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.
2009 Acura RLFACTORY OEM SERVICE PROCEDURE
Multiplex Integrated Control DTCS
MULTIPLEX INTEGRATED CONTROL DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| B1000 | Communication bus line error (BUS-OFF) |
| B1001 | MICU internal (CPU) error |
| B1002 | MICU internal (EEPROM) error |
| B1005 | MICU lost communication with relay control module (RM message) |
| B1007 | MICU lost communication with combination switch control unit (HLSW message) |
| B1008 | MICU lost communication with gauge control module (A/T message) |
| B1011 | MICU lost communication with gauge control module (VSP/NE message) |
| B1013 | MICU lost communication with driver's MPCS unit (ASLOCKSW message) |
| B1014 | MICU lost communication with driver's MPCS unit (DOORSW message) |
| B1015 | MICU lost communication with driver's MPCS unit (DRLOCKSW message) |
| B1016 | MICU lost communication with keyless access control unit (PANIC message) |
| B1032 | MICU collision detection system (CDS) input error |
| B1575 | Automatic lighting sensor circuit malfunction |
Factory Service Tools
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.