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 ).