Those are the generic fault codes in a OBD-II compliant vehicle that all manufacturers have to adhere to.
If you encounter an OBD-II code that is not here, then it's most probably an manufacturer specific code.
| Code | Description |
|---|---|
| U0001 | High Speed CAN Communication Bus |
| U0002 | High Speed CAN Communication Bus Performance |
| U0003 | High Speed CAN Communication Bus (+) Open |
| U0004 | High Speed CAN Communication Bus (+) Low |
| U0005 | High Speed CAN Communication Bus (+) High |
| U0006 | High Speed CAN Communication Bus (-) Open |
| U0007 | High Speed CAN Communication Bus (-) Low |
| U0008 | High Speed CAN Communication Bus (-) High |
| U0009 | High Speed CAN Communication Bus (-) shorted to Bus (+) |
| U0010 | Medium Speed CAN Communication Bus |
| U0011 | Medium Speed CAN Communication Bus Performance |
| U0012 | Medium Speed CAN Communication Bus (+) Open |
| U0013 | Medium Speed CAN Communication Bus (+) Low |
| U0014 | Medium Speed CAN Communication Bus (+) High |
| U0015 | Medium Speed CAN Communication Bus (-) Open |
| U0016 | Medium Speed CAN Communication Bus (-) Low |
| U0017 | Medium Speed CAN Communication Bus (-) High |
| U0018 | Medium Speed CAN Communication Bus (-) shorted to Bus (+) |
| U0019 | Low Speed CAN Communication Bus |
| U0020 | Low Speed CAN Communication Bus Performance |
| U0021 | Low Speed CAN Communication Bus (+) Open |
| U0022 | Low Speed CAN Communication Bus (+) Low |
| U0023 | Low Speed CAN Communication Bus (+) High |
| U0024 | Low Speed CAN Communication Bus (-) Open |
| U0025 | Low Speed CAN Communication Bus (-) Low |
| U0026 | Low Speed CAN Communication Bus (-) High |
| U0027 | Low Speed CAN Communication Bus (-) shorted to Bus (+) |
| U0028 | Vehicle Communication Bus A |
| U0029 | Vehicle Communication Bus A Performance |
| U0030 | Vehicle Communication Bus A (+) Open |
| U0031 | Vehicle Communication Bus A (+) Low |
| U0032 | Vehicle Communication Bus A (+) High |
| U0033 | Vehicle Communication Bus A (-) Open |
| U0034 | Vehicle Communication Bus A (-) Low |
| U0035 | Vehicle Communication Bus A (-) High |
| U0036 | Vehicle Communication Bus A (-) shorted to Bus A (+) |
| U0037 | Vehicle Communication Bus B |
| U0038 | Vehicle Communication Bus B Performance |
| U0039 | Vehicle Communication Bus B (+) Open |
| U0040 | Vehicle Communication Bus B (+) Low |
| U0041 | Vehicle Communication Bus B (+) High |
| U0042 | Vehicle Communication Bus B (-) Open |
| U0043 | Vehicle Communication Bus B (-) Low |
| U0044 | Vehicle Communication Bus B (-) High |
| U0045 | Vehicle Communication Bus B (-) shorted to Bus B (+) |
| U0046 | Vehicle Communication Bus C |
| U0047 | Vehicle Communication Bus C Performance |
| U0048 | Vehicle Communication Bus C (+) Open |
| U0049 | Vehicle Communication Bus C (+) Low |
| U0050 | Vehicle Communication Bus C (+) High |
| U0051 | Vehicle Communication Bus C (-) Open |
| U0052 | Vehicle Communication Bus C (-) Low |
| U0053 | Vehicle Communication Bus C (-) High |
| U0054 | Vehicle Communication Bus C (-) shorted to Bus C (+) |
| U0055 | Vehicle Communication Bus D |
| U0056 | Vehicle Communication Bus D Performance |
| U0057 | Vehicle Communication Bus D (+) Open |
| U0058 | Vehicle Communication Bus D (+) Low |
| U0059 | Vehicle Communication Bus D (+) High |
| U0060 | Vehicle Communication Bus D (-) Open |
| U0061 | Vehicle Communication Bus D (-) Low |
| U0062 | Vehicle Communication Bus D (-) High |
| U0063 | Vehicle Communication Bus D (-) shorted to Bus D (+) |
| U0064 | Vehicle Communication Bus E |
| U0065 | Vehicle Communication Bus E Performance |
| U0066 | Vehicle Communication Bus E (+) Open |
| U0067 | Vehicle Communication Bus E (+) Low |
| U0068 | Vehicle Communication Bus E (+) High |
| U0069 | Vehicle Communication Bus E (-) Open |
| U0070 | Vehicle Communication Bus E (-) Low |
| U0071 | Vehicle Communication Bus E (-) High |
| U0072 | Vehicle Communication Bus E (-) shorted to Bus E (+) |
| U0073 | Control Module Communication Bus Off |
| U0074 | Reserved by Document |
| U0075 | Reserved by Document |
| U0076 | Reserved by Document |
| U0077 | Reserved by Document |
| U0078 | Reserved by Document |
| U0079 | Reserved by Document |
| U0080 | Reserved by Document |
| U0081 | Reserved by Document |
| U0082 | Reserved by Document |
| U0083 | Reserved by Document |
