Project Atlas

Atlas Master Index

Browse every published diagnostic chapter by code family, vehicle system, knowledge cluster, and recent release.

1,045Published chapters

21Code families

158Vehicle systems

1Knowledge clusters

Browse by type

OBD-II code categories

Code Families

Browse by diagnostic range

P00XX9 chapters

P0010Intake Camshaft Position Actuator Circuit (Bank 1)P0011Intake Camshaft Position Timing Over-Advanced (Bank 1)P0012Intake Camshaft Position Timing Over-Retarded (Bank 1)P0013Exhaust Camshaft Position Actuator Circuit (Bank 1)P0014Exhaust Camshaft Position Timing Over-Advanced (Bank 1)P0016Crankshaft/Camshaft Position Correlation (Bank 1 Sensor A)P0017Crankshaft/Camshaft Position Correlation (Bank 1 Sensor B)P0087Fuel Rail/System Pressure Too Low P0088Fuel Rail/System Pressure Too High

P01XX52 chapters

P02XX42 chapters

P0201Injector Circuit/Open - Cylinder 1 P0202Injector Circuit/Open - Cylinder 2 P0203Injector Circuit/Open - Cylinder 3 P0204Injector Circuit/Open - Cylinder 4 P0205Injector Circuit/Open - Cylinder 5 P0206Injector Circuit/Open - Cylinder 6 P0207Injector Circuit/Open - Cylinder 7 P0208Injector Circuit/Open - Cylinder 8 P0217Engine Coolant Over Temperature Condition P0218Transmission Fluid Over Temperature Condition P0220Throttle/Pedal Position Sensor/Switch B Circuit Malfunction P0221Throttle/Pedal Position Sensor/Switch B Circuit Range/Performance P0222Throttle/Pedal Position Sensor/Switch B Circuit Low Input P0223Throttle/Pedal Position Sensor/Switch B Circuit High Input P0230Fuel Pump Primary Circuit Malfunction P0231Fuel Pump Secondary Circuit Low P0232Fuel Pump Secondary Circuit High P0234Turbocharger/Supercharger Overboost Condition P0235Turbocharger Boost Sensor A Circuit Malfunction P0236Turbocharger Boost Sensor A Circuit Range/Performance P0237Turbocharger Boost Sensor A Circuit Low P0238Turbocharger Boost Sensor A Circuit High P0243Turbocharger Wastegate Solenoid A Malfunction P0244Turbocharger Wastegate Solenoid A Range/Performance P0245Turbocharger Wastegate Solenoid A Low P0246Turbocharger Wastegate Solenoid A High P0261Cylinder 1 Injector Circuit Low P0262Cylinder 1 Injector Circuit High P0264Cylinder 2 Injector Circuit Low P0265Cylinder 2 Injector Circuit High P0267Cylinder 3 Injector Circuit Low P0268Cylinder 3 Injector Circuit High P0270Cylinder 4 Injector Circuit Low P0271Cylinder 4 Injector Circuit High P0273Cylinder 5 Injector Circuit Low P0274Cylinder 5 Injector Circuit High P0276Cylinder 6 Injector Circuit Low P0277Cylinder 6 Injector Circuit High P0279Cylinder 7 Injector Circuit Low P0280Cylinder 7 Injector Circuit High P0282Cylinder 8 Injector Circuit Low P0283Cylinder 8 Injector Circuit High

P03XX43 chapters

P04XX71 chapters

P05XX16 chapters

P0500Vehicle Speed Sensor Malfunction P0505Idle Control System Malfunction P0506Idle Control System RPM Lower Than Expected P0507Idle Control System RPM Higher Than Expected P0520Engine Oil Pressure Sensor/Switch Circuit Malfunction P0521Engine Oil Pressure Sensor/Switch Range/Performance P0522Engine Oil Pressure Sensor/Switch Low Voltage P0523Engine Oil Pressure Sensor/Switch High Voltage P0530A/C Refrigerant Pressure Sensor Circuit Malfunction P0532A/C Refrigerant Pressure Sensor Circuit Low Input P0533A/C Refrigerant Pressure Sensor Circuit High Input P0562System Voltage Low P0563System Voltage High P0571Brake Switch A Circuit Malfunction P0572Brake Switch A Circuit Low P0573Brake Switch A Circuit High

