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 DIAGNOSISGENERAL INFORMATIONDTC INDEXKEYLESS ACCESS POWER CONTROL UNIT DTCS
2015 Acura RDX AWD
Keyless Access Power Control Unit DTCS
2015 Acura RDX AWDSECTION Keyless Access Power Control Unit DTCS
KEYLESS ACCESS POWER CONTROL UNIT DIAGNOSTIC TROUBLE CODE (DTC) INDENTIFICATION
| DTC | Description |
|---|---|
| B12A1 | Power Control Unit Internal (CPU) Error (2013-18) |
| B12C5 | Engine Start/Stop Switch Failure (2013-15) |
| B12C5 | Engine Start/Stop Switch Failure (2016-18) |
| B12C6 | Electric Steering Lock Switch C/D Monitor Circuit Failure (2013-18) |
| B12C7 | Electric Steering Lock Motor Circuit Failure (2013-18) |
| B12D0 | Power Control Unit IG1A Circuit Error (2013-15) |
| B12D0 | Power Control Unit IG1A Circuit Error (2016-18) |
| B12D1 | Power Control Unit IG1B Circuit Error (2013-15) |
| B12D1 | Power Control Unit IG1B Circuit Error (2016-18) |
| B12D2 | Power Control Unit IG2 Circuit Error (2013-15) |
| B12D2 | Power Control Unit IG2 Circuit Error (2016-18) |
| B12D3 | Power Control Unit IG Latch Circuit Error (2013-15) |
| B12D3 | Power Control Unit IG Latch Circuit Error (2016-18) |
| B12E0 | Electric Steering Lock Switch Internal Error (2013-18) |
| B12E1 | Electric Steering Lock Motor Internal Error (2013-18) |
| B12E2 | Electric Steering Lock Low Level Failure of MTRCUT1 (2013-18) |
| B12E3 | Electric Steering Lock High Level Failure of MTRCUT1 (2013-18) |
| B12E4 | Electric Steering Lock High Level Failure of MTRCUT2 (2013-18) |
| B12E5 | Incorrect Assembly of Control Unit for Electric Steering Lock Equipped Vehicle (2016-18) |
| B12F0 | Power Control Unit Lost Communication With Electric Steering Lock (2013-18) |
| B12F1 | Power Control Unit Lost Communication With Backup Control Unit (2013-18) |
| B12F2 | Communication Fail Between Keyless Access Control Unit and PCU (2013-18) |
| U0073 | F-CAN Communication Bus Line Error (2013-15) |
| U0073 | F-CAN Communication Bus Line Error (2016-18) |
| U0100 | Power Control Unit Lost Communication With PCM (2013-15) |
| U0100 | Power Control Unit Lost Communication (2016-18) |
| U0122 | Power Control Unit Lost Communication With VSA Modulator-Control Unit (VSA Message) (2013-15) |
| U1280 | Power Control Unit Communication Bus Line Error (BUS-OFF) (2013-15) |
| U1280 | Power Control Unit Communication Bus Line Error (BUS-OFF) (2016-18) |
| U1281 | Power Control Unit Lost Communication With MICU (2013-15) |
| U1281 | Power Control Unit Lost Communication With MICU (2016-18) |
| U128D | Power Control Unit Lost Communication With Gauge Control Module (2013-15) |
| U128D | Power 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.