| U0084 | Reserved by Document |
| U0085 | Reserved by Document |
| U0086 | Reserved by Document |
| U0087 | Reserved by Document |
| U0088 | Reserved by Document |
| U0089 | Reserved by Document |
| U0090 | Reserved by Document |
| U0091 | Reserved by Document |
| U0092 | Reserved by Document |
| U0093 | Reserved by Document |
| U0094 | Reserved by Document |
| U0095 | Reserved by Document |
| U0096 | Reserved by Document |
| U0097 | Reserved by Document |
| U0098 | Reserved by Document |
| U0099 | Reserved by Document |
| U0100 | Lost Communication With ECM/PCM "A" |
| U0101 | Lost Communication with TCM |
| U0102 | Lost Communication with Transfer Case Control Module |
| U0103 | Lost Communication With Gear Shift Module |
| U0104 | Lost Communication With Cruise Control Module |
| U0105 | Lost Communication With Fuel Injector Control Module |
| U0106 | Lost Communication With Glow Plug Control Module |
| U0107 | Lost Communication With Throttle Actuator Control Module |
| U0108 | Lost Communication With Alternative Fuel Control Module |
| U0109 | Lost Communication With Fuel Pump Control Module |
| U0110 | Lost Communication With Drive Motor Control Module |
| U0111 | Lost Communication With Battery Energy Control Module "A" |
| U0112 | Lost Communication With Battery Energy Control Module "B" |
| U0113 | Lost Communication With Emissions Critical Control Information |
| U0114 | Lost Communication With Four-Wheel Drive Clutch Control Module |
| U0115 | Lost Communication With ECM/PCM "B" |
| U0116 | Reserved by Document |
| U0117 | Reserved by Document |
| U0118 | Reserved by Document |
| U0119 | Reserved by Document |
| U0120 | Reserved by Document |
| U0121 | Lost Communication With Anti-Lock Brake System (ABS) Control Module |
| U0122 | Lost Communication With Vehicle Dynamics Control Module |
| U0123 | Lost Communication With Yaw Rate Sensor Module |
| U0124 | Lost Communication With Lateral Acceleration Sensor Module |
| U0125 | Lost Communication With Multi-axis Acceleration Sensor Module |
| U0126 | Lost Communication With Steering Angle Sensor Module |
| U0127 | Lost Communication With Tire Pressure Monitor Module |
| U0128 | Lost Communication With Park Brake Control Module |
| U0129 | Lost Communication With Brake System Control Module |
| U0130 | Lost Communication With Steering Effort Control Module |
| U0131 | Lost Communication With Power Steering Control Module |
| U0132 | Lost Communication With Ride Level Control Module |
| U0133 | Reserved by Document |
| U0134 | Reserved by Document |
| U0135 | Reserved by Document |
| U0136 | Reserved by Document |
| U0137 | Reserved by Document |
| U0138 | Reserved by Document |
| U0139 | Reserved by Document |
| U0140 | Lost Communication With Body Control Module |
| U0141 | Lost Communication With Body Control Module "A" |
| U0142 | Lost Communication With Body Control Module "B" |
| U0143 | Lost Communication With Body Control Module "C" |
| U0144 | Lost Communication With Body Control Module "D" |
| U0145 | Lost Communication With Body Control Module "E" |
| U0146 | Lost Communication With Gateway "A" |
| U0147 | Lost Communication With Gateway "B" |
| U0148 | Lost Communication With Gateway "C" |
| U0149 | Lost Communication With Gateway "D" |
| U0150 | Lost Communication With Gateway "E" |
| U0151 | Lost Communication With Restraints Control Module |
| U0152 | Lost Communication With Side Restraints Control Module |
| U0153 | Lost Communication With Side Restraints Control Module |
| U0154 | Lost Communication With Restraints Occupant Sensing Control Module |
| U0155 | Lost Communication With Instrument Panel Cluster (IPC) Control Module |
| U0156 | Lost Communication With Information Center "A" |
| U0157 | Lost Communication With Information Center "B" |
| U0158 | Lost Communication With Head Up Display |
| U0159 | Lost Communication With Parking Assist Control Module |
| U0160 | Lost Communication With Audible Alert Control Module |
| U0161 | Lost Communication With Compass Module |
| U0162 | Lost Communication With Navigation Display Module |
| U0163 | Lost Communication With Navigation Control Module |
| U0164 | Lost Communication With HVAC Control Module |
| U0165 | Lost Communication With HVAC Control Module |
| U0166 | Lost Communication With Auxiliary Heater Control Module |
