Section 11 (MULTIPORT Fuel Injection (MFI) (3.8L) - Diagnostic Trouble Code Procedures - DTC P0300 Through DTC P0507)

• DTC P0300: Random/Multiple Cylinder Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0301: Cylinder 1 Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0302: Cylinder 2 Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0303: Cylinder 3 Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0304: Cylinder 4 Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0305: Cylinder 5 Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0306: Cylinder 6 Misfire Detected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion (change in the angular acceleration of the crankshaft is used for misfire detection)
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0325: Knock Sensor Circuit
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0335: Crankshaft Position Sensor Circuit
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC SET CONDITIONS
    • Logic Flow Chart
    • Check Condition
    • Judgement Criterion
  • DTC SET CONDITIONS
    • Logic Flow Chart
    • Check Condition
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0340: Camshaft Position Sensor Circuit
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC SET CONDITIONS
    • Logic Flow Chart
  • DTC Set Conditions
    • Check Condition
    • Judgement Criterion
  • DTC SET CONDITIONS
    • Logic Flow Chart
    • Check Condition
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criteria
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0403: Exhaust Gas Recirculation Control Circuit
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0421: Warm Up Catalyst Efficiency Below Threshold (bank 1)
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criteria
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0431: Warm Up Catalyst Efficiency Below Threshold (bank 2)
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criteria
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0441: Evaporative Emission Control System Incorrect Purge Flow
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0442: Evaporative Emission Control System Leak Detected (small leak)
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
  • DTC Set Conditions
    • Notes
    • Check Conditions A: At Start up
    • Check Conditions B: For Test to Run
    • Check Conditions C: For Test to Stop
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Diagnosis
• DTC P0443: Evaporative Emission Control System Purge Control Valve Circuit
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criteria
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0446: Evaporative Emission Control System Vent Control Circuit
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criteria
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0450: Evaporative Emission Control System Pressure Sensor Malfunction
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
    • Rationality - High/Low
  • DTC Set Conditions
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Overview Of Troubleshooting
  • Diagnosis
• DTC P0451: Evaporative Emission Control System Pressure Sensor Range/Performance
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
    • Rationality - Noise
  • DTC Set Conditions
    • Check Conditions
    • Judgement Criteria
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Overview Of Troubleshooting
  • Diagnosis
• DTC P0452: Evaporative Emission Control System Pressure Sensor Low Input
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
    • Range Check - Min./Max
  • DTC Set Conditions
    • Check Condition
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Overview Of Troubleshooting
  • Diagnosis
• DTC P0453: Evaporative Emission Control System Pressure Sensor High Input
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
    • Range Check - Min./Max
  • DTC Set Conditions
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Overview Of Troubleshooting
  • Diagnosis
• DTC P0455: Evaporative Emission Control System Leak Detected (gross leak)
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
    • 0.04 in, 0.02 in GROSS LEAK MONITOR
  • DTC Set Conditions
    • Check Conditions A: At Start up
    • Check Conditions B: For Test to Run
    • Check Conditions C: For Test to Stop
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Diagnosis
• DTC P0456: Evaporative Emission Control System Leak Detected (very small leak)
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • Monitor Execution Conditions (Other Monitor And Sensor)
  • LOGIC FLOW CHARTS (Monitor Sequence)
    • 0.04 in, 0.02 in GROSS LEAK MONITOR
  • DTC Set Conditions
    • Check Conditions A: At Start up
    • Check Conditions B: For Test to Run
    • Check Conditions C: For Test to Stop
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • Troubleshooting Hints (The Most Likely Causes For This Code To Be Set Are:)
  • Diagnosis
• DTC P0461: Fuel Level Sensor (main) Circuit Range/Performance
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Condition, Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0462: Fuel Level Sensor Circuit Low Input
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0463: Fuel Level Sensor Circuit High Input
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0500: Vehicle Speed Sensor Malfunction
  • Notes
  • Circuit Operation
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC SET CONDITIONS (Entry Conditions and Malfunction Thresholds)
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0506: Idle Control Sytem RPM Lower Than Expected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis
• DTC P0507: Idle Control Sytem RPM Higher Than Expected
  • Notes
  • Technical Description
  • Descriptions Of Monitor Methods
  • Monitor Execution
  • MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
  • DTC Set Conditions
    • Logic Flow Chart
    • Check Conditions
    • Judgement Criterion
  • OBD-II Drive Cycle Pattern
  • TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
  • Diagnosis