P06XX26 chapters

P0600Serial Communication Link Malfunction P0601Internal Control Module Memory Check Sum Error P0602Control Module Programming Error P0603Internal Control Module Keep Alive Memory Error P0604Internal Control Module RAM Error P0605Internal Control Module ROM Error P0606PCM Processor Fault P0615Starter Relay Circuit Malfunction P0616Starter Relay Circuit Low P0617Starter Relay Circuit High P0620Generator Control Circuit P0621Generator Lamp L Control Circuit Malfunction P0622Generator Field Control Circuit P0630VIN Not Programmed or Incompatible P0641Sensor Reference Voltage A Circuit/Open P0642Sensor Reference Voltage A Circuit Low P0643Sensor Reference Voltage A Circuit High P0650Malfunction Indicator Lamp Control Circuit Malfunction P0651Sensor Reference Voltage B Circuit/Open P0652Sensor Reference Voltage B Circuit Low P0653Sensor Reference Voltage B Circuit High P0685ECM/PCM Power Relay Control Circuit Open P0686ECM/PCM Power Relay Control Circuit Low P0687ECM/PCM Power Relay Control Circuit High P0691Fan 1 Control Circuit Low P0692Fan 1 Control Circuit High

P07XX43 chapters

P0700Transmission Control System Malfunction P0705Transmission Range Sensor Circuit Malfunction P0706Transmission Range Sensor Circuit Range/Performance P0707Transmission Range Sensor Circuit Low Input P0708Transmission Range Sensor Circuit High Input P0710Transmission Fluid Temperature Sensor Circuit Malfunction P0711Transmission Fluid Temperature Sensor Range/Performance P0712Transmission Fluid Temperature Sensor Low Input P0713Transmission Fluid Temperature Sensor High Input P0715Input/Turbine Speed Sensor Circuit P0716Input/Turbine Speed Sensor Circuit Range/Performance P0717Input/Turbine Speed Sensor Circuit No Signal P0720Output Speed Sensor Circuit P0721Output Speed Sensor Circuit Range/Performance P0722Output Speed Sensor Circuit No Signal P0725Engine Speed Input Circuit Malfunction P0726Engine Speed Input Circuit Range/Performance P0730Incorrect Gear Ratio P0731Gear 1 Incorrect Ratio P0732Gear 2 Incorrect Ratio P0733Gear 3 Incorrect Ratio P0734Gear 4 Incorrect Ratio P0735Gear 5 Incorrect Ratio P0736Reverse Incorrect Ratio P0740Torque Converter Clutch Circuit Malfunction P0741Torque Converter Clutch Performance P0742Torque Converter Clutch Circuit Stuck On P0743Torque Converter Clutch Circuit Electrical P0744Torque Converter Clutch Circuit Intermittent P0750Shift Solenoid A Malfunction P0751Shift Solenoid A Performance or Stuck Off P0752Shift Solenoid A Stuck On P0753Shift Solenoid A Electrical P0755Shift Solenoid B Malfunction P0756Shift Solenoid B Performance or Stuck Off P0757Shift Solenoid B Stuck On P0758Shift Solenoid B Electrical P0760Shift Solenoid C Malfunction P0761Shift Solenoid C Performance or Stuck Off P0762Shift Solenoid C Stuck On P0763Shift Solenoid C Electrical P0780Shift Malfunction P0785Shift/Timing Solenoid Malfunction

