a corroded connector on the compressor itself. It was causing intermittent power, and eventually, the compressor gave up. They cleaned it, but advised replacement soon. Given the potential complexities of the hybrid system and suspension components, a professional diagnosis is the safest bet.

Thanks for sharing that. I appreciate the advice. I think I'll take it to the shop. Turns out, you were right! Took it in, and it was indeed a corroded connector at the compressor, just like your experience. Cleaning and re-seating the connector seems to have fixed it for now - all in all 95€. They also recommended replacing the pump soon, but at least I know what to expect.