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
- Component Location Index
- System Description
- Resetting the Power Window Control Unit
- Circuit Diagram
- DTC Troubleshooting
- 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)
- Driver's MPCS Unit Input Test
- Front Passenger's MPCS Unit Input Test
- Driver's Power Window Motor Test
- Front Passenger's Power Window Motor Test
- Rear Power Window Motor Test
- Front Passenger's Power Window Switch Test
- Rear Power Window Switch Test/Replacement
- Power Window Master Switch Replacement
- Front Passenger's Power Window Switch Replacement
Factory Service Tools
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.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.