P08XX88 chapters

P09XX95 chapters

P0900Clutch Actuator Circuit/Open P0901Clutch Actuator Circuit Range/Performance P0902Clutch Actuator Circuit Low P0903Clutch Actuator Circuit High P0904Gate Select Position Circuit P0905Gate Select Position Circuit Range/Performance P0906Gate Select Position Circuit Low P0907Gate Select Position Circuit High P0908Gate Select Position Circuit Intermittent P0909Gate Select Control Error P0910Gate Select Actuator Circuit/Open P0911Gate Select Actuator Circuit Range/Performance P0912Gate Select Actuator Circuit Low P0913Gate Select Actuator Circuit High P0914Gear Shift Position Circuit P0915Gear Shift Position Circuit Range/Performance P0916Gear Shift Position Circuit Low P0917Gear Shift Position Circuit High P0918Gear Shift Position Circuit Intermittent P0919Gear Shift Position Control Error P0920Gear Shift Forward Actuator Circuit/Open P0921Gear Shift Forward Actuator Circuit Range/Performance P0922Gear Shift Forward Actuator Circuit Low P0923Gear Shift Forward Actuator Circuit High P0924Gear Shift Reverse Actuator Circuit/Open P0925Gear Shift Reverse Actuator Circuit Range/Performance P0926Gear Shift Reverse Actuator Circuit Low P0927Gear Shift Reverse Actuator Circuit High P0928Gear Shift Lock Solenoid Control Circuit A/Open P0929Gear Shift Lock Solenoid Control Circuit A Range/Performance P0930Gear Shift Lock Solenoid Control Circuit A Low P0931Gear Shift Lock Solenoid Control Circuit A High P0932Hydraulic Pressure Sensor Circuit P0933Hydraulic Pressure Sensor Range/Performance P0934Hydraulic Pressure Sensor Circuit Low P0935Hydraulic Pressure Sensor Circuit High P0936Hydraulic Pressure Sensor Circuit Intermittent P0942Hydraulic Pressure Unit P0943Hydraulic Pressure Unit Cycling Period Too Short P0944Hydraulic Pressure Unit Loss of Pressure P0945Hydraulic Pump Relay Circuit/Open P0946Hydraulic Pump Relay Circuit Range/Performance P0947Hydraulic Pump Relay Circuit Low P0948Hydraulic Pump Relay Circuit High P0949Automatic Shift Manual Adaptive Learning Not Complete P0950Auto Shift Manual Control Circuit P0951Auto Shift Manual Control Circuit Range/Performance P0952Auto Shift Manual Control Circuit Low P0953Auto Shift Manual Control Circuit High P0954Auto Shift Manual Control Circuit Intermittent

P10XX100 chapters

P1000OBD System Readiness Test Not Complete P1001Key On Engine Running Test Not Complete P1002System Monitor Testing Incomplete P1003Fuel Composition Sensor Circuit P1004Short Runner Valve Control Performance P1005Fuel Shutoff Valve Control P1006Manifold Absolute Pressure Performance P1007Ignition Circuit Fault P1008Engine Coolant Bypass Valve Control P1009Manufacturer-Specific Powertrain DTC P1009 — Definition Varies by Manufacturer P1010Mass Air Flow Circuit Fault P1011Fuel Pump Circuit Performance P1012Fuel Pressure Regulator Performance P1013Camshaft Position Actuator Fault P1014Exhaust Camshaft Position Performance P1015Engine Torque Management Fault P1016Reductant Quality Sensor Circuit P1017Reductant Injector Circuit P1018NOx Sensor Circuit Fault P1019Reductant Tank Heater Circuit P1020Throttle Actuator Position Fault P1021Oil Control Valve Performance P1022Intake Air Control Fault P1023Fuel Pressure Sensor Fault P1024Fuel Pump Control Module Fault P1025Engine Oil Pressure Control Fault P1026Coolant Control Valve Fault P1027Intake Valve Control Fault P1028EGR Temperature Sensor Fault P1029Exhaust Temperature Sensor Fault P1030Air Fuel Ratio Sensor Circuit P1031Air Fuel Ratio Sensor Heater Circuit P1032Oxygen Sensor Heater Control Circuit P1033NOx Sensor Signal Performance P1034Reductant Pressure Sensor Circuit P1035EGR Valve Position Sensor Circuit P1036Manufacturer-Specific Powertrain DTC P1036 — Definition Varies by Manufacturer P1037Manifold Absolute Pressure Sensor Performance P1038Fuel Rail Pressure Control Performance P1039Fuel Injector Control Circuit P1040Variable Valve Timing Control Circuit P1041Camshaft Actuator Control Circuit P1042Engine Oil Temperature Sensor Circuit P1043Engine Oil Pressure Sensor Performance P1044Throttle Control System Performance P1045Throttle Control Motor Circuit P1046Turbocharger Control Circuit P1047Turbocharger Bypass Valve Circuit P1048Wastegate Control Solenoid Circuit P1049Boost Pressure Sensor Performance

