DTC    P2463    Diesel Particulate Filter Restriction - Soot Accumulation
DTC    P244B    Diesel Particulate Filter Differential Pressure Too High

for Preparation Click here

DESCRIPTION

HINT:

Due to fail-safe operation when other DTCs are stored, PM regeneration may be prohibited.

These DTCs may be stored due to the fact that PM regeneration is prohibited due to the fail-safe operation of other DTCs.

MONITOR DESCRIPTION

1. 
   When the differential pressure is large, the ECM determines that the DPF has become contaminated and illuminates the MIL.
   
   
   
   
   

   HINT:

   1. If a large amount of carbon deposits exists in the EGR valve assembly, the following parts possibly also have deposits inside: The intake manifold, diesel throttle body assembly, DPF catalyst, and other parts related to the exhaust gas.
      
   2. DPF catalyst diagnosis:
      If the DPF catalyst has become clogged with PM (Particulate Matter) and the value of the "Catalyst Differential Press" is more than 0.4 at an engine speed of 4000 rpm, DTC P2463 (Diesel Particulate Filter Restriction - Soot Accumulation) may be present. If the value of the "Catalyst Differential Press" is about 0.4 or less at an engine speed of 4000 rpm, the catalyst is probably clogged with PM even if DTC P2463 is not present. Check the Catalyst Differential Press by entering the following menus on an intelligent tester: Powertrain / Engine and ECT / Data List / Catalyst Differential Press.
      If the DPF catalyst has become clogged with PM (Particulate Matter) and the value of the "DPF Differential Pressure" is more than 80 kPa, DTC P244B (Diesel Particulate Filter Differential Pressure Too High) may be present. If the value of the "DPF Differential Pressure" is more than 80 kPa, the catalyst is probably clogged with PM even if DTC P244B is not present. Check the DPF Differential Pressure by entering the following menus on an intelligent tester: Powertrain / Engine and ECT / Data List / DPF Differential Pressure.
      

INSPECTION PROCEDURE

NOTICE:

When replacing the ECM, fuel injector and/or DPF catalyst, the ECM needs Registration and Initialization (Click here).

HINT:

1. When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.
   
2. Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
   
3. Before performing the repair, confirm the recent operation conditions with the customer. If the vehicle is driven primarily at low speeds or under light load, the DPF catalytic temperature does not increase, and PM will accumulate.
   Under these conditions, even if the DPF catalytic converter and the engine are operating normally, the DTC might be stored.
   In this case, perform PM regeneration using the intelligent tester, check that the DTC does nor recur, and then return the vehicle to the customer.
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / DTC.
   

4. Read DTCs.
   

   Result 

   Result	Proceed to
   P2463 and/or P244B P2463 and P252F	A
   Except above	B

   HINT:

   1. If DTCs other than P2463 and P244B are output, perform troubleshooting for those DTCs first.
      
   2. If both P2463 and P252F are stored at the same time, proceed to A.
      

B	GO TO DTC CHART (Click here)

A

1. Check the engine oil quality and quantity.
   

2. If the engine oil level exceeds the full level or the engine oil is diluted, replace the engine oil (Click here).
   

   NOTICE:

   Do not fill engine oil above the full level mark.

   HINT:

   1. Toyota recommends the use of approved "Toyota genuine motor oil". Another oil of matching quality can also be used.
      Oil grade: ACEA C2
      
   2. Using engine oil other than ACEA C2 may damage the catalytic converter.
      
   3. ACEA C2 is best choice for prevention of increasing the DPF differential pressure.
      

3. Reset the oil maintenance indicator (Click here).
   

4. Start the engine and warm it up until the engine coolant temperature reaches 75 to 86°C (167 to 187°F).
   

5. Drive the vehicle for 2 minutes or more at an engine speed of 1800 to 3000 rpm and a vehicle speed of 15 km/h (9.3 mph) or more.
   

   HINT:

   Performing this drive pattern resets the engine oil level error detection and ends prohibition of PM regeneration (fail-safe operation ends).

NEXT

CAUTION:

Be careful of being burned by exhaust gases during the following inspection.

