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DTC P2413: EGR System Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
  1. Turn the ignition switch ON (II).
  2. Clear the DTC with the HDS.
  3. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, then let it idle.
  4. Do the EGR TEST in the INSPECTION MENU with the HDS.

    Is the result OK? 

    YES  - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EGR valve and the ECM/PCM.

    NO  - Go to step  5.

  5. Turn the ignition switch OFF.
  6. Turn the ignition switch ON (II).
  7. Check the EGR VLS in the DATA LIST with the HDS.

    Is about 0 V indicated? 

    YES  - Go to step  8.

    NO  - Go to step  19.

  8. Turn the ignition switch OFF.
  9. Disconnect the EGR valve 6P connector.
  10. Turn the ignition switch ON (II).
  11. Measure voltage between EGR valve 6P connector terminal No. 3 and body ground.
    Fig 1: Measuring Voltage Between EGR Valve 6P Connector Terminal No. 3 And Body Ground
    G05454845Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5V? 

    YES  - Go to step  13.

    NO  - Go to step  12.

  12. Measure voltage between ECM/PCM connector terminal A20 and body ground.
    Fig 2: Measuring Voltage Between ECM/PCM Connector Terminal A20 And Body Ground
    G05454846Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    YES  - Repair open in the wire between the EGR valve and the ECM/PCM (A20), then go to step  44.

    NO  - Go to step  51.

  13. Turn the ignition switch OFF.
  14. Jump the SCS line with the HDS.
  15. Disconnect ECM/PCM connector B (24P).
  16. Check for continuity between ECM/PCM connector terminal B12 and body ground.
    Fig 3: Checking Continuity Between ECM/PCM Connector Terminal B12 And Body Ground
    G05454847Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair short in the wire between the ECM/PCM (B12) and the EGR valve, then go to step  44.

    NO  - Go to step  17.

  17. Connect EGR valve 6P connector terminal No. 1 to body ground with a jumper wire.
    Fig 4: Connect EGR Valve 6P Connector Terminal No. 1 To Body Ground With Jumper Wire
    G05454848Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. Check for continuity between ECM/PCM connector terminal B12 and body ground.
    Fig 5: Checking Continuity Between ECM/PCM Connector Terminal B12 And Body Ground
    G05454849Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step  19.

    NO  - Repair open in the wire between the ECM/PCM (B12) and the EGR valve, then go to step  44.

  19. Turn the ignition switch OFF.
  20. If not already done, disconnect the EGR valve 6P connector.
  21. At the EGR valve side, measure resistance between EGR valve 6P connector terminals No. 1 and No. 2.
    Fig 6: Measuring Resistance Between EGR Valve 6P Connector Terminals No. 1 And No. 2
    G05454850Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 100 kΩ or more? 

    YES  - Go to step  43.

    NO  - Go to step  22.

  22. At the EGR valve side, measure resistance between EGR valve 6P connector terminals No. 1 and No. 3.
    Fig 7: Measuring Resistance Between EGR Valve 6P Connector Terminals No. 1 And No. 3
    G05454851Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 100 kΩ or more? 

    YES  - Go to step  43.

    NO  - Go to step  23.

  23. If not already done, jump the SCS line with the HDS.
  24. If not already done, disconnect ECM/PCM connector B (24P).
  25. Check for continuity between ECM/PCM connector terminal B16 and body ground.
    Fig 8: Checking Continuity Between ECM/PCM Connector Terminal B16 And Body Ground
    G05454852Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair short in the wire between the ECM/PCM (B16) and the EGR valve, then go to step  44.

    NO  - Go to step  26.

  26. Connect EGR valve 6P connector terminal No. 4 to body ground with a jumper wire.
    Fig 9: Connecting EGR Valve 6P Connector Terminal No. 4 To Body Ground With Jumper Wire
    G05454853Courtesy of AMERICAN HONDA MOTOR CO., INC.
  27. Check for continuity between ECM/PCM connector terminal B16 and body ground.
    Fig 10: Checking Continuity Between ECM/PCM Connector Terminal B16 And Body Ground
    G05454854Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step  28.

