Random MIL & Brake Warning Lights (ESC/ABS) after Polestar/VMax flash - V60 MY21 Mild

Random MIL & Brake Warning Lights (ESC/ABS) after Polestar/VMax flash - V60 MY21 Mild - Printable Version

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Random MIL & Brake Warning Lights (ESC/ABS) after Polestar/VMax flash - V60 MY21 Mild - vec.italy - 07-24-2026

Hi everyone,
I'm looking for some advice on a recurring issue with a customer's car after flashing the CCF.
Vehicle: Volvo V60 MY2021 (B-Series Mild Hybrid, Sensus).
Modifications Applied:

ID 044: 250 km/h (VMax)
ID 374: 02 (Polestar Optimization)
ID 057: 03 (Drive Mode Digital UI on IHU - No physical scroll wheel present)

The Issue: The flash goes through perfectly and the car runs great. However, while driving, the car randomly throws the Check Engine Light (MIL) along with various brake/chassis warning lights (ESC / ABS / Parking Brake). Important note: the car does not go into Limp Mode and there is no power loss. Polestar mode works perfectly, but the dash lights up like a Christmas tree.
What I've already tried: I know that ID 057 = 03 without the physical wheel triggers the

Code:
ECM-U230056

ghost code, but that usually doesn't trigger the dashboard MIL. To fix the brake lights, I have performed the "ABS Clear Config" in the OrBit Services tab multiple times, followed by "Clear All DTCs" and a full 15-20 minute Deep Sleep (key fob far away). Unfortunately, the calibration doesn't seem to stick, and the warnings come back.
My questions for the community:

Has anyone experienced this specific VDDM/brake module freakout on the newer B-Series / 48V architectures?
Could the brake warnings be chained to the

Code:
ECM-U230056
mismatch code? Would reverting ID 057 to

Code:
01
(sacrificing the IHU button) permanently solve both the MIL and the ABS/ESC warnings?

I have already emailed support with the modified profile, but I wanted to see if anyone here has cracked this yet.
Thanks in advance!

Johnny.

RE: Random MIL & Brake Warning Lights (ESC/ABS) after Polestar/VMax flash - V60 MY21 Mild - Braxia - 07-24-2026

I am with the same spec car and do not have any of those issues. MY21 V60 B4 Diesel Sensus Momentum Pro from Germany. The only difference is that i have the roller from factory.

RE: Random MIL & Brake Warning Lights (ESC/ABS) after Polestar/VMax flash - V60 MY21 Mild - vec.italy - 07-24-2026

(3 hours ago)Braxia Wrote: I am with the same spec car and do not have any of those issues. MY21 V60 B4 Diesel Sensus Momentum Pro from Germany. The only difference is that i have the roller from factory.

Thanks for the reply!
The physical roller from the factory is definitely the key difference here. Since your car has the hardware, you don't get the ECM-U230056 mismatch DTC that I am currently dealing with.
Just out of curiosity, did you also flash the Polestar Optimization (ID 374: 02) along with your other mods?
I am trying to isolate whether my dashboard ABS/ESC warnings are a direct chain reaction from the missing physical wheel (having ID 057 set to 03 without the hardware), or if it's some specific conflict involving the Polestar flash on the B-Series network.

Thanks again for the feedback!