Diagnostic Trouble Code Index for May 2010
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Diagnostic Trouble Codes (DTC)
| Count | Trouble Code | Sample Definition | Manufacturers |
| 30 | P0300 | Multiple Cylinder Misfire Detected | Buick, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, Hyundai, Infiniti, Isuzu, Jaguar, Kia, Mazda, Nissan, Oldsmobile, Pontiac, Saturn, Toyota, Volkswagen |
| 15 | P0303 | Cylinder 3 Misfire Detected | Audi, Chrysler, Dodge, Honda, Jaguar, Jeep, Kia, Nissan, Subaru, Volkswagen |
| 14 | P0171 | Fuel System Lean (Bank 1) | Chevrolet, Dodge, Ford, Honda, Hyundai, Infiniti, Nissan, Volkswagen |
| 14 | P0301 | Cylinder 1 Misfire Detected | Audi, Dodge, Ford, Honda, Hyundai, Jaguar, Jeep, Kia, Nissan, Subaru, Volkswagen |
| 12 | P0304 | Cylinder 4 Misfire Detected | Ford, Honda, Jaguar, Kia, Lincoln, Pontiac, Subaru, Volkswagen |
| 10 | P0340 | Camshaft Position Sensor Circuit Malfunction | BMW, Chevrolet, Chrysler, Ford, GMC, Mitsubishi, Nissan, Volkswagen |
| 9 | P0305 | Cylinder 5 Misfire Detected | Chevrolet, Dodge, Ford, Honda, Hyundai, Jaguar, Mitsubishi, Volkswagen |
| 8 | P0174 | Fuel System Lean (Bank 2) | Chevrolet, Ford, Jaguar, Jeep |
| 7 | P0302 | Cylinder 2 Misfire Detected | Audi, Isuzu, Jaguar, Subaru, Volkswagen |
| 5 | P0306 | Cylinder 6 Misfire Detected | Dodge, Honda, Jaguar, Volkswagen |
| 4 | P0335 | Crankshaft Position Sensor Circuit Malfunction | Buick, Chevrolet, Kia, Nissan |
| 4 | P0401 | Insufficient EGR Flow Detected | Dodge, Mazda, Mitsubishi, Oldsmobile |
| 4 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Dodge, Ford, Hyundai, Volkswagen |
| 4 | P0507 | Idle Speed High | BMW, Pontiac, Volkswagen |
| 4 | U1000 | Class 2 Communication Malfunction | Chevrolet, GMC, Nissan |
| 3 | P0011 | Intake Camshaft Position System Performance | Kia, Nissan, Volkswagen |
| 3 | P0101 | MAF Sensor Performance | Chevrolet, Volkswagen, Volvo |
| 3 | P0172 | Fuel System Rich (Bank 1) | Chevrolet, Dodge, Volvo |
| 3 | P0299 | Turbocharger Engine Underboost | Chevrolet, Ford, Volvo |
| 3 | P0443 | EVAP Purge Solenoid Control Circuit Malfunction | Chevrolet, Dodge, Ford |
| 3 | P0455 | EVAP System Large Leak Detected | Chevrolet, Volvo |
| 3 | P0456 | EVAP System Very Small Leak Detected | Chrysler, Dodge, Toyota |
| 3 | P0500 | Vehicle Speed Sensor Circuit Malfunction | Ford, Lexus, Subaru |
| 3 | P0700 | Automatic Transmission System Malfunction Detected | Chevrolet, Dodge |
| 3 | P1297 | No Change In MAP Signal From Start To Run Transition | Chrysler, Volkswagen |
| 3 | P1300 | Igniter 1 Circuit Malfunction | Audi, Toyota |
| 3 | U1016 | Serial Communications Malfunction | Cadillac, Chevrolet |
| 2 | B2960 | Security system sensor data incorrect but valid | Chevrolet |
| 2 | P0010 | Camshaft Position 'A' Actuator Circuit Malfunction (Bank 1) | Toyota |
| 2 | P0012 | Camshaft Position 'A' Over-Retarded (Bank 1) | Ford, Toyota |
| 2 | P0016 | Crankshaft/Camshaft Timing Misalignment | Toyota |
| 2 | P0022 | Camshaft Position 'A' Timing Over-Retarded (Bank 2) | Ford |
| 2 | P0038 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit High Voltage | Cadillac, Chrysler |
