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Diagnostic Trouble Code Definitions

If a DTC appears with an "x" in the numerator (example DTC P071x), "x" denotes any number between 0-9. If a "P" series DTC appears that is not listed in DIAGNOSTIC TROUBLE CODE DEFINITIONS  table, diagnose by symptom in TROUBLE SHOOTING - NO CODES article. On some models, PCM is capable of storing some body DTCs. If any "B", "C" or "U" series DTCs are retrieved (example DTC B1213, C1702 or U2195) that are not list in DIAGNOSTIC TROUBLE CODE DEFINITIONS table, go to appropriate MODULE COMMUNICATIONS NETWORK article in ACCESSORIES & EQUIPMENT to determine test to perform.

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description
P0102  Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor - Input Voltage Low
P0103  Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor - Input Voltage High
P0112  Mass Airflow/Intake Air Temperature (MAF/IAT) - Input Low
P0113  Mass Airflow/Intake Air Temperature (MAF/IAT) - Input High
P0116 (1) Engine Coolant temperature (ECT) Or Cylinder Head Temperature (CHT) Sensor - Malfunction
P0117 (1) Engine Coolant temperature (ECT) Or Cylinder Head Temperature (CHT) Sensor - Input Voltage Low
P0118 (1) Engine Coolant temperature (ECT) Or Cylinder Head Temperature (CHT) Sensor - Input Voltage High
P0121  Throttle Position (TP) Sensor - Malfunction
P0122  Throttle Position (TP) Sensor - Malfunction
P0123  Throttle Position (TP) Sensor - Malfunction
P0125 (1) Engine Coolant Temperature (ECT) Or Cylinder Head Temperature (CHT) Sensor
P0131  HO2S-11 - Generates Negative Voltage
P0133  Upstream HO2S-11
P0135  HO2S Heater-11 - Front Bank 1
P0136  HO2S-12 - Rear Bank 1
P0141  HO2S Heater-12 - Rear Bank 1
P0151  HO2S-21 - Front Bank 2
P0153  Upstream HO2S-21 - Bank 2
P0155  HO2S Heater-21 - Front Bank 2
P0156  HO2S-22 - Rear Bank 2
P0161  HO2S Heater-22 - Rear Bank 2
P0171  Adaptive Fuel Control - Too Lean
P0172  Adaptive Fuel Control - Too Rich
P0174  Adaptive Fuel Control - Too Lean
P0175  Adaptive Fuel Control - Too Rich
P0201  Fuel Injector No. 1 - Malfunction
P0202  Fuel Injector No. 2 - Malfunction
P0203  Fuel Injector No. 3 - Malfunction
P0204  Fuel Injector No. 4 - Malfunction
P0205  Fuel Injector No. 5 - Malfunction
P0206  Fuel Injector No. 6 - Malfunction
P0230  Fuel Pump Primary Or Secondary Circuit
P0231  Fuel Pump Primary Or Secondary Circuit
P0232  Fuel Pump Primary Or Secondary Circuit
P0300  Multiple Misfire Detection - Misfire Detection Monitor
P0301  Cylinder No. 1 Misfire - Misfire Detection Monitor
P0302  Cylinder No. 2 Misfire - Misfire Detection Monitor
P0303  Cylinder No. 3 Misfire - Misfire Detection Monitor
P0304  Cylinder No. 4 Misfire - Misfire Detection Monitor
P0305  Cylinder No. 5 Misfire - Misfire Detection Monitor
P0306  Cylinder No. 6 Misfire - Misfire Detection Monitor
P0320  Crankshaft Position (CKP) Sensor - Malfunction
P0325  Knock Sensor (KS) - Malfunction
P0326  Knock Sensor (KS) - Malfunction
P0340  Camshaft Position (CMP) Sensor - Malfunction
P0350  Ignition Coil Primary Circuit - Malfunction
P0351  Integrated Ignition Coil A (Cyl. 1) - Primary Circuit Malfunction
P0352  Integrated Ignition Coil B (Cyl. 2) - Primary Circuit Malfunction
P0353  Integrated Ignition Coil C (Cyl. 3) - Primary Circuit Malfunction
P0354  Integrated Ignition Coil D (Cyl. 4) - Primary Circuit Malfunction
P0355  Integrated Ignition Coil E (Cyl. 5) - Primary Circuit Malfunction
P0356  Integrated Ignition Coil F (Cyl. 6) - Primary Circuit Malfunction
P0401  EGR System - Malfunction
P0402  EGR System - Malfunction
P0420  Catalyst Efficiency Monitor (Bank 1) - Malfunction
P0430  Catalyst Efficiency Monitor (Bank 2) - Malfunction
P0442  EVAP Monitor & System - Malfunction
P0443  EVAP Purge Solenoid - Canister Purge Solenoid - Malfunction