P11XX78 chapters

P12XX11 chapters

P1200Manufacturer-Specific Powertrain DTC P1200 — Definition Varies by Manufacturer P1211Injector Control Pressure Higher/Lower Than Desired P1220Throttle Position Sensor 2 P1233Fuel Pump Driver Module Offline P1235Fuel Pump Control Out of Range P1245Alternator Load Input Failed P1258Engine Coolant Overtemperature Protection Active P1260Theft Detected Vehicle Immobilized P1270Engine RPM Governor P1285Cylinder Head Overtemperature P1299Cylinder Head Overtemperature Protection Active

P14XX19 chapters

P1400EGR Flow Out of Range P1401DPFE Sensor Circuit High P1405DPFE Upstream Hose Off P1416Secondary Air Injection Bank 2 P1421Cold Start Control P1435A/C Pressure Switch Circuit P1443EVAP Purge Control Valve P1450Unable To Bleed Up Fuel Tank Vacuum P1451EVAP Canister Vent Solenoid P1455Gross EVAP Leak P1460Cooling Fan Control Circuit P1474Low Fan Control Circuit P1481Cooling Fan Circuit P1491Radiator Fan Control Relay P1494Leak Detection Pump Switch P1495Leak Detection Pump Solenoid P14965 Volt Supply Output Low P1498Manufacturer-Specific Powertrain DTC P1498 — Definition Varies by Manufacturer P1499Canister Vent Solenoid Circuit

P15XX100 chapters

P16XX75 chapters

P20XX10 chapters

P2002Diesel Particulate Filter Efficiency Below Threshold P2003Diesel Particulate Filter Temperature Sensor P200AIntake Manifold Runner Performance Bank 1 P2031Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2 P2033Exhaust Gas Temperature Sensor High P2047Reductant Injector Circuit Bank 1 Unit 1 P205BReductant Tank Temperature Sensor P206BReductant Quality Sensor P207FReductant Quality Performance P20EESCR NOx Catalyst Efficiency Below Threshold

P21XX100 chapters

P22XX57 chapters

P24XX9 chapters

P2452DPF Pressure Sensor Circuit P2453DPF Pressure Sensor Range/Performance P2454DPF Pressure Sensor Low P2455DPF Pressure Sensor High P2457EGR Cooler Efficiency Below Threshold P2459DPF Regeneration Frequency P2463Diesel Particulate Filter Restriction - Soot Accumulation P246BVehicle Conditions Incorrect for DPF Regeneration P24A4Particulate Filter Restriction - Soot Accumulation Too High (Bank 1)

P25XX1 chapters

P2503Charging System Voltage Low

Vehicle Systems

Browse by system

Manufacturer-Specific Powertrain Control204 chapters

P1009Manufacturer-Specific Powertrain DTC P1009 — Definition Varies by Manufacturer P1036Manufacturer-Specific Powertrain DTC P1036 — Definition Varies by Manufacturer P1051Manufacturer-Specific Powertrain DTC P1051 — Definition Varies by Manufacturer P1080Manufacturer-Specific Powertrain DTC P1080 — Definition Varies by Manufacturer P1088Idle Air Control Performance P1099System Voltage Performance P1105MAP/BARO Pressure Switch Solenoid Valve P1133Manufacturer-Specific Powertrain DTC P1133 — Definition Varies by Manufacturer P1141Load Calculation Cross Check Range/Performance P1148Closed Loop Control Function Bank 1 P1149Closed Loop Control Function Bank 2 P1168Closed Loop Control Function Bank 1 P1169Closed Loop Control Function Bank 2 P1171System Too Lean During Acceleration P1172System Too Rich During Acceleration P1200Manufacturer-Specific Powertrain DTC P1200 — Definition Varies by Manufacturer P1245Alternator Load Input Failed P1260Theft Detected Vehicle Immobilized P1270Engine RPM Governor P1285Cylinder Head Overtemperature P1299Cylinder Head Overtemperature Protection Active P1416Secondary Air Injection Bank 2 P1421Cold Start Control P1435A/C Pressure Switch Circuit P1460Cooling Fan Control Circuit P1474Low Fan Control Circuit P1481Cooling Fan Circuit P1491Radiator Fan Control Relay P1494Leak Detection Pump Switch P1495Leak Detection Pump Solenoid

