3.6L - DTCS P0401 To P0489

• DTC Troubleshooting
  • P0401 EGR System Performance
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0404 EGR Position Sensor Performance
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0405 EGR Position Sensor Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0406 EGR Position Sensor Circuit High
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P040B Exhaust Gas RECIRCULATION Temperature Sensor 1 Circuit Performance
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0420 Catalyst System Efficiency Below Threshold Bank 1
    • Theory Of Operation
    • Diagnostic Overview - Catalyst System
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0430 Catalyst System Efficiency Below Threshold Bank 2
    • Notes
    • Theory Of Operation
    • Diagnostic Overview - Catalyst System
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0440 General EVAP System Failure
    • Notes
    • Theory Of Operation
    • Component Functional Description - Evaporative System Integrity Module (ESIM) And Switch
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0441 EVAP Purge System Performance
    • Notes
    • Theory Of Operation
    • Component Functional Description - Purge Solenoid
    • Component Functional Description - Fuel Tank Pressure (Ftp) Sensor
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0443 EVAP Purge 1 Control Circuit
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0452 EVAP Pressure Switch Stuck Closed
    • Notes
    • Diagnostic Overview - ESIM Switch Stuck Closed (P0452) Diagnostic
    • Component Functional Description - Evaporative System Integrity Module (ESIM) And Switch
    • Component Functional Description - Purge Solenoid
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0455 EVAP System Large Leak
    • Theory Of Operation
    • Component Functional Description - Evaporative System Integrity Module (ESIM) And Switch
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0456 EVAP System Small Leak
    • Theory Of Operation
    • Component Functional Description - Evaporative System Integrity Module (ESIM) And Switch
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0457 EVAP System - Loose Fuel Cap
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0461 Fuel Level Sensor 1 Performance
    • Notes
    • Functional Description - Fuel Level Sensors
    • Theory Of Operation - Fuel Level Rationality
    • Enabling/Set Conditions And Possible Causes - Fuel Level Sensor Faults
    • Check For An Active Or Intermittent Condition
    • Primary And Secondary Fuel Level Sensor Circuit Fault Diagnostics
    • Fuel Level Sensor Rationality Diagnostics (P0461, P2066)
    • Fuel Level Sensor Tables
    • Powertrain Verification Test
  • P0462 Fuel Level Sensor 1 Circuit Low
    • Notes
    • Functional Description - Fuel Level Sensors
    • Theory Of Operation - Fuel Level Rationality
    • Enabling/Set Conditions And Possible Causes - Fuel Level Sensor Faults
    • Check For An Active Or Intermittent Condition
    • Primary And Secondary Fuel Level Sensor Circuit Fault Diagnostics
    • Fuel Level Sensor Rationality Diagnostics (P0461, P2066)
    • Fuel Level Sensor Tables
    • Powertrain Verification Test
  • P0463 Fuel Level Sensor 1 Circuit High
    • Notes
    • Functional Description - Fuel Level Sensors
    • Theory Of Operation - Fuel Level Rationality
    • Enabling/Set Conditions And Possible Causes - Fuel Level Sensor Faults
    • Check For An Active Or Intermittent Condition
    • Primary And Secondary Fuel Level Sensor Circuit Fault Diagnostics
    • Fuel Level Sensor Rationality Diagnostics (P0461, P2066)
    • Fuel Level Sensor Tables
    • Powertrain Verification Test
  • P0480 Cooling Fan 1 Control Circuit (Variable Speed Fan)
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test
  • P0489 EGR Control Circuit Low
    • Notes
    • Theory Of Operation
    • When Monitored
    • Set Condition
    • Default Action
    • Possible Causes
    • Diagnostic Test