P0451  EVAP System - Malfunction
P0452  Fuel Tank Pressure (FTP) Sensor - Malfunction
P0453  Fuel Tank Pressure (FTP) Sensor - Malfunction
P0455  EVAP System - Malfunction
P0456  EVAP System - Malfunction
P0457  EVAP System - Malfunction
P0460 (2) Fuel Level Sensor Circuit - EVAP System Malfunction
P0461  EVAP System - Incorrect Fuel Gauge Indication
P0500 (3) Vehicle Speed Sensor (VSS) Signal - Malfunction
P0501 (3) Vehicle Speed Sensor (VSS) Signal - Malfunction
P0503 (3) Vehicle Speed Sensor (VSS) - Intermittent Signal
P0505  Idle Air Control (IAC) System - Malfunction
P0602  PCM - Control Module Programming Error
P0603  PCM - Keep Alive Power (KAPWR) Circuit - Malfunction
P0703  Brake Pedal Position (BPP) Switch - Malfunction
P0704  Clutch Pedal Position (CPP) Switch - Malfunction
P0705 (3) Transaxle Range (TR) Sensor
P0707 (3) Transaxle Range (TR) Sensor
P0708 (3) Transaxle Range (TR) Sensor
P0712 (3) Transaxle Fluid Temperature (TFT) Sensor
P0713 (3) Transaxle Fluid Temperature (TFT) Sensor
P0715 (3) Turbine Shaft & Output Shaft Speed Sensor (TSS Or OSS) - Loss Of TSS Signal
P0717 (3) Turbine Shaft & Output Shaft Speed Sensor (TSS Or OSS) - No TSS Signal
P0718 (3) Turbine Shaft & Output Shaft Speed Sensor (TSS Or OSS) - Erratic TSS Signal
P0720 (3) Turbine Shaft & Output Shaft Speed Sensor (TSS Or OSS) - Loss Of OSS Signal
P0721 (3) Turbine Shaft & Output Shaft Speed Sensor (TSS Or OSS) - Erratic Of OSS Signal
P0722 (3) Turbine Shaft & Output Shaft Speed Sensor (TSS Or OSS) - Intermittent OSS Signal
P0731 (3) Shift Solenoid - First Gear Error
P0732 (3) Shift Solenoid - Second Gear Error
P0733 (3) Shift Solenoid - Third Gear Error
P0734 (3) Shift Solenoid - Fourth Gear Error
P0740 (3) Torque Converter Clutch Solenoid - Malfunction
P0741 (3) Torque Converter Clutch Solenoid - Excessive Slip
P0743 (3) Torque Converter Clutch Solenoid - Malfunction
P0750 (3) Shift Solenoid 1 - Circuit Malfunction
P0751 (3) Shift Solenoid 1 - Function Failure
P0753 (3) Shift Solenoids - Circuit Malfunction
P0755 (3) Shift Solenoid 2 - Circuit Malfunction
P0756 (3) Shift Solenoid 2 - Function Failure
P0758 (3) Shift Solenoids - Circuit Malfunction
P1000  OBD-II Drive Cycle - Testing Not Complete
P1001  Data Link Connector (DLC)
P1100  Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor - Out Of Specification
P1101  Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor - Out Of Specification
P1112  Intake Air Temperature (IAT) Sensor - Intermittent Signal
P1116  ECT/CHT Sensor - Signal Out Of Range
P1117  ECT/CHT Sensor - Intermittent Open Or Short
P1120  Throttle Position (TP) Sensor - Malfunction
P1121  Throttle Position (TP) Sensor - Malfunction
P1124  Throttle Position (TP) Sensor - Malfunction
P1125  Throttle Position (TP) Sensor - Malfunction
P1127  HO2S-12 Heater
P1128  HO2S Signals - 3.0L Only
P1129  HO2S Signals - 3.0L Only
P1130  Front HO2S-11 Bank 1
P1131  Upstream HO2S - Not Switching
P1132  Upstream HO2S - Not Switching
P1137  HO2S-12 (Rear)
P1138  HO2S-12 (Rear)
P1150  HO2S-21 (Front Bank 2)
P1151  HO2S-21 (Front Bank 2)
P1152  HO2S-21 (Front Bank 2)
P1157  HO2S
P1158  HO2S
P1244  Generator/Regulator System - Malfunction (2.0L Only)
P1245  Generator/Regulator System - Malfunction (2.0L Only)
P1246  Generator/Regulator System - Malfunction (2.0L Only)
P1260  Anti-Theft System
P1270  Engine RPM/Vehicle Speed Limiter
P1285  Cylinder Head Temperature (CHT) Sensor - Overheat Condition
P1288  Cylinder Head Temperature (CHT) Sensor - Out Of Range
P1289  Cylinder Head Temperature (CHT) Sensor - Circuit Malfunction
P1290  Cylinder Head Temperature (CHT) Sensor - Circuit Malfunction
P1299  Cylinder Head Temperature (CHT) Sensor - Overheat Condition
P1309  Misfire Detection Monitor - Disabled
P1400  Differential Pressure Feedback EGR (DPFEGR) Sensor - Input Voltage Low
