AI DamageOBD2 trouble codes in owner complaints: airbags, ABS, CAN network
Codes owners name directly in complaints filed in the official US data: 89 codes, 1,514 complaints. We start with what matters most for a car after a crash: airbags, ABS and stability control, steering, cameras and radars, and the CAN network. For each code: what it means, which models and years report it, and which components it involves.
Airbags and seat belts (SRS)
Restraint system codes: airbag squibs, belt pretensioners, crash sensors and occupant classification. After a crash with airbag deployment, many makers require the restraint module to be replaced or reset by procedure because it stores crash data. An airbag light on an auction car is not cosmetic: airbags, the module and sensors can cost more than the body repair.
- B0081 First Row Center Seat Belt Load Limiter Deployment Control 62 complaints
- B0020 Left Side Airbag Deployment Control 58 complaints
- B00A0 Occupant Classification System 36 complaints
- U0151 Lost Communication With Restraints Control Module 20 complaints
- B0074 Second Row Center Seat Belt Pretensioner Deployment Control 17 complaints
- U0170 Lost Communication With Restraints System Sensor A 17 complaints
- B0001 Driver Frontal Stage 1 Deployment Control 16 complaints
- B0022 Left Curtain Deployment Control 2 14 complaints
- B0028 Right Side Airbag Deployment Control 12 complaints
- B0092 Left Side Restraints Sensor 2 12 complaints
- B0021 Left Curtain Deployment Control 1 8 complaints
- B0012 Passenger Frontal Stage 3 Deployment Control 7 complaints
- B0052 Passenger Seat Belt Sensor 7 complaints
- B0085 Second Row Right Seat Belt Load Limiter Deployment Control 7 complaints
- U0452 Invalid Data Received From Restraints Control Module 6 complaints
- B0040 Third Row Left Side Airbag Deployment Control 5 complaints
- B0041 Third Row Left Frontal Stage 1 Deployment Control 5 complaints
- B00D5 Restraint System Passenger Disable Indicator 5 complaints
- B0002 Driver Frontal Stage 2 Deployment Control 4 complaints
- B0013 Passenger Knee Bolster Deployment Control 4 complaints
- B00C0 Passenger Seat Occupant Classification Sensor A 4 complaints
- B0019 Center Frontal Stage 2 Deployment Control 3 complaints
- B0043 Third Row Left Frontal Stage 3 Deployment Control 3 complaints
- B0050 Driver Seat Belt Sensor 3 complaints
- B0058 Third Row Right Seat Belt Sensor 3 complaints
- U0154 Lost Communication With Restraints Occupant Classification System Module 3 complaints
ABS, stability control and brakes
ABS/ESC codes: wheel speed sensors, the ABS hydraulic unit and pump, brake booster, pressure and yaw sensors. A hit to a wheel or suspension often damages the wheel speed sensor or its wiring, so on a damaged car this code is a reason to inspect the hub, knuckle and control arms, not just swap the sensor.
- C0020 ABS Pump Motor Control 302 complaints
- U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module A 41 complaints
- U0415 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module 41 complaints
- U0416 Invalid Data Received From Vehicle Dynamics Control Module 28 complaints
- U0418 Invalid Data Received From Brake System Control Module A 24 complaints
- C0561 Vacuum Sensor A/B Correlation 14 complaints
- C0021 Brake Booster Performance 13 complaints
- C0063 Yaw Rate Sensor 12 complaints
- C0040 Brake Pedal Switch A 11 complaints
- C006C Stability System 10 complaints
- C0035 Right Front Wheel Speed Sensor Supply 7 complaints
- U0122 Lost Communication With Vehicle Dynamics Control Module 7 complaints
- U0129 Lost Communication With Brake System Control Module A 7 complaints
- C0037 Left Rear Wheel Speed Sensor 6 complaints
- C003A Right Rear Wheel Speed Sensor 6 complaints
- C0031 Left Front Wheel Speed Sensor 4 complaints
- C0045 Brake Pressure Sensor B 4 complaints
- C05B0 Brake Hydraulic Circuit C Leak 4 complaints
- U0137 Lost Communication With Trailer Brake Control Module 4 complaints
- C0022 Brake Booster Solenoid 3 complaints
- C0034 Right Front Wheel Speed Sensor 3 complaints
- C052E ABS Pump Motor Control Circuit Low 3 complaints
- C053D Brake Pressure Sensor A Range/Performance 3 complaints
- C055F BSCM/EBBC Hydraulic Unit Performance 3 complaints
- C056E Brake Pedal Position Sensor Supply Voltage Circuit High 3 complaints
- C0580 Brake Booster Motor A Phase U-V-W Circuit Low 3 complaints
- C060B Left Park Brake Actuator Control Circuit/Open 3 complaints
Steering and power steering
Electric power steering, steering angle sensor and steering column codes. After a front wheel impact the steering angle sensor often needs calibration, and a bent rack or tie rod produces errors scanners describe as invalid data.
