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Diagnostic Trouble Code (DTC) Reference Chart

DIAGNOSTIC TROUBLE CODE (DTC) REFERENCE CHART

Diagnostic Trouble Code (DTC) Definition (1) KOEO (1) KOER (1) Continuous
P0102 Mass Air Flow (MAF) Circuit Low Input ---  DC6  DC6
P0103 Mass Air Flow (MAF) Circuit High Input  DC20  DC20  DC20
P0112 Intake Air Temperature (IAT) Circuit Low Input  DA20  DA20  DA90
P0113 Intake Air Temperature (IAT) Circuit High Input  DA10  DA10  DA90
P0117 Engine Coolant Temperature (ECT) Circuit Low Input  DA20  DA20  DA90
P0118 Engine Coolant Temperature (ECT) Circuit High Input  DA10  DA10  DA90
P0121 Throttle Position (TP) Circuit Performance Problem ---  DH22  DH22
P0122 Throttle Position (TP) Circuit Low Input  DH11  DH11  DH11
P0123 Throttle Position (TP) Circuit High Input  DH8  DH8  DH8
P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control --- ---  DA100
P0131 HO2S Sensor Circuit Out of Range Low Voltage (HO2S-11) --- ---  H27
P0133 HO2S Sensor Circuit Slow Response (HO2S-11) --- ---  H20
P0135 HO2S Sensor Circuit Malfunction (HO2S-11)  H30  H30  H30
P0136 HO2S Sensor Circuit Malfunction (HO2S-12) --- ---  H80
P0141 HO2S Sensor Circuit Malfunction (HO2S-125)  H30  H30  H30
P0151 HO2S Sensor Circuit Out of Range Low Voltage (HO2S-21) --- ---  H27
P0153 HO2S Sensor Circuit Slow Response (HO2S-21) --- ---  H20
P0155 HO2S Sensor Circuit Malfunction (HO2S-21)  H30  H30  H30
P0156 HO2S Sensor Circuit Malfunction (HO2S-22) --- ---  H80
P0161 HO2S Sensor Circuit Malfunction (HO2S-22)  H30  H30  H30
P0171 System too Lean (Bank 1) --- ---  H41
P0172 System too Rich (Bank 1) --- ---  H41
P0174 System too Lean (Bank 2) --- ---  H41
P0175 System too Rich (Bank 2) --- ---  H41
P0190 Fuel Rail Pressure Sensor Circuit Malfunction (FRP)  DD10  DD10  DD14
P0191 Fuel Rail Pressure Sensor Circuit Performance (FRP)  DD15  DD15  DD15
P0192 Fuel Rail Pressure Sensor Circuit Low Input (FRP)  DD1  DD1  DD14
P0193 Fuel Rail Pressure Sensor Circuit High Input (FRP)  DD7  DD7  DD14
P0230 Fuel Pump Primary Circuit Malfunction  KA1  KA1  KA40
P0231 Fuel Pump Secondary Circuit Low  KA20  KA20  KA35
P0232 Fuel Pump Secondary Circuit High  KA10  KA10  KA30
P0300 Random Misfire ---  HD1  HD1
P0301 Misfire Detection Monitor ---  HD1  HD1
P0302 Misfire Detection Monitor ---  HD1  HD1
P0303 Misfire Detection Monitor ---  HD1  HD1
P0304 Misfire Detection Monitor ---  HD1  HD1
P0305 Misfire Detection Monitor ---  HD1  HD1
P0306 Misfire Detection Monitor ---  HD1  HD1
P0307 Misfire Detection Monitor ---  HD1  HD1
P0308 Misfire Detection Monitor ---  HD1  HD1
P0309 Misfire Detection Monitor ---  HD1  HD1
P0310 Misfire Detection Monitor ---  HD1  HD1
P0320 Ignition Engine Speed Input Circuit Malfunction NC1  --- NC1 
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1)  DG1  DG1  DG1
P0330 Knock Sensor 2 Circuit Malfunction (Bank 2) ---  DG15  DG15
P0331 Knock Sensor 2 Circuit Range/performance (Bank 2) ---  DG15  DG15
P0340 Camshaft Position (CMP) Sensor Circuit Malfunction ---  DR1  DR1
P0350 Ignition Coil (Undetermined) Primary/ Secondary Circuit Malfunction --- ---  JB1
P0351 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JE4
P0352 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JE4
P0353 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JE3
P0355 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JF2
P0356 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JF2
P0357 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JF2
P0358 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JF2
