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Home >> GMC >> 2001 >> Jimmy 4D Utility, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 4.3L >> Diagnostic Trouble Code Definitions
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Diagnostic Trouble Code Definitions

NOTE: DTCs are retrieved using a Tech 2 scan tool, or other OBD-II compatible scan tool connected to OBD-II 16-pin Data Link Connector (DLC).
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Definition (1) Type
P0101  Mass Airflow System Performance B
P0102  Mass Airflow Sensor Circuit - Low Frequency B
P0103  Mass Airflow Sensor Circuit - High Frequency B
P0106  Manifold Absolute Pressure System Performance B
P0107  Manifold Absolute Pressure Sensor Circuit - Low Voltage B
P0108  Manifold Absolute Pressure Sensor Circuit - High Voltage B
P0112  Intake Air Temperature Sensor Circuit - Low Voltage B
P0113  Intake Air Temperature Sensor Circuit - High Voltage B
P0117  Engine Coolant Temperature Sensor Circuit - Low Voltage B
P0118  Engine Coolant Temperature Sensor Circuit - High Voltage B
P0121  TP Sensor Performance B
P0122  TP Sensor Circuit - Low Voltage B
P0123  TP Sensor Circuit - High Voltage B
P0125  Engine Coolant Temperature Excessive Time To Enter Closed Loop Fuel Control B
P0128  Engine Coolant Temperature Exceeds Length Of Time To Reach Preset Temperature B
P0131 OR P0151  HO2S Voltage Low ("L" & "M" Series) B
P0131 OR P0151  HO2S Voltage Low ("S" & "T" Series) B
P0132 OR P0152  HO2S Voltage High ("L" & "M" Series) B
P0132 OR P0152  HO2S Voltage High ("S" & "T" Series)
 		 B
P0133 OR P0153  HO2S - Slow Response ("L" & "M" Series) B
P0133 OR P0153  HO2S - Slow Response ("S" & "T" Series) C
P0134 OR P0154  HO2S Voltage Steady Within Bias Range ("L" & "M" Series) B
P0134 OR P0154  HO2S Voltage Steady Within Bias Range ("S" & "T" Series) B
P0135  HO2S Remains Within 150 Millivolts Of Start-Up Voltage ("L" & "M" Series) B
P0135  HO2S Remains Within 150 Millivolts Of Start-Up Voltage ("S" & "T" Series) B
P0137  HO2S Voltage Remains Low ("L" & "M" Series) B
P0137  HO2S Voltage Remains Low ("S" & "T" Series) C
P0138  HO2S Voltage Remains High ("L" & "M" Series) B
P0138  HO2S Voltage Remains High ("S" & "T" Series) B
P0140  HO2S Voltage Is Within Bias Range ("L" & "M" Series) B
P0140  HO2S Voltage Is Within Bias Range ("S" & "T" Series) B
P0141  HO2S Remains Within 150 Millivolts Of Start-Up Voltage ("L" & "M" Series) B
P0141  HO2S Remains Within 150 Millivolts Of Start-Up Voltage ("S" & "T" Series) B
P0155  HO2S Remains Within 150 Millivolts Of Start-Up Voltage ("L" & "M" Series) B
P0155  HO2S Remains Within 150 Millivolts Of Start-Up Voltage ("S" & "T" Series) B
P0171 OR P0174  Fuel Trim System Lean B
P0172 OR P0175  Fuel Trim System Rich B
P0200  Incorrect Voltage For The Commanded State Of Injector Driver B
P0218 (2) C
P0230  Incorrect Voltage On Fuel Pump Relay Control Circuit B
P0300  Engine Misfire Detected B
P0325  Knock Sensor Module Circuit B
P0327  Knock Sensor Circuit B
P0335  Crankshaft Position Sensor Signal Not Detected B
P0336  Crankshaft Position Sensor Signal Out-Of-Range B
P0341  Camshaft Position Sensor Signal Not Detected While Engine Is Running B
P0351  Ignition Control Voltage Not Within Specified Range B
P0401  EGR System - Insufficient Flow A
P0404  EGR Position Sensor & Desired EGR Position Is More Than 10 Percent B
