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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 to ON (II), or press the engine start/stop button to select the ON mode.
  2. Clear the DTC with the HDS.
  3. Start the engine. Hold the engine speed at 3, 000 RPM without load (A/T in P or N, M/T in 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 to LOCK (0), or press the engine start/stop button to select the OFF mode.
  6. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  7. Check the EGR VLS in the DATA LIST with the HDS.

    Is about 0 Vindicated? 

    YES  - Go to step 8.

    NO  - Go to step  21.

  8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  9. Disconnect the EGR valve 5P connector.
  10. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  11. Measure the voltage between EGR valve 5P connector terminal No. 4 and body ground.
    Fig 1: Measuring Voltage Between EGR Valve 5P Connector Terminal No. 4 And Body Ground
    G08069855Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    YES  - Go to step  16.

    NO  - Go to step 12.

  12. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  13. Jump the SCS line with the HDS.
  14. Disconnect ECM/PCM connector C (49P).
  15. Check for continuity between ECM/PCM connector terminal C12 and EGR valve 5P connector terminal No. 4.
    Fig 2: Checking Continuity Between ECM/PCM Connector Terminal C12 And EGR Valve 5P Connector
    G08069856Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step  50.

    NO  - Repair open in the wire between the EGR valve and the ECM/PCM (C12), then go to step  42.

  16. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  17. Jump the SCS line with the HDS.
  18. Disconnect ECM/PCM connector C (49P).
  19. Check for continuity between ECM/PCM connector terminal C34 and body ground.
    Fig 3: Checking Continuity Between ECM/PCM Connector Terminal C34 And Body Ground
    G08069857Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair short in the wire between the ECM/PCM (C34) and the EGR valve, then go to step  42.

    NO  - Go to step 20.

  20. Check for continuity between ECM/PCM connector terminal C34 and EGR valve 5P connector terminal No. 2.
    Fig 4: Checking Continuity Between ECM/PCM Connector Terminal C34 And EGR Valve 5P Connector
    G08069858Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 21.

    NO  - Repair open in the wire between the ECM/PCM (C34) and the EGR valve, then go to step  42.

  21. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  22. Disconnect the EGR valve 5P connector.
  23. At the EGR valve side, measure the resistance between EGR valve 5P connector terminals No. 2 and No. 3.
    Fig 5: Measuring Resistance Between EGR Valve 5P Connector Terminals No. 2 And No. 3
    G08069859Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 100 kΩ or more? 

    YES  - Go to step  41.

    NO  - Go to step 24.

  24. At the EGR valve side, measure the resistance between EGR valve 5P connector terminals No. 2 and No. 4.
    Fig 6: Measuring Resistance Between EGR Valve 5P Connector Terminals No. 2 And No. 4
    G08069860Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there 100 kΩ or more? 

    YES  - Go to step  41.

    NO  - Go to step 25.

  25. Check for continuity between ECM/PCM connector terminal C10 and body ground.
    Fig 7: Checking Continuity Between ECM/PCM Connector Terminal C10 And Body Ground
    G08069861Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair short in the wire between the ECM/PCM (C10) and the EGR valve, then go to step  42.

    NO  - Go to step 26.

  26. Check for continuity between ECM/PCM connector terminal C10 and EGR valve 5P connector terminal No. 1.
    Fig 8: Checking Continuity Between ECM/PCM Connector And EGR Valve 5P Connector
    G08069862Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 27.

    NO  - Repair open in the wire between the ECM/PCM (C10) and the EGR valve, then go to step  42.

  27. Check for continuity between EGR valve 5P connector terminal No. 5 and body ground.
    Fig 9: Checking Continuity Between EGR Valve 5P Connector Terminal No. 5 And Body Ground
    G08069863Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 28.

    NO  - Repair open in the wire between the EGR valve and G101; M/T(see CONNECTOR TO FUSE/RELAY BOX INDEX ), A/T (see CONNECTOR TO FUSE/RELAY BOX INDEX ), then go to step  42.

  28. Reconnect ECM/PCM connector C (49P).
  29. At the EGR valve side, connect the battery positive terminal to EGR valve 5P connector terminal No. 1 with a jumper wire.
    Fig 10: Connecting Battery Positive Terminal To EGR Valve 5P Connector With Jumper Wire
    G08069864Courtesy of AMERICAN HONDA MOTOR CO., INC.
  30. Start the engine, and let it idle, then connect the battery negative terminal to EGR valve 5P connector terminal No. 5 with a jumper wire.

    Does the engine stall? 

    YES  - Go to step  48.

    NO  - Go to step 31.

  31. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  32. Remove the EGR valve (see EGR VALVE REPLACEMENT  ).
  33. Clean any carbon build-up inside the EGR valve with throttle plate cleaner.
  34. Install the EGR valve (see EGR VALVE REPLACEMENT  ).
  35. Reconnect all connectors.
  36. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  37. Reset the ECM/PCM with the HDS.
  38. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
  39. Do the EGR TEST in the INSPECTION MENU with the HDS.

    Is the result OK? 

    YES  - Go to step  47.

    NO  - Go to step 40.

  40. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  41. Replace the EGR valve (see EGR VALVE REPLACEMENT  ).
  42. Reconnect all connectors.
  43. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  44. Reset the ECM/PCM with the HDS.
  45. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
  46. Do the EGR TEST in the INSPECTION MENU with the HDS.
  47. Check for Pending or Confirmed 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  - Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC'S TROUBLESHOOTING .

  48. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  49. Reconnect all connectors.
  50. Update the ECM/PCM if it does not have the latest software (see ECM/PCM UPDATE ), or substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).
  51. Do the EGR TEST in the INSPECTION MENU with the HDS.
  52. Check for Pending or Confirmed 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  51. If the ECM/PCM was substituted, go to step  1.

    NO  - 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 Pending or Confirmed DTCs are indicated, go to the indicated DTC'S TROUBLESHOOTING .

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