| 2 | P0087 | Fuel Rail Pressure Too Low | Chevrolet, Mercedes-Benz |
| 2 | P0093 | Fuel System Large Leak Detected | Chevrolet, Nissan |
| 2 | P0107 | MAP Sensor Circuit Low Voltage | Chrysler, Ford |
| 2 | P0108 | MAP Sensor Circuit High Voltage | Chrysler, Isuzu |
| 2 | P0118 | ECT Sensor Circuit High Voltage | Hyundai, Volkswagen |
| 2 | P0122 | TP Sensor Circuit Low Voltage | Chevrolet, Jeep |
| 2 | P0128 | Engine Coolant Temperature Below Thermostat Regulating Temperature | Chevrolet, Pontiac |
| 2 | P0133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response | Mercedes-Benz, Toyota |
| 2 | P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction | Ford, Mercedes-Benz |
| 2 | P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction | Dodge, Mercedes-Benz |
| 2 | P0175 | Fuel System Rich (Bank 2) | Dodge, Ford |
| 2 | P0191 | Fuel Rail Pressure Sensor Performance | Ford |
| 2 | P0336 | Crankshaft Position Sensor Performance | Chevrolet |
| 2 | P0341 | CMP Sensor Performance | Acura, Buick |
| 2 | P0343 | CMP Sensor Circuit High Voltage | Kia, Saturn |
| 2 | P0344 | Camshaft Position Sensor Signal Intermittent | Chrysler, Dodge |
| 2 | P0350 | Ignition Coil Primary/Secondary Circuit Malfunction | Chevrolet |
| 2 | P0353 | Ignition Coil 3 Control Circuit Malfunction | Ford, Toyota |
| 2 | P0400 | EGR System Recirculation Flow | Nissan, Subaru |
| 2 | P0430 | Catalyst System Low Efficiency (Bank 2) | Ford |
| 2 | P0440 | General EVAP System Failure | Dodge, Isuzu |
| 2 | P0441 | EVAP Purge System Performance | Toyota |
| 2 | P0442 | EVAP System Small Leak Detected | Chevrolet, Volvo |
| 2 | P0446 | EVAP Vent System Performance | Ford, Mazda |
| 2 | P0452 | Fuel Tank Pressure Sensor Circuit Low Voltage | Chevrolet, Ford |
| 2 | P0502 | VSS Circuit Low Input | Isuzu, Subaru |
| 2 | P0605 | Control Module Programming Read Only Memory | Ford |
| 2 | P0630 | VIN Not Programmed In PCM | Cadillac, Ford |
| 2 | P1131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean | Ford |
| 2 | P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching | Chevrolet, Pontiac |
| 2 | P1151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Indicates A/F Ratio Too Lean | Ford, Volkswagen |
| 2 | P1211 | ABS/TCS Control Unit Malfunction | Ford |
| 2 | P1233 | Fuel System Disabled Or Offline | Ford |
| 2 | P1313 | ETC System - Ice Blockage / Short Circuit To Voltage | Jaguar |
| 2 | P1350 | Bypass Line Monitor Circuit Malfunction | Chevrolet |
| 2 | P1518 | Throttle Actuator Control Module Serial Data Malfunction | Subaru |
| 2 | P1631 | Theft Deterrent Fuel Enable Signal Not Correct | Cadillac, Chevrolet |
| 2 | P1870 | Transmission Component Slipping | Chevrolet, Isuzu |
| 2 | P2188 | Fuel Trim System Rich At Idle (Bank 1) | Hyundai, Mercedes-Benz |
| 2 | P2290 | Injector Control Pressure Too Low | Ford |
| 2 | P2614 | Camshaft Position Output Circuit Malfunction | Ford |
| 2 | P2617 | Crankshaft Position Signal Output Circuit Malfunction | Ford |
| 2 | U1064 | Lost Communication With BCM or VCD Module | Chevrolet |
| 1 | B0300 | Oldsmobile | |
| 1 | B1014 | R code unprogrammed | Pontiac |
