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U - OBD-II Network Codes

 

Check out the following pages for more Diagnostic Trouble Codes:

 

OBD-II P Powertrain Codes

 

OBD-II B Body Codes

Network Codes

 

  • 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"