Code No. P2413: EGR System Performance


OPERATION



  • Refer to Code No. P0403: EGR Valve DC Motor Malfunction

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.

FAIL-SAFE AND BACKUP FUNCTION



  • The EGR control is stopped (fully closed).
  • The DPF regeneration is prohibited.
  • The throttle valve is opened (Electrical discontinuity).
  • The AS&G control is prohibited.
  • The NPG/SPG control is stopped.
  • The small injection quantity learning is prohibited.

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 assembly itself.

  • Check EGR valve assembly itself [Refer to GROUP 17 - Emission Control <DIESEL> - Exhaust Gas Recirculation (EGR) System - EGR Valve (DC Motor) Check ].

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

STEP 3. Connector check: B-10 engine-ECU connector.

Q. Is the check result normal?
Go to Step 4 .
Repair or replace the connector.

STEP 4. Check harness between B-10 (terminal No. 115) engine-ECU connector and B-16 (terminal No. 6) EGR valve assembly connector.
note Before checking harness, check intermediate connector A-17, and repair if necessary.

  • 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 B-10 (terminal No. 130) engine-ECU connector and B-16 (terminal No. 4) EGR valve assembly connector.
note Before checking harness, check intermediate connector A-17, and repair if necessary.

  • 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.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).