NOTICE:

1. Confirm the paint marks on the exhaust pipe air hoses before disconnecting them.
   
2. Check that the exhaust pipe air hose connections are on the correct side of the DPF catalytic converter.
   

1. Disconnect the exhaust pipe air hose (both upstream and downstream) on the differential pressure sensor side.
   

   
   
   
   

2. Start the engine.
   

3. Check if there is exhaust gas pulsation from both exhaust pipe air hoses while the engine is idling.
   

   Result 

   Result	Proceed to
   No exhaust gas pulsation	A
   Exhaust gas pulsation exists	B

B	Go to step 5

A

1. Repair or replace the malfunctioning parts of the exhaust pipe air hoses or the transmitting pipes.
   

NEXT

1. Check if there is an exhaust gas leak or blockage in the whole exhaust system components.
   

   Result 

   Result	Proceed to
   Leaks and/or blockages exists in the exhaust system	A
   No leaks and/or blockages in the exhaust system	B

B	Go to step 7

A

1. Repair or replace the exhaust gas leak or blockage point.
   

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
   

4. Enter the following menus: Powertrain / Engine and ECT / Data List / Catalyst Differential Press.
   

5. Take a snapshot with the intelligent tester at an engine speed of 4000 rpm without load.
   

6. Record the Catalyst Differential Press at 4000 rpm.
   

   HINT:

   1. When reading the values of Data List, confirm that PM regeneration is not activating (value of "After Injection Period" is 0) by entering the following menus: Powertrain / Engine and ECT / Data List / After Injection Period.
      If PM regeneration is activating (value of "After Injection Period" is not 0), drive the vehicle until the PM regeneration is complete (value of "After Injection Period" becomes 0).
      
   2. Detailed graphs can be displayed by transferring the stored snapshot from the tester to a PC (personal computer) with Intelligent Viewer installed.
      

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Clear the DTCs (Click here).
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM) / Data List / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and DPNR/DPF Status Reju(PM).
   

   HINT:

   After clearing DTCs, immediately enter the Active Test / Activate the DPF Rejuvenate (PM), and then drive the vehicle.

5. Perform the Active Test then drive the vehicle at a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
   

   HINT:

   While the Active Test / Activate the DPF Rejuvenate (PM) is performing, the accelerator pedal opening angle should be kept as constant as possible.

6. Confirm that both Exhaust Temperature B1S1 and Exhaust Temperature B1S2 reach 250°C (482°F) or more and the DPNR/DPF Status Reju(PM) turns from "Ready" to "Operate".
   

   HINT:

   1. If the exhaust gas temperature does not reach the specified value, drive the vehicle again with a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
      
   2. Perform Active Test / Activate the DPF Rejuvenate(PM) until one of the following conditions is met:
      
   1. DPNR/DPF Status Reju(PM) displays "Compl".
      
   2. DPNR/DPF Status Reju(PM) turns from "Operate" to "Ready" even if the cumulative time of "Operate" exceeds 35 minutes.
      
   3. DPNR/DPF Status Reju(PM) stays "Ready" even if both Exhaust Temperature B1S1 and Exhaust Temperature B1S2 have reached 250°C (482°F) or more for more than 10 minutes with an engine speed of 2000 rpm or more. (PM regeneration could not operate.)
      

7. Take a snapshot with the tester when the Exhaust Temperature B1S1 and Exhaust Temperature B1S2 rise and become stable.
   

   HINT:

   Detailed graphs can be displayed by transferring the stored snapshot data from the tester to a PC (personal computer) with Intelligent Viewer installed.

8. Enter the following menus: Powertrain / Engine and ECT / Data List / DPNR/DPF Status Reju(PM).
   

9. Confirm the DPNR/DPF Status Reju(PM).
   

   HINT:

   1. During the performing PM regeneration, the DPNR/DPF Status Reju(PM) displays "Operate".
      
   2. If the PM regeneration is stopped (DPNR/DPF Status Reju(PM) displays "Ready") because the exhaust gas temperature is reduced due to the driving conditions, the PM regeneration is restarted automatically (DPNR/DPF Status Reju(PM) displays "Operate") when the exhaust gas temperature is recuperated by high engine speed driving.
      
