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.
2012 Acura RLFACTORY OEM SERVICE PROCEDURE
Multiplex Integrated Control DTCS
MULTIPLEX INTEGRATED CONTROL DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1000 | Communication Circuit Error (BUS-OFF) |
| DTC B1001 | MICU Internal Error (CPU Error) |
| DTC B1002 | MICU Internal Error (EEPROM Error) |
| DTC B1005 | MICU Lost Communication With Relay Control Module |
| 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 B1011 | MICU Lost Communication With Gauge Control Module (VSP/NE Message) |
| DTC B1013 | MICU Lost Communication With Driver's MPCS Unit (ASLOCKSW Message) |
| DTC B1014 | MICU Lost Communication With Driver's MPCS Unit (Door Switch Message) |
| DTC B1015 | MICU Lost Communication With Driver's MPCS Unit (Door Lock Switch Message) |
| DTC B1016 | MICU Lost Communication With Keyless Access Unit (Panic Message) |
| DTC B1032 | MICU Lost Communication With SRS Unit (CDS Message) |
| DTC B1050 | Communication Circuit Error (BUS-OFF) |
| DTC B1150 | Communication Circuit Error (BUS-OFF) |
| DTC B1200 | Communication Bus Line (BUS-OFF) |
| DTC B1250 | Communication Circuit Error (BUS-OFF) |
| DTC B1600 | Keyless Access ECU Bus Line Error (BUS-OFF) |
| DTC B1750 | Communication Circuit Error (BUS-OFF) |
| DTC B1800 | Communication Circuit Error (BUS-OFF) |
| DTC B2100 | Communication Circuit Error (BUS-OFF) |
| DTC B2150 | Communication Circuit Error (BUS-OFF) |
| DTC B2200 | Communication Circuit Error (BUS-OFF) |
| DTC B1080 | Power Supply Circuit (IG1 Line) Input Error for Relay Control Module and MICU |
| DTC B2152 | Driver's MPCS Unit Internal Error (EEPROM Error) |
| DTC B2155 | Driver's MPCS Unit Lost Communication With MICU |
| DTC B2156 | Driver's MPCS Unit Lost Communication With MICU (Mirror Switch Message) |
| DTC B2157 | Driver's MPCS Unit Lost Communication With Gauge Control Module (Illumination Message) |
| DTC B2160 | Driver's MPCS Unit Lost Communication With Gauge Control Module (VSP/NE Message) |
| DTC B2159 | Driver's MPCS Unit Lost Communication With Keyless Access Control Unit (Keyless Access Lock Message) |
Factory Service Tools
Use the Manual With the Right Hardware
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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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