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.
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HOMESERVICE MANUALSHONDA2009ACCORD EX, 4D SEDAN, 3.5 CP3REPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEX (V6)MULTIPLEX INTEGRATED CONTROL DTCS
2009 Honda Accord EX, 4D Sedan, 3.5 CP3
Multiplex Integrated Control DTCS
2009 Honda Accord EX, 4D Sedan, 3.5 CP3SECTION Multiplex Integrated Control DTCS
MULTIPLEX INTEGRATED CONTROL DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B10A2 | Driver's MICU (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 |
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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.