    NO  - Repair open in the wire between the ECM/PCM (B16) and the EGR valve, then go to step  44.

  28. Remove the jumper wire from the EGR valve 6P connector.
  29. Check for continuity between EGR valve 6P connector terminal No. 6 and body ground.
    Fig 11: Checking Continuity Between EGR Valve 6P Connector Terminal No. 6 And Body Ground
    G05454855Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step  30.

    NO  - Repair open in the wire between the EGR valve and G101, then go to step  44.

  30. Reconnect ECM/PCM connector B (24P).
  31. Connect the battery positive terminal to EGR valve 6P connector terminal No. 4 with a jumper wire.
    Fig 12: Connecting Battery Positive Terminal To EGR Valve 6P Connector Terminal No. 4 With Jumper Wire
    G05454856Courtesy of AMERICAN HONDA MOTOR CO., INC.
  32. Start the engine and let it idle, then connect the battery negative terminal to EGR valve 6P connector terminal No. 6 with a jumper wire.

    Does the engine stall or run rough? 

    YES  - Go to step  51.

    NO  - Go to step  33.

  33. Turn the ignition switch OFF.
  34. Remove the EGR valve (see EGR VALVE REPLACEMENT ).
  35. Clean the intake manifold EGR port with throttle plate and induction cleaner. Also, clean the passage inside the EGR valve with throttle plate and induction cleaner.
  36. Install the EGR valve (see EGR VALVE REPLACEMENT ).
  37. Reconnect all connectors.
  38. Turn the ignition switch ON (II).
  39. Reset the ECM/PCM with the HDS.
  40. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
  41. Do the EGR TEST in the INSPECTION MENU with the HDS.

    Is the result OK? 

    YES  - Go to step  49.

    NO  - Go to step  42.

  42. Turn the ignition switch OFF.
  43. Replace the EGR valve (see EGR VALVE REPLACEMENT ).
  44. Reconnect all connectors.
  45. Turn the ignition switch ON (II).
  46. Reset the ECM/PCM with the HDS.
  47. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
  48. Do the EGR TEST in the INSPECTION MENU with the HDS.
  49. Check for Temporary DTCs or DTCs with the HDS.

    Is DTC P2413 indicated? 

    YES  - Check for poor connections or loose terminals at the EGR valve and the ECM/PCM, then go to step  1.

    NO  - Go to step  50.

  50. Monitor the OBD STATUS for DTC P2413 in the DTCs MENU with the HDS.

    Does the screen indicate PASSED? 

    YES  - Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 49, go to the indicated DTCs troubleshooting.

    NO  - If the screen indicates FAILED, go to step  1 and recheck. If the screen indicates EXECUTING, keep driving until a result comes on. If the screen indicates OUT OF CONDITION, go to step  48.

  51. Turn the ignition switch OFF.
  52. Reconnect all connectors.
  53. Update the ECM/PCM if it does not have the latest software (see UPDATING THE ECM/PCM ), or substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).
  54. Do the EGR TEST in the INSPECTION MENU with the HDS.
  55. Check for Temporary DTCs or DTCs with the HDS.

    Is DTC P2413 indicated? 

    YES  - Check for poor connections or loose terminals at the EGR valve and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ), then go to step  54. If the ECM/PCM was substituted, go to step  1.

    NO  - Go to step  56.

  56. Monitor the OBD STATUS for DTC P2413 in the DTCs MENU with the HDS.

    Does the screen indicate PASSED? 

    YES  - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM (see ECM/PCM REPLACEMENT ). If any other Temporary DTCs or DTCs were indicated in step 55, go to the indicated DTCs troubleshooting.

    NO  - If the screen indicates FAILED, check for poor connections or loose terminals at the EGR valve and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ), then go to step  54. If the ECM/PCM was substituted, go to step  1. If the screen indicates EXECUTING, keep driving until a result comes on. If the screen indicates OUT OF CONDITION, go to step  54.

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