| U0167 | Lost Communication With Vehicle Immobilizer Control Module |
| U0168 | Lost Communication With Vehicle Security Control Module |
| U0169 | Lost Communication With Sunroof Control Module |
| U0170 | Lost Communication With "Restraints System Sensor A" |
| U0171 | Lost Communication With "Restraints System Sensor B" |
| U0172 | Lost Communication With "Restraints System Sensor C" |
| U0173 | Lost Communication With "Restraints System Sensor D" |
| U0174 | Lost Communication With "Restraints System Sensor E" |
| U0175 | Lost Communication With "Restraints System Sensor F" |
| U0176 | Lost Communication With "Restraints System Sensor G" |
| U0177 | Lost Communication With "Restraints System Sensor H" |
| U0178 | Lost Communication With "Restraints System Sensor I" |
| U0179 | Lost Communication With "Restraints System Sensor J" |
| U0180 | Lost Communication With Automatic Lighting Control Module |
| U0181 | Lost Communication With Headlamp Leveling Control Module |
| U0182 | Lost Communication With Lighting Control Module |
| U0183 | Lost Communication With Lighting Control Module |
| U0184 | Lost Communication With Radio |
| U0185 | Lost Communication With Antenna Control Module |
| U0186 | Lost Communication With Audio Amplifier |
| U0187 | Lost Communication With Digital Disc Player/Changer Module "A" |
| U0188 | Lost Communication With Digital Disc Player/Changer Module "B" |
| U0189 | Lost Communication With Digital Disc Player/Changer Module "C" |
| U0190 | Lost Communication With Digital Disc Player/Changer Module "D" |
| U0191 | Lost Communication With Television |
| U0192 | Lost Communication With Personal Computer |
| U0193 | Lost Communication With "Digital Audio Control Module A" |
| U0194 | Lost Communication With "Digital Audio Control Module B" |
| U0195 | Lost Communication With Subscription Entertainment Receiver Module |
| U0196 | Lost Communication With Rear Seat Entertainment Control Module |
| U0197 | Lost Communication With Telephone Control Module |
| U0198 | Lost Communication With Telematic Control Module |
| U0199 | Lost Communication With "Door Control Module A" |
| U0200 | Lost Communication With "Door Control Module B" |
| U0201 | Lost Communication With "Door Control Module C" |
| U0202 | Lost Communication With "Door Control Module D" |
| U0203 | Lost Communication With "Door Control Module E" |
| U0204 | Lost Communication With "Door Control Module F" |
| U0205 | Lost Communication With "Door Control Module G" |
| U0206 | Lost Communication With Folding Top Control Module |
| U0207 | Lost Communication With Movable Roof Control Module |
| U0208 | Lost Communication With "Seat Control Module A" |
| U0209 | Lost Communication With "Seat Control Module B" |
| U0210 | Lost Communication With "Seat Control Module C" |
| U0211 | Lost Communication With "Seat Control Module D" |
| U0212 | Lost Communication With Steering Column Control Module |
| U0213 | Lost Communication With Mirror Control Module |
| U0214 | Lost Communication With Remote Function Actuation |
| U0215 | Lost Communication With "Door Switch A" |
| U0216 | Lost Communication With "Door Switch B" |
| U0217 | Lost Communication With "Door Switch C" |
| U0218 | Lost Communication With "Door Switch D" |
| U0219 | Lost Communication With "Door Switch E" |
| U0220 | Lost Communication With "Door Switch F" |
| U0221 | Lost Communication With "Door Switch G" |
| U0222 | Lost Communication With "Door Window Motor A" |
| U0223 | Lost Communication With "Door Window Motor B" |
| U0224 | Lost Communication With "Door Window Motor C" |
| U0225 | Lost Communication With "Door Window Motor D" |
| U0226 | Lost Communication With "Door Window Motor E" |
| U0227 | Lost Communication With "Door Window Motor F" |
| U0228 | Lost Communication With "Door Window Motor G" |
| U0229 | Lost Communication With Heated Steering Wheel Module |
| U0230 | Lost Communication With Rear Gate Module |
| U0231 | Lost Communication With Rain Sensing Module |
| U0232 | Lost Communication With Side Obstacle Detection Control Module |
| U0233 | Lost Communication With Side Obstacle Detection Control Module |
| U0234 | Lost Communication With Convenience Recall Module |
| U0235 | Lost Communication With Cruise Control Front Distance Range Sensor |
| U0300 | Internal Control Module Software Incompatibility |
