Battery codes in ABS along ESC notification and power steering assist off?

Tiny
CAPTKCP
  • MEMBER
  • 2019 DODGE CHARGER
  • 3.6L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Last week I got a notification through my splash screen stating service ESC it would come up and then go off very quick. I checked for DTC codes, and I didn't have any on the engine. I then checked the ABS and got a c2101-17 high battery voltage, and I also got a c2100-16 low voltage. My car's voltage is 14.4 to 14.7. I replaced the battery and its sensor. Codes still remain. The car ran fine most of the week and has started giving me the ESC again the past two days. Today it started showing the Power steering assist is off. I'm hitting a dead end as none of these issues are throwing any codes.
TiA
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Tuesday, January 23rd, 2024 AT 6:23 PM

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Tiny
BORIS K
  • MECHANIC
  • 709 POSTS
Hello,

First, I would suggest checking the voltage at pins 1, 6, 25 at the ABS control module.
Pins 1+25 are constant 12V supply and pin 6 is ignition 12V supply from run/start relay.
It should show battery voltage.
This can be done using a voltmeter.
If in order next check the ground at pin 13, black wire.
Use a test light to load test the connection, the bulb should glow bright.

How to use a voltmeter:
https://www.2carpros.com/articles/how-to-use-a-voltmeter
and
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

If the supply voltage and ground is good, then you have a possible faulty ABS/ESC module.

Cheers, Boris
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Wednesday, January 24th, 2024 AT 4:31 AM

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