2007 Acura RLFACTORY OEM SERVICE PROCEDURE

Power Windows DTCS

POWER WINDOWS DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
DTC B1132 Left Rear Power Window Motor Pulse A Error
DTC B1133 Left Rear Power Window Motor Pulse B Error
DTC B1134 Right Rear Power Window Motor Pulse A Error
DTC B1135 Right Rear Power Window Motor Pulse B Error
DTC B1136; B1148 Right Rear Power Window Switch Internal Error; Left Rear Power Window Switch Internal Error
DTC B1147; B1149 Left Rear Power Window Position Detect Circuit Error; Right Rear Power Window Position Detect Circuit Error
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 Communication Line (UART Line) Circuit Short
DTC B2188 Communication Line (UART Line) Circuit Open
DTC B2189 Driver's Power Window Position Detect Circuit Error
DTC B2190 Front Passenger's Power Window Position Detect Circuit Error
DTC B2191 Front Passenger's MPCS Unit Internal (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.