   3. If the cumulative time of DPNR/DPF Status Reju(PM) at "Operate" exceeds 35 minutes, the active test stops forcibly. In this case, the DPNR/DPF Status Reju(PM) turns to "Ready" and the Active Test / Activate the DPF Rejuvenate (PM) will be prohibited forcibly for one hour during engine running. Thus, perform the Active Test again after running the engine for one hour.
      
   
   

   DPNR/DPF Status Reju(PM) (Reference)  

   Tester Display	Status
   Standby	Before entering the "Activate the DPF Rejuvenate (PM)"
   Ready	Enabling condition for "Activate the DPF Rejuvenate (PM)" is not sufficient
   Operate	PM regeneration is performing. If "Activate the DPF Rejuvenate (PM)" is not finished completely, the status turns to "Ready". For example, the vehicle is idling for more than 3 minutes while the PM regeneration is performing, the exhaust gas temperature falls to outside of enabling condition and PM regeneration is stopped. If "Activate the DPF Rejuvenate (PM)" is finished completely, the status turns to "Compl".
   Compl	PM regeneration is completed (Amount of PM is 0 g)

10. Read the values of the Data List / Exhaust Temperature B1S2 in the Snapshot Review function.
    

    Standard:

    DPNR/DPF Status Reju(PM) is "Compl" and Exhaust Temperature B1S2 is 500°C (932°F) or more during PM regeneration.
    

OK	Go to step 21
NG	Go to step 9

1. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
   

2. Allow the engine to idle for 30 seconds or more.
   

   HINT:

   The shift lever should be in N and the A/C switch and all accessory switches should be off.

3. Connect the intelligent tester to the DLC3.
   

4. Turn the tester on.
   

5. Enter the following menus: Powertrain / Engine and ECT / Data List / Injection Feedback Val. #1 to #4 and Injection Volume.
   

6. Read the value.
   

   HINT:

   When reading the values of Data List, confirm that PM regeneration is not activating (value of "After Injection Period" is 0) by entering the following menus: Powertrain / Engine and ECT / Data List / After Injection Period.

   If PM regeneration is activating (value of "After Injection Period" is not 0), drive the vehicle until the PM regeneration is complete (value of "After Injection Period" becomes 0).

   
   

   Standard:

   
   

   Tester Display	Engine Condition	Specified Condition
   Injection Volume	Idling	Less than 8 mm3/st
   Injection Feedback Val. #1 Injection Feedback Val. #2 Injection Feedback Val. #3 Injection Feedback Val. #4	Idling	Between -2.0 mm3/st and 2.0 mm3/st

   HINT:

   1. Cylinders that have a compensation value which is more than the value specified above are considered to be faulty. Use the following steps to inspect and repair the cylinder.
      
   2. If the value of Injection Volume is 8 mm³/st or more and the value of all of the Injector Feedback Val. #1 to #4 is within the threshold, replace the fuel injectors for all cylinders.
      In this case, there is a possibility that too much recirculated exhaust gas enters into the engine. Therefore, you should compare the Target EGR Position with the Actual EGR Valve Pos. by entering the following menus using the intelligent tester: Powertrain / Engine and ECT / Data List / Target EGR Position and Actual EGR Valve Pos.
      If the difference between Target EGR Position and Actual EGR Valve Pos. exceeds +/-10%, the EGR system may have a malfunction.
      

OK	Go to step 15
NG	Go to step 10

1. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
   

2. Connect the intelligent tester to the DLC3.
   

3. Turn the tester on.
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Cylinder#1 to #4 Fuel Cut.
   

5. Check the four cylinders in sequence to identify a faulty cylinder.
   

   HINT:

   1. DTCs may be output after this Active Test. Make sure to check for DTCs after this Active Test. If any DTCs are output, make sure to clear them (Click here).
      
   2. If the engine idling condition does not change despite cutting off the fuel injection, the cylinder is malfunctioning.
      

