Generic OBD-II Diagnostic U - Network Codes
This list contains standard diagnostic trouble codes (DTC’s) that are used by some manufacturers to identify vehicle problems. The codes provide below are generic codes that may not apply to all vehicles. Vehicle manufacturers may use manufacturer specific DTC codes that are different from the codes shown below.
The list below is for information purposes only.
See also: Generic OBD-II P Powertrain Codes & Generic OBD-II B Body Codes
Code |
Description |
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 |