STOP AND START SYSTEM Stop and Start System does not Operate (During PM Regeneration)

DESCRIPTION

Check whether stop and start control is prohibited based on the PM regeneration conditions.

Tech Tips

Stop and start control is prohibited during PM regeneration.

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. According to the vehicle conditions displayed on the GTS, judge whether PM regeneration is being performed.

      Tech Tips

      Vehicle conditions during PM regeneration:


      • EGR is cut off and exhaust temperature is high

      • After injection continues while the engine is idling and exhaust temperature is high


      Powertrain > Engine and ECT > Data List
      Tester Display Measurement Item Type Range Normal Condition Diagnostic Note
      After Injection Period After injection period Calculated value by ECM Min.: 0 μs, Max.: 65535 μs Except during PM / NOx / S regeneration: 0 μs*

      During PM regeneration, acceleration and deceleration shock may increase slightly.

      Symptoms when out of range:

      Poor drivability, white smoke during PM regeneration.
      Actual EGR Valve Pos. EGR valve position Calculated from EGR valve opening position sensor Min.: 0%, Max.: 100% Idling after engine warmed up: 0 to 100%*

      • Fully open: 100%.

      • Fully closed: 0%.

      • Inspect while comparing to "Target EGR Valve Pos".

      • Check the valve movement via the Active Test.

      • Sometimes the malfunction only occurs around a certain temperature, so refer to the engine coolant temperature and outside temperature at the time the malfunction occurred.

      Tech Tips

      If the time of engine idling is long (approximately 20 minutes or more), EGR will be cut off. At this time, if the vehicle is driven in 4th gear between 90 and 100 km/h (56 and 62 mph) for 30 minutes, EGR resumes.

      Symptoms when out of range:


      • EGR valve stuck open: Poor start (engine does not stop), black smoke, white smoke, lack of power

      • EGR valve stuck closed: Increased turbo booster noise
      Exhaust Temperature B1S1 Exhaust gas temperature of NSR (NOx Storage Reduction) catalyst* Sensor output (exhaust gas temperature sensor B1S1) Min.: -40°C, Max.: 6513.5°C*

      • Idling after engine warmed-up:

        80 to 300°C (176 to 572°F)

      • During DPF catalyst regeneration:

        200 to 600°C (392 to 1112°F)*

      • If an open occurs in an exhaust temperature sensor circuit, 50°C (122°F)* is displayed on the GTS. (engine warmed up)

      • If a short occurs in an exhaust temperature sensor circuit, 950°C (1742°F)* is displayed on the GTS.

      Cause of Out of Range:


      • Exhaust gas temperature sensor B1S1

      • DPF catalyst deteriorated
      Exhaust Temperature B1S2 Exhaust gas temperature of DPF catalyst Sensor output (exhaust gas temperature sensor B1S2) Min.: -40°C, Max.: 6513.5°C*

      • Idling after engine warmed-up:

        80 to 300°C (176 to 572°F)

      • During DPF catalyst regeneration:

        500 to 750°C (932 to 1382°F)

      • If an open occurs in an exhaust temperature sensor circuit, 50°C (122°F)* is displayed on the GTS. (engine warmed up)

      • If a short occurs in an exhaust temperature sensor circuit, 950°C (1742°F)* is displayed on the GTS.

      Cause of Out of Range:


      • Exhaust gas temperature sensor B1S2

      • DPF catalyst deteriorated

      • *: for 1ND-TV w/ Glow Plug Controller


      Powertrain > Engine and ECT > Data List
      Tester Display
      After Injection Timing
      Actual EGR Valve Pos.
      Exhaust Temperature B1S1
      Exhaust Temperature B1S2
      Result
      Result Proceed to
      PM regeneration not being performed A
      PM regeneration being performed B

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    B

    END (DRIVE VEHICLE UNTIL PM REGENERATION IS COMPLETE)