| 1 | B1352 | Ignition key-in circuit failure | Ford |
| 1 | B1483 | Brake Pedal Input Circuit Failure | Ford |
| 1 | B1818 | Wiper Rear Motor Up Relay Coil Circuit Failure | Ford |
| 1 | B2958 | Security system sensor data circuit high | Chevrolet |
| 1 | B2961 | key in ign. circuit malfunction | Oldsmobile |
| 1 | C1022 | Asr no can comm with m.e. | Mercedes-Benz |
| 1 | C1203 | ecm communication circuit malfunction | Pontiac |
| 1 | P0002 | Fuel volume regulator control circuit | Hyundai |
| 1 | P0018 | Crankshaft Position - Intake Camshaft Position Correlation (Bank 2) | Ford |
| 1 | P0021 | Camshaft Position 'A' Timing Over-Advanced / System Performance (Bank 2) | Ford |
| 1 | P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction | Chevrolet |
| 1 | P0031 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Low Voltage | Mazda |
| 1 | P0032 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit High Voltage | Chrysler |
| 1 | P0036 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Control Circuit Malfunction | Chevrolet |
| 1 | P0056 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Control Circuit Malfunction | Land Rover |
| 1 | P0059 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Resistance | Ford |
| 1 | P0069 | Abnormal Correlation Between MAP And BARO Sensor | Jeep |
| 1 | P0088 | Fuel Rail Pressure Too High | Volvo |
| 1 | P0090 | Fuel Pressure Regulator 1 Control Circuit Malfunction | Volvo |
| 1 | P0091 | Fuel Pressure Regulator 1 Control Circuit Low Voltage | Chevrolet |
| 1 | P0100 | Mass Airflow Sensor Circuit Malfunction | Ford |
| 1 | P0106 | MAP Sensor Performance | Volkswagen |
| 1 | P0113 | IAT Sensor Circuit High Voltage | Chevrolet |
| 1 | P0116 | ECT Sensor Performance | Volvo |
| 1 | P0130 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Malfunction | Toyota |
| 1 | P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage | Chevrolet |
| 1 | P0132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage | Lexus |
| 1 | P0134 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Activity | Dodge |
| 1 | P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | Mazda |
| 1 | P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Malfunction | Subaru |
| 1 | P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage | Subaru |
| 1 | P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | Subaru |
| 1 | P0148 | Fuel Delivery Error | Dodge |
| 1 | P0150 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Malfunction | BMW |
| 1 | P0151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage | Chevrolet |
| 1 | P0153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response | Ford |
| 1 | P0156 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction | BMW |
| 1 | P0158 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage | Dodge |
| 1 | P0160 | Heated Oxygen Sensor (Bank 2 Sensor 2) Insufficient Activity | Isuzu |
| 1 | P0161 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction | Ford |
| 1 | P0173 | Fuel Trim Lean Or Rich (Bank 2) | BMW |
| 1 | P0193 | Fuel Rail Pressure Sensor Circuit High Voltage | Ford |
| 1 | P0200 | Fuel Injector Circuit Malfunction | GMC |
