2022 SEL with 92k, multiple codes

[Summers22]

Trying to help my daughter with her car. Multiple codes, reduced power and very sluggish acceleration up until 40mph. No check engine light. List of codes:

 

ABS Antilock braking system :

DTC Description Status

U0140:00:20 Lost Communication With Body Control

Module

CMDTC

U0265:00:20 Lost Communication with Image

Processing Sensor A

CMDTC

U2107:00:68 Collision Mitigation By Braking CMDTC

U3003:16:60 Battery Voltage CMDTC

 

PCM Powertrain Control Module:

DTC U0284:00:68 Description Lost Communication with Active Grille Air

Shutter Module 'A' CMDTC

 

[1004ron]

The symptoms you describe suggest it was in "Limp Mode" but if that was the case the CEL would be on and a code set.

 

What are you using to scan for codes?

[Summers22]

I am using a TopDon Artidiag500. Thats the odd thing, no check engine light. Part of me things it could be a torque converter issue and a transmission drain and fill would help. Google AI says all symptoms point to a bad battery, I did replace it in August of 25 and did the BMS reset with the same scanner.

[1004ron]

Based on many reports here and elsewhere I don't have much confidence in scan tools other than Forscan.

 

If there really isn't any related codes then it will need more in depth diagnostics - display live data such as fuel trims etc.

[Summers22]

O'Reilly says bad battery, going to get it replaced now.

[1004ron]

21 hours ago, Summers22 said:

reduced power and very sluggish acceleration up until 40mph. 

 

 

47 minutes ago, Summers22 said:

O'Reilly says bad battery, going to get it replaced now.

If the alternator is working I don't see how the bad battery will cause the symptoms you describe.