Code No. P2413: EGR System Performance


OPERATION



  • System power is supplied from the engine-ECU (terminal No. 19) to the EGR valve (terminal No. 6).
  • The engine-ECU (terminal No. 20) turns on the power transistor to flow current to the EGR valve (terminal No. 4).

FUNCTION



  • The engine-ECU performs duty control over the EGR valve (DC motor).
  • The engine-ECU performs feedback control over the EGR valve based on the signals from the EGR position sensor.

TROUBLE JUDGMENT


Check Condition
  • Ignition switch is in "ON" position
Judgment Criterion
  • The EGR valve in sticking state (a high duty state continues for the predetermined time or more) is repeatedly detected.

PROBABLE CAUSES



  • Failed EGR valve
  • Open/short circuit in EGR valve circuit or loose connector contact
  • Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code

Q. Is any other diagnosis code than P2413 output?
Inspection chart for diagnosis codes (Refer to ).
Go to Step 2 .

STEP 2. Check EGR valve itself

  • Check EGR valve itself [Refer to GROUP 17 - Emission Control System - Exhaust Gas Recirculation (EGR) System - EGR valve check ].

Q. Is the check result normal?
Go to Step 3 .
Replace the EGR valve assembly.

STEP 3. Connector check: C-105 engine-ECU connector.

Q. Is the check result normal?

Go to Step 4 .

Repair or replace the connector.

STEP 4. Check harness between the C-105 (terminal No. 19) engine-ECU connector and A-45 (terminal No. 6) EGR valve assembly connector.



  • Check output line for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 5 .

Repair the damaged harness wire.

STEP 5. Check harness between the C-105 (terminal No. 20) engine-ECU connector and A-45 (terminal No. 4) EGR valve connector.



  • Check output line for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 6 .

Repair the damaged harness wire.

STEP 6. M.U.T.-III diagnosis code.

  • After erasing the diagnosis code through M.U.T.-III, start the engine and confirm whether the diagnosis code is output.

Q. Is the diagnosis code set?
Replace the engine-ECU. When the engine-ECU is replaced, write the chassis number (Refer to GROUP 00 - How to Perform Chassis Number Writing ). After replacing the engine-ECU, register the injector identification code and learn fuel injection (Refer to GROUP 00 - Precautions Before Service - What The Common Rail Engine Learns ).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).