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 MDXFACTORY OEM SERVICE PROCEDURE
Power Windows DTCS
POWER WINDOWS DIAGNOSTIC TROUBLE CODE (DTC) INDENTIFICATION
| DTC | Description |
|---|---|
| DTC B2175 | Driver's Power Window Motor Pulse A Error |
| DTC B2176 | Driver's Power Window Motor Pulse B Error |
| DTC B2177 | Front Passenger's Power Window Motor Pulse A Error |
| DTC B2178 | Front Passenger's Power Window Motor Pulse B Error |
| DTC B2187 | UART Communication Error 1 (Driver's MPCS Unit from DR Door ECU) |
| DTC B2188 | UART Communication Error 2 (Driver's MPCS Unit from other node) |
| DTC B2189 | Driver's Window Position Data Error |
| DTC B2190 | Assistant's Window Position Data Error |
| DTC B2191 | Front Passenger's MPCS Unit Internal Error (EEPROM error) |
Factory Service Tools
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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.