Driver assist issues

**007Juan** · 10-27-2020, 05:48 PM

Hello everyone:

I've had this issue since the car turned +- 100k miles, it used to do it at about 75mph/120 kmh, but now it starts at 40 mph/65 kmh. The ABS, DST, Hill Assist and ESC turn off all turn off. The only way to reset it is by turning off the ignition and wait until it resets itself. Additionally, when the lights used to turn on at the higher speed, the speedometer needle would move back/forth +- 10 mph, then the driver assists would switch off.

Any idea what could be causing this? Thank you for your help IMG_5978.jpg IMG_5979.jpg IMG_5980.jpg IMG_5981.jpg IMG_5982.jpg

2014 Fiat 500L Trekking manual

**DeSoulo** · 10-27-2020, 10:26 PM

How old is your battery?

**mattsnapz** · 10-28-2020, 07:40 AM

Originally Posted by DeSoulo

How old is your battery?

90% of the time any random issues arise its time for a new battery - even if the one you have 'appears' to be holding a good charge.

good luck

**pasomoto** · 10-28-2020, 12:04 PM

Inconsistent supply of current from a bad cell, fouled connections, open or shorted wiring, or a faulty component.

**007Juan** · 10-28-2020, 12:31 PM

Originally Posted by DeSoulo

How old is your battery?

Battery is brand new, well, a month or two. The problem started before the battery was replaced.

**007Juan** · 10-28-2020, 12:34 PM

Originally Posted by mattsnapz

90% of the time any random issues arise its time for a new battery - even if the one you have 'appears' to be holding a good charge.

good luck

Thanks for the input. I replaced the battery about a month or two ago and the issue was there long before the battery was replaced.

**007Juan** · 10-28-2020, 12:37 PM

Originally Posted by pasomoto

Inconsistent supply of current from a bad cell, fouled connections, open or shorted wiring, or a faulty component.

Thank you, a bad cell you mean as in a bad battery? The issue was there before I replaced the battery about a month or two ago. Is there one component that works all 4 aids? I was thinking either the ABS sensor on either wheel or the ABS module

**DeSoulo** · 10-28-2020, 08:19 PM

what if any codes, are you getting?

**mattsnapz** · 10-29-2020, 09:20 AM

And what date does the battery have on it? Some have been sitting for months

**007Juan** · 10-29-2020, 12:31 PM

Originally Posted by DeSoulo

what if any codes, are you getting?

No codes that I am aware of. I plugged in a scanner when I got a CEL and got a code for something different-P0299-which comes on usually when the ambient temp is high. Other than that, the scanner did not show anything related to the driver aids. Or maybe I didn't know how to look for them specifically