P0359 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JF2
P0360 Ignition Coil A through J Primary/ Secondary Circuit Malfunction --- ---  JF2
P0401 EGR Flow Insufficient Detected --- ---  HE70
P0402 EGR Flow Excessive Detected ---  HE20  HE20
P0411 (Electric Pump) Secondary Air Injection (AIR) System Upstream Flow  HM7  HM7  HM7
P0411 (Mechanical Pump) Secondary Air Injection (AIR) System Upstream Flow  HM40  HM40  HM40
P0412 Secondary Air Injection System (AIR) Circuit Malfunction  HM1  HM1  HM1
P0413 Voltage Output For Secondary Air Injection (AIR) Solenoid(s) Did Not Change When Activated  HM75  HM75  HM75
P0414 Voltage Output For Secondary Air Injection (AIR) Solenoid(s) Did Not Change When Activated  HM75  HM75  HM75
P0416 Voltage Output For Secondary Air Injection (AIR) Solenoid(s) Did Not Change When Activated  HM75  HM75  HM75
P0417 Voltage Output For Secondary Air Injection (AIR) Solenoid(s) Did Not Change When Activated  HM75  HM75  HM75
P0420 Catalyst System Efficiency Below Threshold (Bank 1) --- --- HF1 
P0430 Catalyst System Efficiency Below Threshold (Bank 2) --- --- HF1 
P0442 EVAP Control System Leak Detected (Small Leak) --- ---  HX1
P0443 EVAP Control System Canister Purge Valve Circuit Malfunction  HX11  HX11  HX10
P0452 FTP Sensor Circuit Low Voltage Detected  HX26  HX26  HX26
P0453 FTP Sensor Circuit High Voltage Detected  HX33  HX33  HX33
P0455 EVAP Control System Leak Detected (No Purge Flow or Large Leak) --- ---  HX44
P0460 Fuel Level Sensor Circuit Malfunction ---  HX76  HX76
P0500 Vehicle Speed Sensor (VSS) Malfunction --- ---  DP5
P0501 Vehicle Speed Sensor (VSS) Range/ Performance --- ---  DP1
P0503 Vehicle Speed Sensor (VSS) Intermittent --- ---  DP20
P0505 Idle Air Control System Malfunction ---  KE2 ---
P0552 Power Steering Pressure (PSP) Sensor Circuit Malfunction ---  DT1  DT1
P0553 Power Steering Pressure (PSP) Sensor Circuit Malfunction ---  DT1  DT1
P0602 Control Module Programming Error Replace PCM --- ---
P0603 Powertrain Control Module KAM Test Error  QB1 --- ---
P0605 PCM Read Only Memory (ROM) Error Replace PCM Replace PCM Replace PCM
P0703 Brake Switch Circuit Input Malfunction  FD2  FD1  FD3
P0704 Clutch Pedal Position Switch Malfunction  TA5 ---  TA5
P0705 --- (2) --- ---
P0707 --- --- --- (2)
P0708 --- --- --- (2)
P0712 --- (2) (2) (2)
P0713 --- (2) (2) (2)
P0715 --- --- (2) (2)
P0720 Insufficient Input From Output Shaft Speed Sensor --- --- (2)
P0721 Noise Interference On Output Shaft Speed Sensor Signal --- --- (2)
P0731 --- --- --- (2)
P0732 --- --- --- (2)
P0733 --- --- --- (2)
P0734 --- --- --- (2)
P0735 --- --- --- (2)
P0736 --- --- --- (2)
P0741 --- --- --- (2)
P0743 --- (2) (2) (2)
P0746 --- --- --- (2)
P0750 --- (2) (2) (2)
P0751 --- --- --- (2)
P0755 --- (2) (2) (2)
P0756 --- --- --- (2)
P0760 --- (2) (2) (2)
P0761 --- --- --- (2)
P0765 --- --- --- (2)
P0781 --- --- --- (2)
P0782 --- --- --- (2)
P0783 --- --- --- (2)
P0784 --- --- --- (2)
P1000 Monitor Testing Not Complete (3) (3)  QC1
P1001 KOER Not Able To Complete, KOER Aborted ---  QA1 ---
P1100 Mass Air Flow (MAF) Sensor Intermittent --- ---  DC3
P1101 Mass Air Flow (MAF) Sensor Out of Self-Test Range  DC2  DC1 ---
P1112 Intake Air Temperature (IAT) Sensor Intermittent --- ---  DA90
P1116 Engine Coolant Temperature (ECT) Sensor Out of Self-Test Range  DA1  DA1 ---
P1117 Engine Coolant Temperature (ECT) Sensor Intermittent --- ---  DA90
P1120 Throttle Position (TP) Sensor Out of Range Low (RATCH too Low)  DH3  DH3  DH3