| 1 | P0201 | Fuel Injector 1 Control Circuit Malfunction | Chevrolet |
| 1 | P0203 | Fuel Injector 3 Control Circuit Malfunction | Chevrolet |
| 1 | P0217 | Engine Coolant Over-Temperature Condition | Nissan |
| 1 | P0234 | Turbocharger Engine Overboost | Volkswagen |
| 1 | P0238 | Turbocharger Boost Circuit High Voltage | Volkswagen |
| 1 | P0275 | Cylinder 5 Balance System Malfunction | Ford |
| 1 | P0284 | Cylinder 8 Balance System Malfunction | Ford |
| 1 | P0307 | Cylinder 7 Misfire Detected | Ford |
| 1 | P0308 | Cylinder 8 Misfire Detected | Ford |
| 1 | P0316 | Misfire Occurred In First 1,000 Revolutions | Ford |
| 1 | P0320 | No Crank Reference Signal To PCM | Dodge |
| 1 | P0325 | Knock Sensor Circuit Malfunction | Nissan |
| 1 | P0332 | Knock Sensor Circuit Low Frequency (Bank 2) | Chevrolet |
| 1 | P0338 | CKP Sensor Circuit High Duty Cycle | Chevrolet |
| 1 | P0345 | Camshaft Position Sensor 'A' Circuit Malfunction (Bank 2) | Nissan |
| 1 | P0348 | Intake Camshaft Position Sensor Circuit High Input (Bank 2) | Volkswagen |
| 1 | P0354 | Ignition Coil 4 Control Circuit Malfunction | Ford |
| 1 | P0355 | Ignition Coil 5 Control Circuit Malfunction | Dodge |
| 1 | P0378 | Timing reference high resolutionsignal B intermittant/eratic pulse | Saturn |
| 1 | P0380 | Glow Plug Feedback Circuit | Chevrolet |
| 1 | P0402 | Excessive EGR Flow Detected | Mercury |
| 1 | P0405 | EGR Position Sensor Circuit Low Voltage | Ford |
| 1 | P0406 | EGR Position Sensor Circuit High Voltage | Dodge |
| 1 | P0411 | Secondary AIR System Incorrect Airflow Detected | Ford |
| 1 | P043E | EVAP System Reference Orifice Clog Up | Scion |
| 1 | P043F | EVAP System Reference Orifice High Flow | Scion |
| 1 | P0449 | EVAP Vent Solenoid Control Circuit Malfunction | Chevrolet |
| 1 | P0453 | Fuel Tank Pressure Sensor Circuit High Voltage | Ford |
| 1 | P0476 | Exhaust Backpressure Regulator Malfunction (Self Test) | Ford |
| 1 | P0491 | Secondary AIR System Insufficient Flow Detected (Bank 1) | BMW |
| 1 | P0492 | Secondary air flow bank 2 | BMW |
| 1 | P0501 | Vehicle Speed Sensor 1 Performance | Cadillac |
| 1 | P0503 | VSS Circuit Intermittent | Subaru |
| 1 | P0512 | Starter Request Circuit Malfunction | Subaru |
| 1 | P0562 | System Voltage Too Low | Ford |
| 1 | P0575 | Cruise Control Switch Signal Circuit Malfunction | Chevrolet |
| 1 | P0600 | Serial Communication Link | Land Rover |
| 1 | P0603 | Control Module Long Term Memory Reset | Ford |
| 1 | P0689 | Engine Controls Ignition Relay Feedback Circuit Low Voltage | Chevrolet |
| 1 | P0711 | TFT Sensor Performance | Hyundai |
| 1 | P0742 | TCC System - Stuck On | Chevrolet |
| 1 | P0755 | 2-4 Solenoid Circuit Malfunction | Ford |
| 1 | P0851 | Park Neutral Position Switch Circuit Low Voltage | Subaru |
| 1 | P0852 | Park Neutral Position Switch Circuit High Voltage | Subaru |
| 1 | P1118 | Electronic Throttle System Motor Circuit Malfunction | Hyundai |
| 1 | P1125 | Accelerator Pedal Position System Malfunction | Chevrolet |
| 1 | P1128 | Closed Loop Fueling Not Achieved - Bank 1 | Volkswagen |
| 1 | P1132 | Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Rich | Ford |