Automatic Transmission Control41 chapters

P0700Transmission Control System Malfunction P0705Transmission Range Sensor Circuit Malfunction P0706Transmission Range Sensor Circuit Range/Performance P0707Transmission Range Sensor Circuit Low Input P0708Transmission Range Sensor Circuit High Input P0736Reverse Incorrect Ratio P0802Transmission Control System MIL Request Circuit/Open P0814Transmission Range Display Circuit P0817Starter Disable Circuit P0818Driveline Disconnect Switch Input Circuit P0836Four Wheel Drive Switch Circuit P0837Four Wheel Drive Switch Circuit Range/Performance P0838Four Wheel Drive Switch Circuit Low P0839Four Wheel Drive Switch Circuit High P0853Drive Switch Input Circuit P0854Drive Switch Input Circuit Low P0855Drive Switch Input Circuit High P0856Traction Control Input Signal P0858Traction Control Input Signal Low P0859Traction Control Input Signal High P0860Gear Shift Module Communication Circuit P0861Gear Shift Module Communication Circuit Low P0862Gear Shift Module Communication Circuit High P0863TCM Communication Circuit P0865TCM Communication Circuit Low P0866TCM Communication Circuit High P0894Transmission Component Slipping P0904Gate Select Position Circuit P0905Gate Select Position Circuit Range/Performance P0906Gate Select Position Circuit Low

Fuel Delivery and Pressure Control37 chapters

P1030Air Fuel Ratio Sensor Circuit P1031Air Fuel Ratio Sensor Heater Circuit P1038Fuel Rail Pressure Control Performance P1039Fuel Injector Control Circuit P1093Fuel Injector Supply Voltage Circuit P1094Fuel Injector Control Module Fault P1095Fuel Pump Relay Control Circuit P1128Fuel Trim System Too Lean P1129Fuel Trim System Too Rich P1135Air/Fuel Sensor Heater Circuit P1136Fuel Trim System Lean at Idle P1137Fuel Trim System Rich at Idle P1139Water in Fuel Indicator Circuit P1142Fuel Restriction Condition P1150Air/Fuel Sensor Range Performance P1155Air/Fuel Sensor Heater Circuit Bank 2 P1156Fuel Trim Lean Bank 2 P1157Fuel Trim Rich Bank 2 P1160Fuel Rail Sensor Performance P1161Fuel Rail Pressure Sensor Low P1162Fuel Rail Pressure Sensor High P1163Fuel Rail Pressure Control Performance P1164Fuel Pressure Regulator Control Circuit P1165Fuel Temperature Sensor Performance P1166Air/Fuel Ratio Sensor Heater Low P1167Air/Fuel Ratio Sensor Heater High P1170Fuel Trim Malfunction P1173Fuel Trim Adaptation Additive P1174Fuel Trim Cylinder Balance Bank 1 P1175Fuel Trim Cylinder Balance Bank 2

Transmission Hydraulic Pressure Control34 chapters

P0932Hydraulic Pressure Sensor Circuit P0933Hydraulic Pressure Sensor Range/Performance P0934Hydraulic Pressure Sensor Circuit Low P0935Hydraulic Pressure Sensor Circuit High P0936Hydraulic Pressure Sensor Circuit Intermittent P0942Hydraulic Pressure Unit P0943Hydraulic Pressure Unit Cycling Period Too Short P0944Hydraulic Pressure Unit Loss of Pressure P0945Hydraulic Pump Relay Circuit/Open P0946Hydraulic Pump Relay Circuit Range/Performance P0947Hydraulic Pump Relay Circuit Low P0948Hydraulic Pump Relay Circuit High P0960Pressure Control Solenoid A Control Circuit/Open P0961Pressure Control Solenoid A Control Circuit Range/Performance P0962Pressure Control Solenoid A Control Circuit Low P0963Pressure Control Solenoid A Control Circuit High P0964Pressure Control Solenoid B Control Circuit/Open P0965Pressure Control Solenoid B Control Circuit Range/Performance P0966Pressure Control Solenoid B Control Circuit Low P0967Pressure Control Solenoid B Control Circuit High P0968Pressure Control Solenoid C Control Circuit/Open P0969Pressure Control Solenoid C Control Circuit Range/Performance P0970Pressure Control Solenoid C Control Circuit Low P0971Pressure Control Solenoid C Control Circuit High P0987Transmission Fluid Pressure Sensor/Switch E Circuit P0988Transmission Fluid Pressure Sensor/Switch E Circuit Range/Performance P0989Transmission Fluid Pressure Sensor/Switch E Circuit Low P0990Transmission Fluid Pressure Sensor/Switch E Circuit High P0991Transmission Fluid Pressure Sensor/Switch E Circuit Intermittent P0992Transmission Fluid Pressure Sensor/Switch F Circuit

