Check engine and chassis lights turned on

Tiny
DIVIDES
  • MEMBER
  • 2014 INFINITI Q50 HYBRID
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 182,000 MILES
All of a sudden it started with lights on dash, neither were on before. One is check engine the other is chassis I believe. This car does not have adjustable suspension. No codes under engine module. We t throw most modules most if not all say past. Only after I deleted the clutch sensors then the lights went off.
Friday, May 20th, 2022 AT 2:05 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If these codes came out of nowhere then it is most likely caused by a battery voltage issue.

The reason I say that is because these systems are not related to each out but are all dependent on battery voltage.

I am attaching the detail below on a couple of these codes, but chassis codes are not for the suspension system. They are for the driver assistance system. Again, these are most likely due to a low voltage system but if this is a hybrid then that may be the 12-volts system or the high voltage system.

https://www.2carpros.com/articles/car-battery-load-test

Do you have a monitor that tells us the overall state of charge of the high voltage system?

What happens if you clear all the codes? Do they come back immediately? Which ones do and which ones do not?

Take a look at the testing for these. Most of them just say to clear the code and if it comes back then replace the part. Due to you not having any of the communication codes a battery voltage makes most sense.
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Saturday, May 21st, 2022 AT 11:42 AM
Tiny
DIVIDES
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  • 898 POSTS
I cleared them and they didn't come back. It may be a glitch. I agree about battery possibility, but the battery is good. And hybrid charging is great.
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Saturday, May 21st, 2022 AT 12:09 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. That is good. Yes. I am not sure how that would have happened but if they are all gone and don't return then clearly that is not something we want to chase because each one of them is a different part and that will be pretty costly and most likely unnecessary.

If any of them return then we can address them at that point (I know you already know all this, just documenting that point for all others that read this in the future).
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Saturday, May 21st, 2022 AT 12:21 PM

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