| 1 | P1136 | Intake Valve Timing Control Circuit Malfunction (Bank 2) | Volkswagen |
| 1 | P1152 | Air Fuel Sensor (Bank 1 Sensor 1) Range/Performance (Low) | Ford |
| 1 | P1165 | Swirl Control Valve Control Vacuum Check Switch | Honda |
| 1 | P1171 | Fuel System Lean During Acceleration | Chevrolet |
| 1 | P1175 | Air Fuel Imbalance (Bank 2) | BMW |
| 1 | P1178 | Electronic Throttle System Motor Battery Voltage Open | Hyundai |
| 1 | P1187 | Fuel Tank Temperature Sensor Circuit Low Voltage | Mercedes-Benz |
| 1 | P1192 | Intake Air Temperature Sensor Circuit Low Voltage | Chevrolet |
| 1 | P1256 | malf controlled fuel air metering | Volkswagen |
| 1 | P1282 | Fuel Pump Relay Control Circuit Malfunction | Dodge |
| 1 | P1296 | 5-Volt VREF Supply Not Present | Volkswagen |
| 1 | P1314 | ETC System - Ice Blockage / Short Circuit To Ground | Jaguar |
| 1 | P1316 | Spark Plug Detection Module Circuit Malfunction (Bank 2) | Jaguar |
| 1 | P1320 | Igniter 5 Circuit Malfunction | Nissan |
| 1 | P1345 | Camshaft To Crankshaft Position Correlation | Chevrolet |
| 1 | P1361 | ICM Ignition Control Circuit Low Voltage | Ford |
| 1 | P1388 | Auto Shutdown Relay Control Circuit Malfunction | Dodge |
| 1 | P1391 | CKP Or CMP Sensor Signal Intermittent | Plymouth |
| 1 | P1393 | 'G' Sensor Rough Road High Voltage | Ford |
| 1 | P1400 | Cold Start Emission Reduction Control System | Dodge |
| 1 | P1410 | Fuel Tank Pressure Control Solenoid Circuit Malfunction | Subaru |
| 1 | P1416 | Secondary Air Injection System (Bank 2) | Dodge |
| 1 | P1424 | EVAP System Leak Detection Pump Flow High/Low | Volkswagen |
| 1 | P1429 | Motor Driving Module Overheating Signal Circuit Malfunction | BMW |
| 1 | P1451 | Barometric Pressure Sensor Signal Range/Performance | Ford |
| 1 | P1470 | boost pressure solinoid open or shortedto ground | Land Rover |
| 1 | P1475 | Low Fan Relay Control Circuit Malfunction | Volkswagen |
| 1 | P1479 | High Fan Control / Fan Control 3 Primary Circuit Malfunction | Volkswagen |
| 1 | P1482 | Cooling Fan Speed Output Circuit Malfunction | Dodge |
| 1 | P1492 | Battery Temperature Sensor Circuit High Voltage | Dodge |
| 1 | P1496 | 5-Volt VREF Supply Voltage Too Low | Dodge |
| 1 | P1516 | TAC Module Throttle Actuator Position Performance | Chevrolet |
| 1 | P1519 | Idle Air Control Valve Circuit Malfunction | Mercedes-Benz |
| 1 | P1522 | Brake Booster (Master Power) Vacuum Sensor Low Voltage | Audi |
| 1 | P1523 | Throttle Closed Position Performance | BMW |
| 1 | P1537 | Air Conditioning Request Circuit Low Input | Mazda |
| 1 | P1540 | Air Conditioning Refrigerant Over-Pressure - Air Conditioning Disabled | Subaru |
| 1 | P1570 | Laser Radar Sensor Circuit Malfunction | Volkswagen |
| 1 | P1591 | Neutral Position Switch Low Input | Subaru |
| 1 | P1599 | A/C Pressure Sensor Circuit Low Voltage | Cadillac |
| 1 | P1641 | MIL Control Circuit Malfunction | Mercedes-Benz |
| 1 | P1668 | Generator L-Terminal Control Circuit Malfunction | Land Rover |
| 1 | P1673 | Engine Hot Lamp Control Circuit Malfunction | Land Rover |
| 1 | P1685 | Smart Key Immobilizer Module Invalid Key | Jeep |
| 1 | P1740 | Lockup Select Solenoid Circuit Malfunction | Cadillac |
