3 Lights on Dash: DSC, Yellow Brake and EML

[Estoril]

Code shows 5E21.

Anyone have experience with where to start?


Thanks!

[x Spades x]

1) My initial feeling is wheel speed sensor.

Hook up INPA, go to the wheel speed screen and driver. Look to see if on wheel is reading completely different than the others and report back. If so, order the sensor

If not the above (easier of the two)

2) Pressure sensor

Located under the master cylinder.... Unde the reservoir on the right side by the DME box. Clean it... Clean it let it dry and blow it out with air. Dirt gets in them and that's why reading is not good. There are two sensors. Clean both several times with brake cleaner.

[Estoril]

1) My initial feeling is wheel speed sensor.

Hook up INPA, go to the wheel speed screen and driver. Look to see if on wheel is reading completely different than the others and report back. If so, order the sensor

If not the above (easier of the two)

2) Pressure sensor

Located under the master cylinder.... Unde the reservoir on the right side by the DME box. Clean it... Clean it let it dry and blow it out with air. Dirt gets in them and that's why reading is not good. There are two sensors. Clean both several times with brake cleaner.

Thanks for your reply. I pulled codes after a second occurrence. Six - all pointing or referring to Elec throttle potentiometer signal comparison/servomotor/both potentiometers faults/potentiometers signal comparison.

I changed out the front TPS. Then cleared all codes and adaptations. I ran out of good weather to test drive. I'll do that in the morning.

Thanks!

[Estoril]

Update: After TPS replacement, I did two test drives. So far - no errors. 🤞