- U0131 Lost Communication With Power Steering Control Module A 32 complaints
- U0420 Invalid Data Received From Power Steering Control Module A 29 complaints
- C0051 Steering Wheel Position Sensor 13 complaints
- U0428 Invalid Data Received From Steering Angle Sensor Module 8 complaints
- U0212 Lost Communication With Steering Column Control Module 6 complaints
- U0126 Lost Communication With Steering Angle Sensor Module 5 complaints
Cameras, radars and driver assistance (ADAS)
Codes for cameras, radars, blind spot and parking sensors. These units sit in bumpers, grilles and mirrors, so even a light impact shifts them or breaks mounts. After bumper or windshield work they need calibration on a rig, which is a separate and noticeable cost.
- U0104 Lost Communication With Cruise Control Module 6 complaints
- U0159 Lost Communication With Parking Assist Control Module A 4 complaints
- U026A Lost Communication With Image Processing Sensor F 4 complaints
- U0232 Lost Communication With Side Obstacle Detection Control Module A 3 complaints
- U0233 Lost Communication With Side Obstacle Detection Control Module B 3 complaints
- U023A Lost Communication With Image Processing Module A 3 complaints
CAN network and module communication
Lost communication codes (U0xxx) mean one module cannot hear another on the data bus. The cause can be the module itself, its power or ground, or a damaged wiring harness. After a crash this is a typical trace: the impact tears wiring in the rail, fender or rocker and modules drop off the network.
- U3000 Control Module 241 complaints
- U0073 Control Module Communication Bus A Off 35 complaints
- U0140 Lost Communication With Body Control Module 35 complaints
- U3003 Battery Voltage 26 complaints
- U0001 High Speed CAN Communication Bus 20 complaints
- U0422 Invalid Data Received From Body Control Module 16 complaints
- U0002 High Speed CAN Communication Bus Performance 11 complaints
- U0146 Lost Communication With Serial Data Gateway Module A 11 complaints
- U0141 Lost Communication With Body Control Module A 8 complaints
- U3006 Control Module Input Power A Circuit/Open 6 complaints
- U0010 Medium Speed CAN Communication Bus 4 complaints
- U0029 Vehicle Communication Bus A Performance 4 complaints
- U3001 Control Module Improper Shutdown Performance 3 complaints
- U3018 Control Module Input Power Circuit A/B Correlation 3 complaints
Body electronics
Codes for body, door, climate, instrument cluster and infotainment modules. On a damaged car they often point to wiring or a connector damaged in the impact zone, or to water inside.
- U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module 25 complaints
- U0164 Lost Communication With HVAC Control Module 9 complaints
- U0423 Invalid Data Received From Instrument Panel Cluster Control Module 6 complaints
- U0184 Lost Communication With Radio 5 complaints
- U0199 Lost Communication With Door Control Module A 4 complaints
- U0253 Lost Communication With Accessory Protocol Interface Module 4 complaints
- B0113 Camera Washer Actuator K 3 complaints
- U0198 Lost Communication With Telematic Control Module 3 complaints
- U0200 Lost Communication With Door Control Module B 3 complaints
- U0256 Lost Communication With Front Controls Interface Module A 3 complaints
Other codes from complaints
There is little data for this code or its meaning is ambiguous, so this page is not indexed.
- C1391391
- C1185166
- C2200151
- U010088
- C14A787
- B144884
- B101882
- U010174
- C125671
- U040171
- B227870
- C054565
- C117945
- C125244
- C125336
- C121034
- U040234
- C121433
- C124633
- C125033
- B011132
- C119432
- C119832
- C124731
- B134230
- C124229
- C125429
- C221729
- B170628
- C122328
- U100027
- B165026
- C124126
- B1B0224
- B141B23
- B180123
- C200D23
- B176022
- C127722
- C196321
- C120319
- B001418
- B138218
- B141C17
- B273C17
- B134616
- B176416
- C121C16
- C1B0016
- U040416
- B137815
- U010315
- U029315
- B132514
- B186114
- B296014
- C151314
- B011613
- B131213
- C024213
- C046013
- U041213
- U111013
- U201113
- B12C512
- B148112
- C113012
- U141212
- B101D11
- B170111
- C056D11
- C1A1611
- U112011
- U260311
- B105410
- C063110
- C080010
- C120110
- C123110
- C123510
- C123710
- C148010
- C161E10
- U101110
- U18A210
- U262410
- B11029
- B16209
- C02109
- C10019
- C13109
- U01099
- U01119
- U10289
- U20239
- U26229
- B00268
- B10498
- B13188
- B14908
- B1B068
- C01968
- C07108
- C102D8
- C12348
- C12608
- C12908
- C14788
- C16048
- C250C8
- U10108
- U12628
- U14118
- U21008
- U21058
- U26068
- U26198
- U26238
- B11347
- B15137
Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.