Electronic Throttle Control26 chapters

NOx Sensor and Exhaust Aftertreatment Monitoring23 chapters

Automatic Transmission Solenoid Control22 chapters

P0928Gear Shift Lock Solenoid Control Circuit A/Open P0929Gear Shift Lock Solenoid Control Circuit A Range/Performance P0930Gear Shift Lock Solenoid Control Circuit A Low P0931Gear Shift Lock Solenoid Control Circuit A High P0972Shift Solenoid A Control Circuit Range/Performance P0973Shift Solenoid A Control Circuit Low P0974Shift Solenoid A Control Circuit High P0975Shift Solenoid B Control Circuit Range/Performance P0976Shift Solenoid B Control Circuit Low P0977Shift Solenoid B Control Circuit High P0978Shift Solenoid C Control Circuit Range/Performance P0979Shift Solenoid C Control Circuit Low P0980Shift Solenoid C Control Circuit High P0981Shift Solenoid D Control Circuit Range/Performance P0982Shift Solenoid D Control Circuit Low P0983Shift Solenoid D Control Circuit High P0984Shift Solenoid E Control Circuit Range/Performance P0985Shift Solenoid E Control Circuit Low P0986Shift Solenoid E Control Circuit High P0997Shift Solenoid F Control Circuit Range/Performance P0998Shift Solenoid F Control Circuit Low P0999Shift Solenoid F Control Circuit High

Oxygen/Air-Fuel Sensor Control22 chapters

Fuel Injector Electrical Control20 chapters

Air Intake and Throttle Control20 chapters

P1086Throttle Position Sensor Rationality Fault P1100Mass Air Flow Sensor Intermittent P1101Mass Air Flow Sensor Out of Self-Test Range P1102Mass Air Flow Sensor Signal Low P1103Mass Air Flow Sensor Signal High P1104Mass Air Flow Sensor Ground Fault P1109Intake Air Temperature Sensor Intermittent P1111Intake Air Temperature Sensor Intermittent High Voltage P1112Intake Air Temperature Sensor Intermittent Low Voltage P1113Intake Air Temperature Sensor Open Circuit P1120Throttle Position Sensor Circuit P1121Throttle Position Sensor Inconsistent P1122Throttle Position Sensor Low Input P1123Throttle Position Sensor High Input P1124Throttle Position Sensor Intermittent P1125Throttle Control Motor Circuit P1126Throttle Control Motor Range/Performance P1159Intake Manifold Air Control Valve Fault P1220Throttle Position Sensor 2 P200AIntake Manifold Runner Performance Bank 1

Engine Sensor and Circuit Monitoring19 chapters

P1032Oxygen Sensor Heater Control Circuit P1035EGR Valve Position Sensor Circuit P1042Engine Oil Temperature Sensor Circuit P1046Turbocharger Control Circuit P1047Turbocharger Bypass Valve Circuit P1048Wastegate Control Solenoid Circuit P1049Boost Pressure Sensor Performance P1083Barometric Pressure Sensor Performance P1084MAP Sensor Rationality Fault P1085MAF Sensor Rationality Fault P1087Accelerator Pedal Position Sensor Fault P1089Engine Speed Sensor Performance P1090Crankshaft Position Sensor Performance P1096Cooling Fan Relay Control Circuit P1097Starter Relay Control Circuit P1098Alternator Control Circuit P1106MAP Sensor Circuit Range/Performance P1107MAP Sensor Circuit Low Voltage P1108MAP Sensor Circuit High Voltage

Automatic Transmission Gear / Shift Control18 chapters

P0893Multiple Gears Engaged P0895Shift Time Too Short P0896Shift Time Too Long P0914Gear Shift Position Circuit P0915Gear Shift Position Circuit Range/Performance P0916Gear Shift Position Circuit Low P0917Gear Shift Position Circuit High P0918Gear Shift Position Circuit Intermittent P0919Gear Shift Position Control Error P0920Gear Shift Forward Actuator Circuit/Open P0921Gear Shift Forward Actuator Circuit Range/Performance P0922Gear Shift Forward Actuator Circuit Low P0923Gear Shift Forward Actuator Circuit High P0949Automatic Shift Manual Adaptive Learning Not Complete P0950Auto Shift Manual Control Circuit P0951Auto Shift Manual Control Circuit Range/Performance P0952Auto Shift Manual Control Circuit Low P0953Auto Shift Manual Control Circuit High

