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 MANUALSACURA2015RDX AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXMULTIPLEX INTEGRATED CONTROL UNIT DOOR DTCS
2015 Acura RDX AWD
Multiplex Integrated Control Unit Door DTCS
2015 Acura RDX AWDSECTION Multiplex Integrated Control Unit Door DTCS
MULTIPLEX INTEGRATED CONTROL UNIT DOOR DIAGNOSTIC TROUBLE CODE (DTC) INDENTIFICATION
| DTC | Description |
|---|---|
| B1125 | Driver's Power Window Motor A Pulse Malfunction (2013-18) |
| B1126 | Driver's Power Window Motor B Pulse Malfunction (2013-18) |
| B1127 | Driver's Door Lock Key Cylinder Switch Malfunction (2013-18) |
| B1128 | Driver's Door Lock Switch Malfunction (2013-18) |
| B1129 | Driver's Door Lock Knob Switch Malfunction (2013-18) |
| B1130 | Front Passenger's Power Window Motor A-Phase Pulse Signal Input Error (2013-18) |
| B1131 | Front Passenger's Power Window Motor B-Phase Pulse Signal Input Error (2013-18) |
| B1140 | Driver's Power Window Position Detect Circuit Malfunction (2013-18) |
| B1142 | Power Window Master Switch Lost Communication With the Other Units (UART Communication Error) (2013-18) |
| B1145 | Front Passenger's Window Position Detect Circuit Malfunction (2013-18) |
| U0164 | Door Multiplex Control Unit Lost Communication With Climate Control Unit (2013-18) |
| U1280 | Communication Bus Line Error (BUS-OFF) (2013-18) |
| U1281 | Door Multiplex Control Unit Lost Communication With MICU (2013-18) |
| U128D | Door Multiplex Control Unit Lost Communication With Gauge Control Module (2013-15) |
| U128D | Door Multiplex Control Unit Lost Communication With Gauge Control Module (2016-18) |
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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.