| 1 | P1747 | EPC Solenoid Circuit Malfunction | Mercedes-Benz |
| 1 | P1816 | TFP Valve Position Switch Indicates P/N With Drive Ratio | Ford |
| 1 | P2015 | Intake Manifold Runner Position Sensor Performance | Mercedes-Benz |
| 1 | P2096 | Downstream Fuel System Lean - HO2S-12 (Bank 1 Sensor 2) | Chrysler |
| 1 | P2121 | Accelerator Pedal Position Sensor 1 Performance | Lexus |
| 1 | P2128 | Accelerator Pedal Position Sensor 2 Circuit High Voltage | Lexus |
| 1 | P2136 | Cylinder 4 Glow Plug Excess Temperature | Dodge |
| 1 | P2142 | EGR Throttle Valve Solenoid Control Circuit High Voltage | Dodge |
| 1 | P2149 | Injector Positive Voltage Relay Circuit Group 2 (Injectors 6 & 7) | Chevrolet |
| 1 | P2187 | Fuel Trim System Lean At Idle (Bank 1) | BMW |
| 1 | P2189 | Fuel Trim System Lean At Idle (Bank 2) | BMW |
| 1 | P2190 | Fuel Trim System Rich At Idle (Bank 2) | Mercedes-Benz |
| 1 | P2197 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Lean" | Ford |
| 1 | P2262 | Turbo/Super Charger Boost Pressure Not Detected - Mechanical | Ford |
| 1 | P2291 | Injector Control Pressure Too Low - Engine Cranking | Ford |
| 1 | P2302 | Ignition Coil 1 Secondary Circuit Insufficient Ionization | Chrysler |
| 1 | P2305 | Ignition Coil 2 Secondary Circuit Insufficient Ionization | Chrysler |
| 1 | P2401 | EVAP Leak Detection Pump Control Circuit Low | Scion |
| 1 | P2402 | EVAP Leak Detection Pump Control Circuit High | Scion |
| 1 | P2404 | EVAP Leak Detection Pump Sense Circuit Range/Performance | Mazda |
| 1 | P2419 | EVAP Switching Valve Control Circuit Low | Scion |
| 1 | P2440 | Secondary Air Injection System Control/Shut-Off Valve Stuck Open | Subaru |
| 1 | P2444 | Secondary Air Injection System Control/Shut-Off Valve Stuck On | Chevrolet |
| 1 | P2638 | Torque Management Feedback Signal Performance | Dodge |
| 1 | P2A00 | Heated Oxygen Sensor (Bank 1 Sensor 1) Closed Loop Performance | Land Rover |
| 1 | P2A03 | Air Fuel Sensor (Bank 2 Sensor 1) Circuit Range / Performance | Land Rover |
| 1 | U0073 | Control Module Communication Bus Off | Chevrolet |
| 1 | U0100 | Lost Communication With ECM/PCM | Dodge |
| 1 | U0107 | Throttle Actuator Control Serial Data Circuit Malfunction | Chevrolet |
| 1 | U0121 | Lost Communication With Antilock Brake System Module | Chevrolet |
| 1 | U1024 | Loss Of Communication With Transmission Control Module | Chevrolet |
| 1 | U1040 | Lost Communication With Antilock Brake System Module | Cadillac |
| 1 | U1041 | Loss of Electronic Brake Controller Communication | Ford |
| 1 | U1059 | Egr insufficient flow | Ford |
| 1 | U1088 | Loss of Communication With Sensing And Diagnostic Module | Cadillac |
| 1 | U1147 | Data Circuit Malfunction | Ford |
| 1 | U1152 | Lost Communication With HCM Module | Chevrolet |
| 1 | U1160 | lost communication with drivers door module | Chevrolet |
| 1 | U1255 | Class 2 Communication Malfunction | Cadillac |
| 1 | U1305 | Class 2 Data Line Circuit High Or Low Voltage | Chevrolet |
| 1 | U1335 | driver door module | Ford |
| 1 | U1900 | CAN System Communication Error | Ford |
| 1 | U2023 | Fault recieved from external node | Ford |