Fuel Trim and Air/Fuel Control16 chapters

P0171System Too Lean (Bank 1)P0172System Too Rich (Bank 1)P0174System Too Lean (Bank 2)P0175System Too Rich (Bank 2)P2177System Too Lean Off Idle Bank 1 P2178System Too Rich Off Idle Bank 1 P2179System Too Rich Off Idle Bank 2 P2180System Too Rich Off Idle Bank 2 P2187System Too Lean at Idle Bank 1 P2188System Too Rich at Idle Bank 1 P2189System Too Lean at Idle Bank 2 P2190System Too Rich at Idle Bank 2 P2191System Too Lean at Higher Load Bank 1 P2192System Too Rich at Higher Load Bank 1 P2193System Too Lean at Higher Load Bank 2 P2194System Too Rich at Higher Load Bank 2

Transmission Fluid Pressure Monitoring16 chapters

Oxygen Sensor and Fuel Control14 chapters

P1130Heated Oxygen Sensor Insufficient Switching P1131Lack of HO2S Switch Indicates Lean P1132Lack of HO2S Switch Indicates Rich P1134HO2S Transition Time Ratio Fault P1138HO2S Sensor Rich or High Voltage P1143HO2S Signal Lean During Power Enrichment P1144HO2S Signal Rich During Deceleration P1146Heated Oxygen Sensor Circuit Low Bank 1 Sensor 1 P1147Heated Oxygen Sensor Circuit High Bank 1 Sensor 1 P1151HO2S Indicates Lean Bank 2 P1152HO2S Indicates Rich Bank 2 P1153HO2S Insufficient Switching Bank 2 Sensor 1 P1154HO2S Transition Time Ratio Bank 2 P1158HO2S Sensor Rich or High Voltage Bank 2

Automatic Transmission Shift-Solenoid Control13 chapters

P0750Shift Solenoid A Malfunction P0751Shift Solenoid A Performance or Stuck Off P0752Shift Solenoid A Stuck On P0753Shift Solenoid A Electrical P0755Shift Solenoid B Malfunction P0756Shift Solenoid B Performance or Stuck Off P0757Shift Solenoid B Stuck On P0758Shift Solenoid B Electrical P0760Shift Solenoid C Malfunction P0761Shift Solenoid C Performance or Stuck Off P0762Shift Solenoid C Stuck On P0763Shift Solenoid C Electrical P08031-4 Upshift Skip Shift Solenoid Control Circuit

Transmission Control Module / Powertrain Network13 chapters

P0880TCM Power Input Signal P0881TCM Power Input Signal Range/Performance P0882TCM Power Input Signal Low P0883TCM Power Input Signal High P0884TCM Power Input Signal Intermittent P0885TCM Power Relay Control Circuit/Open P0886TCM Power Relay Control Circuit Low P0887TCM Power Relay Control Circuit High P0888TCM Power Relay Sense Circuit P0889TCM Power Relay Sense Circuit Range/Performance P0890TCM Power Relay Sense Circuit Low P0891TCM Power Relay Sense Circuit High P0892TCM Power Relay Sense Circuit Intermittent

Evaporative Emissions Control12 chapters

Variable Valve Timing Control12 chapters

P1040Variable Valve Timing Control Circuit P1041Camshaft Actuator Control Circuit P1050Intake Camshaft Actuator Circuit Bank 1 P1052Intake Camshaft Actuator Circuit High Bank 1 P1053Exhaust Camshaft Actuator Circuit Bank 1 P1054Exhaust Camshaft Actuator Circuit Low Bank 1 P1055Exhaust Camshaft Actuator Circuit High Bank 1 P1056Intake Camshaft Actuator Circuit Bank 2 P1091Camshaft Position Sensor Performance P1110Intake Valve Timing Control Solenoid P1140Camshaft Position Timing Control P1145Intake Valve Timing Control Performance