| U0301 | Software Incompatibility with ECM/PCM |
| U0302 | Software Incompatibility with Transmission Control Module |
| U0303 | Software Incompatibility with Transfer Case Control Module |
| U0304 | Software Incompatibility with Gear Shift Control Module |
| U0305 | Software Incompatibility with Cruise Control Module |
| U0306 | Software Incompatibility with Fuel Injector Control Module |
| U0307 | Software Incompatibility with Glow Plug Control Module |
| U0308 | Software Incompatibility with Throttle Actuator Control Module |
| U0309 | Software Incompatibility with Alternative Fuel Control Module |
| U0310 | Software Incompatibility with Fuel Pump Control Module |
| U0311 | Software Incompatibility with Drive Motor Control Module |
| U0312 | Software Incompatibility with Battery Energy Control Module A |
| U0313 | Software Incompatibility with Battery Energy Control Module B |
| U0314 | Software Incompatibility with Four-Wheel Drive Clutch Control Module |
| U0315 | Software Incompatibility with Anti-Lock Brake System Control Module |
| U0316 | Software Incompatibility with Vehicle Dynamics Control Module |
| U0317 | Software Incompatibility with Park Brake Control Module |
| U0318 | Software Incompatibility with Brake System Control Module |
| U0319 | Software Incompatibility with Steering Effort Control Module |
| U0320 | Software Incompatibility with Power Steering Control Module |
| U0321 | Software Incompatibility with Ride Level Control Module |
| U0322 | Software Incompatibility with Body Control Module |
| U0323 | Software Incompatibility with Instrument Panel Control Module |
| U0324 | Software Incompatibility with HVAC Control Module |
| U0325 | Software Incompatibility with Auxiliary Heater Control Module |
| U0326 | Software Incompatibility with Vehicle Immobilizer Control Module |
| U0327 | Software Incompatibility with Vehicle Security Control Module |
| U0328 | Software Incompatibility with Steering Angle Sensor Module |
| U0329 | Software Incompatibility with Steering Column Control Module |
| U0330 | Software Incompatibility with Tire Pressure Monitor Module |
| U0331 | Software Incompatibility with Body Control Module "A" |
| U0400 | Invalid Data Received |
| U0401 | Invalid Data Received From ECM/PCM |
| U0402 | Invalid Data Received From Transmission Control Module |
| U0403 | Invalid Data Received From Transfer Case Control Module |
| U0404 | Invalid Data Received From Gear Shift Control Module |
| U0405 | Invalid Data Received From Cruise Control Module |
| U0406 | Invalid Data Received From Fuel Injector Control Module |
| U0407 | Invalid Data Received From Glow Plug Control Module |
| U0408 | Invalid Data Received From Throttle Actuator Control Module |
| U0409 | Invalid Data Received From Alternative Fuel Control Module |
| U0410 | Invalid Data Received From Fuel Pump Control Module |
| U0411 | Invalid Data Received From Drive Motor Control Module |
| U0412 | Invalid Data Received From Battery Energy Control Module A |
| U0413 | Invalid Data Received From Battery Energy Control Module B |
| U0414 | Invalid Data Received From Four-Wheel Drive Clutch Control Module |
| U0415 | Invalid Data Received From Anti-Lock Brake System Control Module |
| U0416 | Invalid Data Received From Vehicle Dynamics Control Module |
| U0417 | Invalid Data Received From Park Brake Control Module |
| U0418 | Invalid Data Received From Brake System Control Module |
| U0419 | Invalid Data Received From Steering Effort Control Module |
| U0420 | Invalid Data Received From Power Steering Control Module |
| U0421 | Invalid Data Received From Ride Level Control Module |
| U0422 | Invalid Data Received From Body Control Module |
| U0423 | Invalid Data Received From Instrument Panel Control Module |
| U0424 | Invalid Data Received From HVAC Control Module |
| U0425 | Invalid Data Received From Auxiliary Heater Control Module |
| U0426 | Invalid Data Received From Vehicle Immobilizer Control Module |
| U0427 | Invalid Data Received From Vehicle Security Control Module |
| U0428 | Invalid Data Received From Steering Angle Sensor Module |
| U0429 | Invalid Data Received From Steering Column Control Module |
| U0430 | Invalid Data Received From Tire Pressure Monitor Module |
| U0431 | Invalid Data Received From Body Control Module "A" |
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