P1401  Differential Pressure Feedback EGR (DPFEGR) Sensor - Input Voltage High
P1405  Differential Pressure Feedback EGR (DPFEGR) Sensor - Pressure Hose Off Or Plugged
P1406  Differential Pressure Feedback EGR (DPFEGR) Sensor - Pressure Hose Off Or Plugged
P1408  EGR System - Malfunction
P1409  EGR Vacuum Regulator (EVR) Solenoid - Circuit Malfunction
P1443  EVAP System - Large Leak Detected
P1450  EVAP Monitor System
P1451  Canister Vent (CV) Solenoid - Malfunction
P1460  A/C Clutch Relay - Malfunction
P1464  A/C Clutch Relay Control Signal - Malfunction
P1474  Cooling Fan - Excessive Current Draw On Low Fan Control (LFC) Circuit
P1477  Cooling Fan - Excessive Current Draw On Medium Fan Control (MFC) Circuit
P1479  Cooling Fan - Excessive Current Draw On High Fan Control (HFC) Circuit
P1500 (3) Vehicle Speed Sensor (VSS) - Intermittent Signal
P1501 (3) Vehicle Speed Sensor (VSS) - Intermittent Signal
P1502 (3) Vehicle Speed Sensor (VSS) - Signal Malfunction
P1504  Idle Air Control (IAC) Valve Assembly - Malfunction
P1506  Idle Air Control (IAC) System - Malfunction
P1507  Idle Air Control (IAC) Valve Assembly - Malfunction
P1605  PCM Keep Alive Power (KAPWR) Circuit - Malfunction
P1633  PCM Keep Alive Power (KAPWR) Circuit - Interrupted Power
P1639  PCM - Corrupted Or Not Programmed Correctly
P1641  Fuel Pump Primary Or Secondary Circuit - Delivery Module
P1650  Power Steering Pressure (PSP) Switch - Malfunction
P1651  Power Steering Pressure (PSP) Switch - Malfunction
P1702 (3) Transaxle Range (TR) Sensor - Intermittent Signal
P1703 (3) Brake Pedal Position (BPP) Switch
P1705 (3) Transaxle Range (TR) Sensor - Not In Park
P1709 (3) Clutch Pedal Position (CPP) Switch - Malfunction
P1711 (3) Transaxle Fluid Temperature (TFT) Sensor - Inoperative
P1713 (3) Transaxle Fluid Temperature (TFT) Sensor - No Change At Low Range
P1714 (3) Shift Solenoid 1 - Mechanical Malfunction
P1715 (3) Shift Solenoid 2 - Mechanical Malfunction
P1718 (3) Transmission Fluid Temperature (TFT) Sensor - No Change At High Range
P1742 (3) Torque Converter Clutch (TCC) Solenoid - Low Slip
P1744 (3) Torque Converter Clutch (TCC) Solenoid - Excessive Slip
P1746 (3) Electronic Pressure Control (EPC) Solenoid - Open Circuit
P1747 (3) Electronic Pressure Control (EPC) Solenoid - Short Circuit
P1751 (3) Shift Solenoid 1 - Malfunction
P1756 (3) Shift Solenoid 2 - Malfunction
P1760 (3) Electronic Pressure Control Solenoid - Shorted To Ground
P1780 (3) Transaxle Control Switch Or Indicator Lamp - Circuit Malfunction
P1783 (3) Transaxle - Over Temperature Condition
P1788 (3) 3-2T/CCS Solenoid - Open Circuit
P1789 (3) 3-2T/CCS Solenoid - Short Circuit
U1020 (4) Data Circuit - Missing Data For A/C Clutch
U1039 (5) Data Circuit - Missing Data For Vehicle Speed
U1041 (5) Data Circuit - Missing Data For Vehicle Speed
U1051 (5) Data Circuit - Missing Data For Brakes
U1131 (6) Data Circuit - Missing Data For Fuel System
U1451 (7) Data Circuit - Standard Corporate Protocal (SCP) Invalid Or Missing Data For Anti-Theft Module
U1262 (8) Data Circuit - SCP Communication Bus Fault
U2243 (8) Data Circuit - SCP Missing Data For Exterior Environment
UXXX Data Circuit - DTCs Received During Self-Test Of Another Module
(1) Refer to WIRING DIAGRAMS article to verify enigne is equiped with cylinder head or engine coolant temperature sensor.
(2) Information not available from manufacturer.
(3) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS
(4) See appropriate MANUAL A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(5) See appropriate article in BRAKES.
(6) See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPEMENT.
(7) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPEMENT for FORD ESCAPE.
(8) See appropriate MODULE COMMUNICATIONS NETWORK article in ACCESSORIES & EQUIPEMENT.
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