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
; B1002 Multiplex Integrated Control Unit (MICU) Internal Error (CPU Error); Multiplex Integrated Control Unit (MICU) Internal Error (EEPROM Error) DTC B1102 Door Multiplex Control Unit Internal Error DTC B1005 MICU Lost Communication with Relay Control Module DTC B1006 MICU Lost Communication with Door Multiplex Control Unit (Door Lock Switch Message) DTC B1007 MICU Lost Communication with Combination Switch Control Unit (Headlight Switch Message) DTC B1008 MICU Lost Communication with Gauge Control Module (A/T Message) DTC B1010 MICU Lost Communication with Door Multiplex Control Unit (Panic Message) DTC B1011 MICU Lost Communication with Gauge Control Module (VSP/NE Message) DTC B1032 MICU Lost Communication with the Gauge Control Module (CDS Message) DTC B1080 Power Supply Circuit (IG1 Line) Input Error for Relay Control Module and MICU DTC B1255 Combination Switch Control Unit Lost Communication With MICU
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.