Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC Descriptor
- DTC B101E 00
-
Electronic Control Unit Software Malfunction
- DTC B101E 31
-
Electronic Control Unit Software Internal Checksum Error
- DTC B101E 32
-
Electronic Control Unit Software General Memory Malfunction
- DTC B101E 41
-
Electronic Control Unit Software Not Programmed
- DTC B101E 42
-
Electronic Control Unit Software Calibration Not Programmed
- DTC B101E 43
-
Electronic Control Unit Software EEPROM Incorrect Programming
- DTC B101E 44
-
Electronic Control Unit Software Security Access Not Activated
- DTC B101E 45
-
Electronic Control Unit Software Variant Not Programmed
- DTC B101E 46
-
Electronic Control Unit Software Configuration Not Programmed
- DTC B101E 47
-
Electronic Control Unit Software VIN Not Programmed
- DTC B101E 48
-
Electronic Control Unit Software Security Code Not Programmed
- DTC B101E 4A
-
Electronic Control Unit Software Programming Checksum Error
- DTC B101E 4B
-
Electronic Control Unit Software Calibration Not Learned
- DTC B101E 4C
-
Electronic Control Unit Software DTC Memory Full
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.