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DTC P2413

DTC P2413  : EGR System Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016) .
DTC Description Confirmed DTC Pending DTC Freeze Frame
P2413 EGR System Malfunction      

DTC (PGM-FI)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    - 2. Clear the DTC with the HDS.

    - 3. Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.

    - 4. Select the EGR TEST in the INSPECTION MENU with the HDS.

    EGR TEST

    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 PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

    NO 

    Go to step 2.

  2. Determine possible failure area (EGR valve position sensor, others)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Turn the vehicle to the ON mode.

    - 3. Check the parameter(s) below with the HDS.

    Signal Threshold Current DTC
    Values Unit Values Unit
    EGR valve position sensor (EGR VLS) about 0 V    

    Do the current condition(s) match the threshold?

    YES 

    Go to step 3.

    NO 

    Go to step 7.

  3. Determine possible failure area (VCC1 line, others)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Disconnect the following connector.

    EGR valve 5P connector

    - 3. Turn the vehicle to the ON mode.

    - 4. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
      EGR valve 5P connector: disconnected
    Test circuit VCC1
    Test point 1 EGR valve 5P connector No. 2 (PNK)
    Test point 2 Body ground
    GHH319606Courtesy of HONDA, U.S.A., INC.

    Is there about 5.0 V?

    YES 

    Go to step 5.

    NO 

    Go to step 4.

  4. Open wire check (VCC1 line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Jump the SCS line with the HDS.

    - 3. Disconnect the following connector.

    PCM connector C (51P) - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the A/T System (2014 2015)

    - 4. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
      PCM connector C (51P): disconnected
    Test circuit VCC1
    Test point 1 EGR valve 5P connector No. 2 (PNK)
    Test point 2 PCM connector C (51P) No. 32 (PNK)
    GHH319607Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The VCC1 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2016), or PCM Removal and Installation (2014 2015) .

    NO 

    Repair an open in the VCC1 wire between the PCM (C32) and the EGR valve.

  5. Shorted wire check (EGRL line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Jump the SCS line with the HDS.

    - 3. Disconnect the following connector.

    PCM connector C (51P) - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016)

    - 4. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
      PCM connector C (51P): disconnected
    Test circuit EGRL
    Test point 1 PCM connector C (51P) No. 46 (LT BLU)
    Test point 2 Body ground
    GHH319608Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short in the EGRL wire between the PCM (C46) and the EGR valve.

    NO 

    The EGRL wire is not shorted. Go to step 6.

  6. Open wire check (EGRL line)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
      PCM connector C (51P): disconnected
    Test circuit EGRL
    Test point 1 EGR valve 5P connector No. 4 (LT BLU)
    Test point 2 PCM connector C (51P) No. 46 (LT BLU)
    GHH319609Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The EGRL wire is OK. Go to step 7.

    NO 

    Repair an open in the EGRL wire between the PCM (C46) and the EGR valve.

  7. EGR valve position sensor internal circuit check 1

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. If not already done, disconnect the following connector.

    EGR valve 5P connector

    - 3. At the EGR valve side, measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
    Test circuit EGRL, SG1
    Test point 1 EGR valve 5P connector No. 3 (EGR valve side)
    Test point 2 EGR valve 5P connector No. 4 (EGR valve side)
    GHH319610Courtesy of HONDA, U.S.A., INC.

    Is there 100 kΩ or more?

    YES 

    Replace the EGR valve .

    NO 

    Go to step 8.

  8. EGR valve position sensor internal circuit check 2

    -1. At the EGR valve side, measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
    Test circuit EGRL, VCC1
    Test point 1 EGR valve 5P connector No. 2 (EGR valve side)
    Test point 2 EGR valve 5P connector No. 4 (EGR valve side)
    GHH319611Courtesy of HONDA, U.S.A., INC.

    Is there 100 kΩ or more?

    YES 

    Replace the EGR valve .

    NO 

    Go to step 9.

  9. Shorted wire check (E EGR line)

    -1. If not already done, disconnect the following connector.

    PCM connector C (51P) - Refer to: How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the A/T System (2014 2015)

    - 2. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
      PCM connector C (51P): disconnected
    Test circuit E EGR
    Test point 1 PCM connector C (51P) No. 13 (PUR)
    Test point 2 Body ground
    GHH319612Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short in the E EGR wire between the PCM (C13) and the EGR valve.

    NO 

    The E EGR wire is not shorted. Go to step 10.

  10. Open wire check (E EGR line)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      EGR valve 5P connector: disconnected
      PCM connector C (51P): disconnected
    Test circuit E EGR
    Test point 1 EGR valve 5P connector No. 5 (PUR)
    Test point 2 PCM connector B (51P) No. 13 (PUR)
    GHH319613Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The E EGR wire is OK. Go to step 11.

    NO 

    Repair an open in the E EGR wire between the PCM (C13) and the EGR valve.

  11. Open wire check (E-EGR PG/PG line)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    EGR valve 5P connector: disconnected
    PCM connector C (51P): disconnected
    Test circuit E-EGR PG
    Test point 1 EGR valve 5P connector No. 1 (BLK)
    Test point 2 Body ground
    GHH319614Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The E-EGR PG/PG wire is OK. Go to step 12.

    NO 

    Repair an open in the E-EGR PG/PG wire between the EGR valve and G101.

  12. EGR valve operation check

    -1. Reconnect the following connector.

    PCM connector C (51P) - Refer to: How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016)

    - 2. At the EGR valve side, connect terminals A and B with a jumper wire.

    Terminal A EGR valve 5P connector No. 5 (EGR valve side)
    Terminal B Battery positive terminal
    GHH319615Courtesy of HONDA, U.S.A., INC.

    - 3. Start the engine, and let it idle.

    - 4. At the EGR valve side, connect terminals A and B with a jumper wire.

    Terminal A EGR valve 5P connector No. 1 (EGR valve side)
    Terminal B Battery negative terminal
    GHH319616Courtesy of HONDA, U.S.A., INC.

    Does the engine stall or run roughly?

    YES 

    The EGR valve is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .

    NO 

    Go to step 13.

  13. EGR port and passage cleaning

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Remove the EGR valve.

    - 3. Clean the intake manifold EGR port with throttle plate cleaner. Also, clean the passage inside the EGR valve with throttle plate cleaner.

    - 4. Install the EGR valve.

    - 5. Reconnect all connectors.

    - 6. Turn the vehicle to the ON mode.

    - 7. Reset the PCM with the HDS.

    Reset PCM

    - 8. Do the PCM idle learn procedure.

    - 9. Select the EGR TEST in the INSPECTION MENU with the HDS.

    EGR TEST

    Is the result OK?

    YES 

    Troubleshooting is complete.

    NO 

    Replace the EGR valve .

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