EXHAUST GAS TEMPERATURE SENSOR ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT EXHAUST GAS TEMPERATURE SENSOR

   
   

   1. Stop the engine and wait for 30 seconds or more.

   2. Start the engine.

   3. Allow the engine to idle for 5 minutes.

   4. Connect the intelligent tester to the DLC3.

   5. Turn the tester on.

   6. Enter the following menus: Powertrain / Engine and ECT / Data List / Exhaust Temperature B1S1 and Exhaust Temperature B1S2.

   7. Read the values.

      Note

      Confirm that PM regeneration is not operating.

      Tech Tips

      
      

      • When read 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
      Exhaust Temperature B1S1 and Exhaust Temperature B1S2 display between 80 to 300°C (176 to 572°F).
      Difference between Exhaust Temperature B1S1 and Exhaust Temperature B1S2 should be within +/-100°C (212°F).

      Tech Tips

      For reference, results of "real-vehicle check" is as shown in the table below:

      Note

      In the table below, the values listed are reference. Do not depend solely on these reference values when deciding whether a part is faulty or not.

      Exhaust Temperature B1S1 and B1S2 (Result of Real-Vehicle Check)

      Condition	Exhaust Temperature B1S1	Exhaust Temperature B1S2
      Idling with warmed engine	Approximately 110°C (230°F)	Approximately 105°C (221°F)
      Approximately 3000 rpm without load	Approximately 155°C (311°F)	Approximately 135°C (275°F)
      Approximately 4500rpm without load	Approximately 205°C (401°F)	Approximately 185°C (365°F)

      If the result is not as specified, replace the exhaust gas temperature sensor B1S1 and B1S2.