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.
Multiplex Integrated Control DTCS
's MICU internal (EEPROM) error DTC B11A2 Passenger's MICU Internal (Eeprom) Error DTC B1036 Driver's MICU IG1 line input error DTC B11C7 Passenger's MICU Ig1 Line Input Error DTC U0155 Driver's MICU Lost Communication With Gauge Control Module DTC U0155 Passenger's MICU Lost Communication With Gauge Control Module DTC U0199 Driver's MICU Lost Communication With Door Multiplex Control Unit DTC U1280 Communication Bus Line Error (Bus-Off) DTC U1282 Passenger's MICU Lost Communication With Driver's MICU DTC U1283 Driver's MICU Lost Communication With Passenger's MICU
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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