DTC P2413: EGR System Malfunction

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or How to Troubleshoot the CVT System(CVT) .

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.

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

   - 5. 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 

   The failure is duplicated. 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.  7

3. Determine possible failure area (VCC2 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 point 1	EGR valve 5P connector No. 2
   Test point 2	Body ground

   Courtesy 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 (VCC2 line):

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

   - 2. Jump the SCS line with the HDS.

   SCS Short

   - 3. Disconnect the following connector.

   PCM connector C (51P)

   - 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 point 1	EGR valve 5P connector No. 2
   Test point 2	PCM connector C (51P) No. 30

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The VCC2 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P2413 goes away and the PCM was updated, troubleshooting is complete. If DTC P2413 goes away and the PCM was substituted, replace the original PCM .

   NO 

   Repair an open in the VCC2 wire between the PCM (C30) 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.

   SCS Short

   - 3. Disconnect the following connector.

   PCM connector C (51P)

   - 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 point 1	PCM connector C (51P) No. 40
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short in the EGRL wire between the PCM (C40) 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 point 1	EGR valve 5P connector No. 4
   Test point 2	PCM connector C (51P) No. 40

   Courtesy 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 (C40) 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 point 1	EGR valve 5P connector No. 3 (EGR valve side)
   Test point 2	EGR valve 5P connector No. 4 (EGR valve side)

   Courtesy 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 point 1	EGR valve 5P connector No. 2 (EGR valve side)
   Test point 2	EGR valve 5P connector No. 4 (EGR valve side)

   Courtesy 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. Jump the SCS line with the HDS.

   SCS Short

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

   PCM connector C (51P)

   - 3. 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 point 1	PCM connector C (51P) No. 4
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short in the E-EGR wire between the PCM (C4) 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 point 1	EGR valve 5P connector No. 5
    Test point 2	PCM connector C (51P) No. 4

    Courtesy 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 (C4) and the EGR valve.

11. Open wire check (PG3 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 point 1	EGR valve 5P connector No. 1
    Test point 2	Body ground

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The PG3 wire is OK. Go to step 12.

    NO 

    Repair an open in the PG3 wire between the EGR valve and G101.

12. EGR valve operation check:

    - 1. Reconnect the following connector.

    PCM connector C (51P)

    - 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	12 volt battery positive terminal

    Courtesy 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	12 volt battery negative terminal

    Courtesy 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 , then recheck. If DTC P2413 goes away and the PCM was updated, troubleshooting is complete. If DTC P2413 goes away and the PCM was substituted, replace the original PCM .

    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 - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or How to Troubleshoot the CVT System(CVT) .

    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 

    The failure is not duplicated.

    NO 

    Replace the EGR valve .