P1121 Throttle Position (TP) Sensor Inconsistent With MAF Sensor --- ---  DH15
P1124 Throttle Position (TP) Sensor Out of Self-Test Range  DH1  DH1 ---
P1125 Throttle Position (TP) Sensor Intermittent --- ---  DH20
P1127 Exhaust Not Warm Enough, Downstream Sensor Not Tested ---  H100 ---
P1128 Upstream Oxygen Sensors Swapped From Bank to Bank (HO2S-11-21) ---  H110 ---
P1129 Downstream Oxygen Sensors Swapped From Bank to Bank (HO2S-12-22) ---  H110 ---
P1130 Lack of HO2S-11 Switch, Fuel Trim at Limit --- ---  H40
P1131 Lack of HO2S-11 Switch, Sensor Indicates Lean ---  H40  H40
P1132 Lack of HO2S-11 Switch, Sensor Indicates Rich ---  H40  H40
P1137 Lack of HO2S-12 Switch, Sensor Indicates Lean ---  H80 ---
P1138 Lack of HO2S-12 Switch, Sensor Indicates Rich ---  H80 ---
P1150 Lack of HO2S-21 Switch, Fuel Trim at Limit --- ---  H40
P1151 Lack of HO2S-21 Switch, Sensor Indicates Lean  H40  H40  H40
P1152 Lack of HO2S-21 Switch, Sensor Indicates Rich ---  H40  H40
P1157 Lack of HO2S-22 Switch, Sensor Indicates Lean ---  H80 ---
P1158 Lack of HO2S-22 Switch, Sensor Indicates Rich ---  H80 ---
P1232 Low Speed Fuel Pump Primary Circuit Malfunction  KA45  KA45  KA60
P1260 Theft Detected - Vehicle Immobilized --- ---  QD1
P1270 Engine RPM/Vehicle Speed Limiter --- --- ND1 
P1285 Cylinder Head Over Temperature Sensed --- ---  DL30
P1288 Cylinder Head Temperature (CHT) Sensor Circuit Out of Self-Test Range  DL1  DL1 ---
P1289 Cylinder Head Temperature (CHT) Sensor Circuit High Input (PCM STRATEGIES UP TO AND INCLUDING 1998)  DL5  DL5  DL90
P1290 Cylinder Head Temperature (CHT) Sensor Circuit Low Input (PCM STRATEGIES UP TO AND INCLUDING 1998)  DL5  DL5  DL90
P1299 Cylinder Head Over Temperature Protection Active --- ---  DL100
P1309 Misfire Monitor Disabled --- ---  HD40
P1380 Variable Cam Timing Solenoid A Circuit Malfunction  HK1  HK1  HK15
P1381 Variable Cam Timing Over-advanced (Bank 1)  HK11  HK11  HK16
P1383 Variable Cam Timing Over-retarded (Bank 1)  HK11  HK11  HK17
P1390 Octane Adjust (OCTADJ)  FG1 --- ---
P1400 DPF EGR Sensor Circuit Low Voltage Detected  HE1  HE1  HE1
P1401 DPF EGR Sensor Circuit High Voltage Detected  HE10  HE10  HE10
P1405 DPF EGR Sensor Upstream Hose Off or Plugged --- ---  HE50
P1406 DPF EGR Sensor Downstream Hose Off or Plugged --- ---  HE60
P1408 EGR Flow Out of Self-Test Range ---  HE71 ---
P1409 EGR Vacuum Regulator Solenoid Circuit Malfunction  HE110  HE110  HE120
P1411 Secondary Air Injection (AIR) System Downstream Flow  HM40  HM40  HM40
P1413 Secondary Air Injection System Monitor Circuit Low  HM17  HM17  HM17
P1414 Secondary Air Injection System Monitor Circuit High  HM25  HM25  HM25
P1450 Unable to Bleed Up Fuel Tank Vacuum --- ---  HX18
P1451 EVAP Control System Canister Vent Solenoid Circuit Malfunction  HX65  HX65  HX65
P1460 Wide Open Throttle A/C Cutout Primary Circuit Malfunction  KM1  KM1  KM30
P1461 Air Conditioning Pressure Sensor (ACP) Sensor High Voltage Detected  DS1  DS1  DS1
P1462 Air Conditioning Pressure Sensor (ACP) Sensor Low Voltage Detected  DS10  DS10  DS10
P1463 Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change --- ---  DS20
P1464 A/C Demand Out Of Self-Test Range  KM19  KM19 ---
P1474 Low Fan Control Primary Circuit Failure  KF1  KF1  KF10
P1479 High Fan Control Primary Circuit Failure  KF1  KF1  KF20
P1500 Vehicle Speed Sensor (VSS) Intermittent --- ---  DP25
P1501 Vehicle Speed Sensor (VSS) Out of Self Test Range ---  DP15 ---
P1504 Idle Air Control (IAC) Circuit Malfunction  KE2  KE2  KE2
P1505 Idle Air Control (IAC) System Has Reached Idle Airtrim Limit  KE25  KE25  KE25