NEXT

1. Change the fuel injector of the malfunctioning cylinder to a fuel injector of the cylinder that functions normally.
   

2. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
   

3. Connect the intelligent tester to the DLC3.
   

4. Turn the tester on.
   

5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Cylinder#1 to #4 Fuel Cut.
   

6. Check the four cylinders in sequence to identify a faulty cylinder.
   

   HINT:

   1. DTCs may be output after this Active Test. Make sure to check for DTCs after this Active Test. If any DTCs are output, make sure to clear them (Click here).
      
   2. If the engine idling remains normal despite cutting off the fuel injection, the cylinder is malfunctioning.
      

   HINT:

   If the engine idling remains normal despite cutting off the fuel injection, the cylinder is malfunctioning.

7. Confirm the malfunctioning cylinder.
   

   Result 

   Result	Proceed to
   Different cylinder malfunction identified	A
   Same cylinder malfunction identified	B

B	Go to step 17

A

1. Replace the injector assembly of the malfunctioning cylinder (Click here).
   

NEXT

1. Perform registration and initialization (Click here).
   

NEXT

1. Bleed air from fuel system (Click here).
   

NEXT	Go to step 18

1. Remove the electric EGR valve assembly (Click here).
   

2. Connect the electric EGR valve assembly connector.
   

3. Connect the intelligent tester to the DLC3.
   

4. Turn the ignition switch to ON and turn the tester on.
   

5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position / Data List / Actual EGR Valve Pos.
   

6. When changing the Active Test value from 0 to 100%, check that Actual EGR Valve Pos. smoothly changes to the set opening angle.
   

   OK:

   Value smoothly changes to the set opening angle.
   

7. Check that the EGR valve is fully closed.
   

   OK:

   The EGR valve fully closes.
   

   
   
   
   

   HINT:

   1. Hold the EGR valve to a light and confirm that the valve contacts with the valve seat securely.
      
   2. If light leaks out from the valve, the EGR valve is not fully closed.
      
   3. If the EGR valve cannot close fully, hesitation or poor acceleration almost certainly has occurred while driving the vehicle.
      
   4. Even if the EGR valve is closed completely, light leaks from the closed gap of valve seat (A part) as shown in the illustration, but this is normal.
      

8. Remove the diesel throttle body assembly, intake air connector and EGR pipe connector.
   

9. Remove the deposits from those parts and clean them.
   

   NOTICE:

   1. When cleaning the EGR valve and the diesel throttle body, use a piece of cloth. Spraying the solvent directly onto these parts or soaking the parts in the solvent may damage the parts.
      
   2. Extreme care must be taken to prevent the removed deposits from falling into the engine unit during cleaning.
      

   HINT:

   1. Remove the intake manifold from the cylinder head when it has to be cleaned.
      
   2. Do not leave any deposits in the EGR valve assembly when cleaning the valve.
      

10. Reinstall the electric EGR valve assembly, diesel throttle body assembly, intake air connector and EGR pipe connector.
    

OK	Go to step 19
NG	Go to step 16

1. Replace the electric EGR valve assembly (Click here).
   

2. Turn the ignition switch to ON.
   

3. Turn the ignition switch off and wait for 30 seconds or more.
   

NEXT	Go to step 18

1. Check the engine assembly to determine the cause of low compression and other factors that would cause the exhaust gas temperature to rise insufficiently.
   

   HINT:

   The speed of each cylinder can be measured (compression test) by using the intelligent tester.

   In the compression test, need to disconnect the injector connectors of all cylinders, and crank the engine for approximately 10 seconds. At this time, the speed of each cylinder is measured. If the speed of one cylinder is higher than the other cylinders, the compression pressure of that cylinder is determined to be lower than the other cylinders.
   
   1. Warm up the engine.
      
   2. Turn the ignition switch off and disconnect the injector connectors of all cylinders.
      
   3. Connect the intelligent tester to the DLC3.
      
   4. Turn the ignition switch to ON and turn the tester on.
      
   5. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed of Cyl #1, Engine Speed of Cyl #2, Engine Speed of Cyl #3, Engine Speed of Cyl #4 and Av Engine Speed of All Cyl.
      
