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.
Adaptive Cruise Control (ACC) DTC Troubleshooting Index
2015 Acura RLXSECTION DTC Troubleshooting
| DTC | Detection Item |
|---|---|
| B0050-F0 | Driver's Seat Belt Switch Malfunction |
| B2A00-52 | ACC/FCW Initial Check Incomplete |
| B2A10-14 | Brake Light Relay Circuit Malfunction |
| C0031-62 | Left Front Wheel Speed Sensor Signal Error |
| C0034-62 | Right Front Wheel Speed Sensor Signal Error |
| C0037-62 | Left Rear Wheel Speed Sensor Signal Error |
| C003A-62 | Right Rear Wheel Speed Sensor Signal Error |
| C0041-14 | Brake Switch Signal Error |
| C0044-1C | Master Cylinder Brake Fluid Pressure Sensor Circuit Open/Short |
| C0044-28 | Master Cylinder Brake Fluid Pressure Sensor Center Position Error |
| C0062-F0 | Longitudinal Acceleration Sensor (Sub fault) Fault Detection by Source Module |
| C0063-27 | Yaw Rate Sensor Gain Error |
| C0063-28 | Yaw Rate Sensor Center Position Revision Value Error |
| C0063-62 | Yaw Rate Sensor Stabilizing Malfunction |
| C0063-96 | Yaw Rate Sensor Diagnose Malfunction |
| P0564-F0 | ACC Switch Signal Error |
| P0720-62 | Vehicle Speed Signal Error |
| P2583-4A | Millimeter Wave Radar Function Error |
| P2583-54 | Millimeter Wave Radar Aiming Incomplete |
| P2583-64 | Millimeter Wave Radar Aiming Error |
| P2583-87 | Millimeter Wave Radar Communication Error |
| P2583-96 | Millimeter Wave Radar Sensor Error |
| U0029-00 | Communication Line Error |
| U0047-00 | F-CAN B Communication Error |
| U0100-00 | Lost Communication With the PCM (PGM-FI System) |
| U0101-00 | Lost Communication With the PCM (A/T System) |
| U0122-00 | Lost Communication With the VSA Modulator-Control Unit |
| U0123-00 | Yaw Rate Sensor Error |
| U0128-00 | Lost Communication With Park Brake Control Module |
| U0151-00 | Lost Communication With Restraints Control Module |
| U0155-00 | Lost Communication With the Gauge Control Module |
| U0401-68 | Engine Control System (Including PCM) Malfunction |
| U0402-68 | A/T Control System (Including PCM) Malfunction |
| U0416-68 | VSA Brake Actuator Malfunction |
| U0417-68 | Invalid Data From Electric Parking Brake Control Module Event Information |
| U129D-00 | Lost Communication With the Precision All Wheel Steer |
| U1482-68 | Precision All Wheel Steer Malfunction |
| U3000-51 | Adaptive Cruise Control (ACC) Unit Update Incomplete |
RENDER: 1.0x
NO RELATED
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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.