P1506 Idle Air Control (IAC) Overspeed Error ---  KE20  KE20
P1507 Idle Air Control (IAC) Underspeed Error ---  KE2  KE2
P1516 Intake Manifold Runner Control Input Error (Bank 1)  HU15 ---  HU15
P1517 Intake Manifold Runner Control Input Error (Bank 2)  HU15 ---  HU15
P1518 Intake Manifold Runner Control Malfunction (Stuck Open)  HU15  HU15  HU15
P1519 Intake Manifold Runner Control Malfunction (Stuck Closed)  HU15  HU15  HU15
P1549 Intake Manifold Communication Control Circuit Malfunction  HU65 ---  HU65
P1550 Power Steering Pressure (PSP) Sensor Malfunction ---  DT1  DT1
P1605 Keep Alive Memory Test Failure  QB1 --- ---
P1650 Power Steering Pressure (PSP) Switch Malfunction  FF1  FF1 ---
P1651 Power Steering Pressure (PSP) Switch Signal Malfunction ---  FF1  FF1
P1700 --- --- --- (2)
P1701 --- --- --- (2)
P1702 --- (2) (2) (2)
P1703 Brake Switch Out of Self-Test Range  FD2  FD1 ---
P1704 --- (2) --- (2)
P1705 (M/T) Transmission Range Sensor Out of Self-Test Range ---  TA5 ---
P1705 (A/T) --- (2) (2) ---
P1709 (M/T) Park/Neutral Position Switch Out of Self-Test Range  TA5 ---  TA5
P1709 (A/T) --- (2) --- (2)
P1710 --- --- --- (2)
P1711 --- (2) (2) ---
P1713 --- --- --- (2)
P1714 --- --- --- (2)
P1715 --- --- --- (2)
P1716 --- --- --- (2)
P1717 --- --- --- (2)
P1718 --- --- --- (2)
P1719 --- --- --- (2)
P1728 --- --- --- (2)
P1740 --- --- --- (2)
P1741 --- --- --- (2)
P1742 --- --- --- (2)
P1743 --- --- --- (2)
P1744 --- --- --- (2)
P1745 --- (2) --- (2)
P1746 --- (2) --- (2)
P1747 --- (2) --- (2)
P1749 --- --- --- (2)
P1751 --- --- --- (2)
P1754 --- (2) --- (2)
P1756 --- --- --- (2)
P1760 --- (2) (2) (2)
P1761 --- --- --- (2)
P1762 --- --- --- (2)
P1767 --- (2) --- (2)
P1780 Transmission Control Switch Out of Self-Test Range ---  TB1 ---
P1783 --- --- --- (2)
P1784 --- --- --- (2)
P1785 --- --- --- (2)
P1786 --- --- --- (2)
P1787 --- --- --- (2)
P1788 --- (2) --- (2)
P1789 --- (2) --- (2)
P1900 Output Shaft Speed Sensor Circuit Intermittent Failure --- --- (2)
P1901 --- --- (2) (2)
U1020 --- --- --- (4)
U1039 --- --- --- (5)
U1051 --- --- --- (5)
U1135 --- --- --- (6)
U1451 --- --- --- (7)
U1850 --- --- --- (8)
UXXXX --- --- --- (9)
(1) DTC Condition & Circuit Test/Step
(2) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS section.
(3) DTC P1000 is ignored in KOEO ON-DEMAND SELF-TEST and KOER ON-DEMAND SELF-TEST. Disregard DTC P1000 and continue as directed.
(4) Diagnose DTC U1020, SCP invalid or missing data for A/C clutch. See appropriate article in the AIR CONDITIONING & HEAT section for test procedures.
(5) Diagnose DTC U1041, SCP invalid or missing vehicle speed message or DTC U1051, SCP invalid or missing data for brakes. See appropriate ANTI-LOCK BRAKE article in the ACCESSORIES & ELECTRICAL section for test procedures.
(6) Diagnose DTC U1135, SCP invalid or missing data from ignition switch/starter steering column ignition lighting control module. See appropriate STEERING COLUMN article in the ACCESSORIES & ELECTRICAL section for test procedures.
(7) Diagnose DTC U1451, SCP invalid or missing data from anti-theft module. See appropriate ANTI-THEFT article in the ACCESSORIES & ELECTRICAL section for test procedures.
(8) Diagnose DTC U1850, SCP invalid or missing data from fuel system. See appropriate article in WIRING DIAGRAMS section.
(9) For "U" DTCs received during self-test of another module, go to MULTIPLEX COMMUNICATION NETWORK CONCERN under SYMPTOMS in TESTS W/O CODES - EEC-V article.
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