   6. Crank the engine for about 10 seconds.
      

      NOTICE:

      1. Do not crank the engine for more than 20 seconds.
         
      2. Use a fully-charged battery.
         

   7. Read the engine speed (Engine Speed of Cyl #1 to #4, Av Engine Speed of All Cyl) displayed on the tester when the ignition switch is ON.
      

      HINT:

      Do not turn the ignition switch off when finish the cranking.

   8. Reconnect the injector connectors of all cylinders.
      
   9. Clear the DTCs.
      

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Clear the DTCs (Click here).
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM) / Data List / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and DPNR/DPF Status Reju(PM).
   

   HINT:

   After clearing DTCs, immediately enter the Active Test / Activate the DPF Rejuvenate (PM), and then drive the vehicle.

5. Perform the Active Test then drive the vehicle at a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
   

   HINT:

   While the Active Test / Activate the DPF Rejuvenate (PM) is performing, the accelerator pedal opening angle should be kept as constant as possible.

6. Confirm that both Exhaust Temperature B1S1 and Exhaust Temperature B1S2 reach 250°C (482°F) or more and the DPNR/DPF Status Reju(PM) turns from "Ready" to "Operate".
   

   HINT:

   1. If the exhaust gas temperature does not reach the specified value, drive the vehicle again with a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
      
   2. Perform Active Test / Activate the DPF Rejuvenate(PM) until one of the following conditions is met:
      
   1. DPNR/DPF Status Reju(PM) displays "Compl".
      
   2. DPNR/DPF Status Reju(PM) turns from "Operate" to "Ready" even if the cumulative time of "Operate" exceeds 35 minutes.
      
   3. DPNR/DPF Status Reju(PM) stays "Ready" even if both Exhaust Temperature B1S1 and Exhaust Temperature B1S2 have reached 250°C (482°F) or more for more than 10 minutes with an engine speed of 2000 rpm or more. (PM regeneration could not operate.)
      

7. Take a snapshot with the tester when the Exhaust Temperature B1S1 and Exhaust Temperature B1S2 rise and become stable.
   

   HINT:

   Detailed graphs can be displayed by transferring the stored snapshot data from the tester to a PC (personal computer) with Intelligent Viewer installed.

8. Enter the following menus: Powertrain / Engine and ECT / Data List / DPNR/DPF Status Reju(PM).
   

9. Confirm the DPNR/DPF Status Reju(PM).
   

   HINT:

   1. During the performing PM regeneration, the DPNR/DPF Status Reju(PM) displays "Operate".
      
   2. If the PM regeneration is stopped (DPNR/DPF Status Reju(PM) displays "Ready") because the exhaust gas temperature is reduced due to the driving conditions, the PM regeneration is restarted automatically (DPNR/DPF Status Reju(PM) displays "Operate") when the exhaust gas temperature is recuperated by high engine speed driving.
      
   3. If the cumulative time of DPNR/DPF Status Reju(PM) at "Operate" exceeds 35 minutes, the Active Test stops forcibly. In this case, the DPNR/DPF Status Reju(PM) turns to "Ready" and the Active Test / Activate the DPF Rejuvenate (PM) will be prohibited forcibly for one hour during engine running. Thus, perform the Active Test again after running the engine for one hour.
      
   
   

   DPNR/DPF Status Reju(PM) (Reference)  

   Tester Display	Status
   Standby	Before entering the "Activate the DPF Rejuvenate (PM)"
   Ready	Enabling condition for "Activate the DPF Rejuvenate (PM)" is not sufficient
   Operate	PM regeneration is performing. If "Activate the DPF Rejuvenate (PM)" is not finished completely, the status turns to "Ready". For example, the vehicle is idling for more than 3 minutes while the PM regeneration is performing, the exhaust gas temperature falls to outside of enabling condition and PM regeneration is stopped. If "Activate the DPF Rejuvenate (PM)" is finished completely, the status turns to "Compl".
   Compl	PM regeneration is completed (Amount of PM is 0 g)

10. Read the values of the Data List / Exhaust Temperature B1S2 in the Snapshot Review function.
    

    Standard:

    DPNR/DPF Status Reju(PM) is "Compl" and Exhaust Temperature B1S2 is 500°C (932°F) or more during PM regeneration.
    