Exhaust and Emissions Control12 chapters

P1127Exhaust Temperature Sensor Too High P1400EGR Flow Out of Range P1401DPFE Sensor Circuit High P1405DPFE Upstream Hose Off P2002Diesel Particulate Filter Efficiency Below Threshold P2003Diesel Particulate Filter Temperature Sensor P2031Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2 P2033Exhaust Gas Temperature Sensor High P205BReductant Tank Temperature Sensor P206BReductant Quality Sensor P207FReductant Quality Performance P20EESCR NOx Catalyst Efficiency Below Threshold

Fuel Injector Power Supply and Delivery12 chapters

Powertrain / Transmission Control11 chapters

P0780Shift Malfunction P0785Shift/Timing Solenoid Malfunction P0800Transfer Case Control System P0801Reverse Inhibit Control Circuit P08041-4 Upshift Skip Shift Lamp Control Circuit P0810Clutch Position Control Error P0811Excessive Clutch Slippage P0812Reverse Input Circuit P0813Reverse Output Circuit P0815Upshift Switch Circuit P0816Downshift Switch Circuit

Electronic Throttle and Accelerator Pedal Position Control10 chapters

Exhaust and Aftertreatment Control10 chapters

P229ENOx Sensor Heater Control P229FNOx Sensor Out of Range P2452DPF Pressure Sensor Circuit P2453DPF Pressure Sensor Range/Performance P2454DPF Pressure Sensor Low P2455DPF Pressure Sensor High P2457EGR Cooler Efficiency Below Threshold P2459DPF Regeneration Frequency P2463Diesel Particulate Filter Restriction - Soot Accumulation P246BVehicle Conditions Incorrect for DPF Regeneration

Forced Induction / Boost Control9 chapters

P0234Turbocharger/Supercharger Overboost Condition P0235Turbocharger Boost Sensor A Circuit Malfunction P0236Turbocharger Boost Sensor A Circuit Range/Performance P0237Turbocharger Boost Sensor A Circuit Low P0238Turbocharger Boost Sensor A Circuit High P0243Turbocharger Wastegate Solenoid A Malfunction P0244Turbocharger Wastegate Solenoid A Range/Performance P0245Turbocharger Wastegate Solenoid A Low P0246Turbocharger Wastegate Solenoid A High

Camshaft Position Sensing9 chapters

Ignition Coil Control9 chapters

Exhaust Gas Recirculation Control9 chapters

Engine Coolant Temperature Sensing8 chapters

P0115Engine Coolant Temperature Sensor Circuit P0117Engine Coolant Temperature Sensor Circuit Low Input P0118Engine Coolant Temperature Sensor Circuit High Input P2182Engine Coolant Temperature Sensor 2 Circuit P2183Engine Coolant Temperature Sensor 2 Circuit Range/Performance P2184Engine Coolant Temperature Sensor 2 Circuit Low P2185Engine Coolant Temperature Sensor 2 Circuit High P2186Engine Coolant Temperature Sensor 2 Circuit Intermittent/Erratic

Knock Detection / Spark Control8 chapters

P0325Knock Sensor 1 Circuit Malfunction P0326Knock Sensor 1 Circuit Range/Performance P0327Knock Sensor 1 Circuit Low Input P0328Knock Sensor 1 Circuit High Input P0330Knock Sensor 2 Circuit Malfunction P0331Knock Sensor 2 Circuit Range/Performance P0332Knock Sensor 2 Circuit Low Input P0333Knock Sensor 2 Circuit High Input

Latest Atlas chapters

P0175System Too Rich (Bank 2)P0202Injector Circuit/Open - Cylinder 2 P0203Injector Circuit/Open - Cylinder 3 P0204Injector Circuit/Open - Cylinder 4 P0205Injector Circuit/Open - Cylinder 5 P0206Injector Circuit/Open - Cylinder 6 P0207Injector Circuit/Open - Cylinder 7 P0208Injector Circuit/Open - Cylinder 8 P0308Cylinder 8 Misfire Detected P0405Exhaust Gas Recirculation Sensor A Circuit Low P0406Exhaust Gas Recirculation Sensor A Circuit High P0407Exhaust Gas Recirculation Sensor B Circuit Low

Atlas Academy

Learn the systems behind the codes

Use the Academy to understand system operation before following a diagnostic workflow.

Open Atlas Academy