P0405  EGR Position Sensor Signal Voltage Excessively Low B
P0410  Air Injection System ("S" & "T" Series) B
P0418  Secondary Air Injection Pump & Air Solenoid Circuit ("S" & "T" Series) B
P0420 OR P0430  Three-Way Catalytic Converter - Low Efficiency A
P0440  Evaporative Emission System ("L" & "M" Series) A
P0442  Evaporative System Fails To Hold A Predetermined Level Of Vacuum A
P0443  Evaporative System - Incorrect Voltage For The Commanded State Of EVAP Canister Purge Solenoid Driver B
P0446  Evaporative System - Vacuum Decay Rate Is More Than A Predetermined Value A
P0449  Evaporative System - Incorrect Voltage For The Commanded State Of EVAP Canister Vent Solenoid Driver B
P0452  Fuel Tank Pressure Sensor Circuit - Low Voltage B
P0453  Fuel Tank Pressure Sensor Circuit - High Voltage B
P0500  Vehicle Speed Sensor (M/T Only) B
P0502 (2) B
P0503 (2) B
P0506  Idle Speed - Low B
P0507  Idle Speed - High B
P0562 (3) C
P0563 (3) C
P0601-P0607, P1600, P1621, P1627, P1680, P1681 OR P1683  Control Module EEPROM A
P0608 (4) A
P0650  MIL Fault Detection Circuit Senses Unexpected Voltage B
P0654 (4) C
P0706 (2) C
P0711 (2) C
P0712 (2) C
P0713 (2) C
P0719  PCM Detects Open Brake Switch Circuit During Accelerations C
P0724  PCM Detects Closed Brake Switch Circuit During Decelerations C
P0740 (2) B
P0741 (2) B
P0742 (2) B
P0748 (2) C
P0751 (2) B
P0752 (2) B
P0753 (2) B
P0756 (2) A
P0757 (2) A
P0758 (2) A
P0785 (2) B
P1111  IAT Sensor Circuit Intermittent High Voltage C
P1112  IAT Sensor Circuit Intermittent Low Voltage C
P1114  ECT Sensor Circuit Intermittent Low Voltage C
P1115  ECT Sensor Circuit Intermittent High Voltage C
P1121  TP Sensor Circuit Intermittent & Excessively High Signal Voltage C
P1122  TP Sensor Circuit Intermittent Low Voltage C
P1133 OR P1153  HO2S - Insufficient Switching ("L" & "M" Series) B
P1133 OR P1153  HO2S - Insufficient Switching ("S" & "T" Series) B
P1134 OR P1154  HO2S Transition Time Ratio Not Within Calibrated Range ("L" & "M" Series) B
P1134 OR P1154  HO2S Transition Time Ratio Not Within Calibrated Range ("S" & "T" Series) B
P1258  Engine Overtemperature Condition A
P1336  Crankshaft Position Sensor System Variation Not Learned A
P1345  Crankshaft/Camshaft Position Sensor Correlation A
P1380  Misfire Detected - Rough Road Data Not Available C
P1381  Serial Data Malfunction Exists - Preventing PCM From Receiving Rough Road Detection Data C
P1404  EGR Valve Is Still Open When PCM Is Commanding EGR Valve Closed A
P1415 OR P1416  Only One HO2S Sensor Voltage Responded During Test ("S" & "T" Series) B
P1441  Evaporative System - Vacuum Is Greater Than Calibrated Value ("L" & "M" Series) B
P1441  Evaporative System - Vacuum Is Greater Than Calibrated Value ("S" & "T" Series) B
P1635  5-Volt Reference 1 Circuit Out Of Tolerance B
P1637 (3) C
P1638 (3) C
P1639  5-Volt Reference 2 Circuit Out Of Tolerance B
P1810 (2) B
P1860 (2) B
P1870 (2) B
P1875 (2) B
(1) See CODE TYPES  under ON-BOARD DIAGNOSTICS in SELF-DIAGNOSTIC SYSTEM.
(2) See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS in appropriate lemon-25® TRANSMISSION SERVICE & REPAIR manual.
(3) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS in appropriate lemon-25® manual.
(4) See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT in appropriate lemon-25® manual.
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