OK	Go to step 21
NG	Go to step 19

1. Replace the exhaust manifold converter sub-assembly (Click here).
   

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Clear the DTCs (Click here).
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM) / Data List / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and DPNR/DPF Status Reju(PM).
   

   HINT:

   After clearing DTCs, immediately enter the Active Test / Activate the DPF Rejuvenate (PM), and then drive the vehicle.

5. Perform the Active Test then drive the vehicle at a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
   

   HINT:

   While the Active Test / Activate the DPF Rejuvenate (PM) is performing, the accelerator pedal opening angle should be kept as constant as possible.

6. Confirm that both Exhaust Temperature B1S1 and Exhaust Temperature B1S2 reach 250°C (482°F) or more and the DPNR/DPF Status Reju(PM) turns from "Ready" to "Operate".
   

   HINT:

   1. If the exhaust gas temperature does not reach the specified value, drive the vehicle again with a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
      
   2. Perform Active Test / Activate the DPF Rejuvenate(PM) until the DPNR/DPF Status Reju(PM) displays "Compl".
      

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Start the engine and turn the tester on.
   

3. Clear the DTCs (Click here).
   

4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM) / Data List / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and DPNR/DPF Status Reju(PM).
   

   HINT:

   After clearing DTCs, immediately enter the Active Test / Activate the DPF Rejuvenate (PM), and then drive the vehicle.

5. Perform the Active Test then drive the vehicle at a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
   

   HINT:

   While the Active Test / Activate the DPF Rejuvenate (PM) is performing, the accelerator pedal opening angle should be kept as constant as possible.

6. Confirm that both Exhaust Temperature B1S1 and Exhaust Temperature B1S2 reach 250°C (482°F) or more and the DPNR/DPF Status Reju(PM) turns from "Ready" to "Operate".
   

   HINT:

   1. If the exhaust gas temperature does not reach the specified value, drive the vehicle again with a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph).
      
   2. Perform Active Test / Activate the DPF Rejuvenate(PM) until the DPNR/DPF Status Reju(PM) displays "Compl".
      

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Start the engine and drive the vehicle until the engine coolant temperature reaches 75°C (167°F) or more.
   

4. Enter the following menus: Powertrain / Engine and ECT / Data List / Catalyst Differential Press.
   

5. Take a snapshot with the intelligent tester at an engine speed of 4000 rpm without load.
   

   HINT:

   1. When reading the values of Data List, confirm that PM regeneration is not activating (value of "After Injection Period" is 0) by entering the following menus: Powertrain / Engine and ECT / Data List / After Injection Period.
      If PM regeneration is activating (value of "After Injection Period" is not 0), drive the vehicle until the PM regeneration is complete (value of "After Injection Period" becomes 0).
      
   2. Detailed graphs can be displayed by transferring the stored snapshot from the tester to a PC (personal computer) with Intelligent Viewer installed.
      

   Standard:

   "Catalyst Differential Press before the first PM regeneration" - "Catalyst Differential Press after the second PM regeneration" is 0.1 or more.
   

   HINT:

   Reference Condition
   1. Catalyst Differential Press is less than 0.2 (value of normal DPF catalytic converter)
      
   2. Catalyst Differential Press is less than 0.15 (value of new DPF catalytic converter)
      

OK	Go to step 25
NG	Go to step 23

1. Replace the exhaust tail pipe assembly (DPF catalytic converter) (Click here).
   

NEXT

1. Clear the DPF deterioration record using the intelligent tester (Click here).
   

NEXT

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Clear the DTCs (Click here).
   

4. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
   

5. Drive the vehicle at a constant engine speed of 2000 rpm or more (shift position: 3rd) and a vehicle speed within 60 to 100 km/h (37 to 62 mph) for 5 minutes.
   

6. Enter the following menus: Powertrain / Engine and ECT / DTC.
   

7. Confirm that the DTC is not output again.
   

NEXT
END