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DTC Check / Clear

  1. CMDTC SELF TEST 
    1. Connect the Techstream to the DLC-2.
    2. After the vehicle is identified, select the following items from the initialization screen of the Techstream.
      1. Select "Self Test".
      2. Select "All CMDTCs".
    3. Verify the DTC according to the directions on the screen.
      • If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection after recording the freeze frame data.
    4. After completion of repairs, clear all DTCs stored in the engine stop and start ECU.
  2. ODDTC SELF TEST 
    1. Connect the Techstream to the DLC-2.
    2. After the vehicle is identified, select the following items from the initialization screen of the Techstream.
      1. Select "Self Test".
      2. Select "Modules".
      3. Select "SSU".
    3. Verify the DTC according to the directions on the screen.
      • If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection after recording the freeze frame data.
    4. After completion of repairs, clear all DTCs stored in the engine stop and start ECU.
  3. Freeze Frame Data 

    HINT: 

    • The engine stop and start ECU stores the following two types of freeze frame data (vehicle information) when a DTC is detected and displays them in the Techstream.
      • Vehicle information detected by engine stop and start ECU
      • Vehicle information detected by combination meter and received by engine stop and start ECU via CAN communication
    • The data for all DTCs currently detected is stored.
    Freeze frame data item Unit Data contents Data read/use method Corresponding data monitor items
    Ambient Air Temperature °C Ambient temperature Not applicable Not applicable
    Accelerator Pedal Position Status Accelerator Pedal Off/Under20%/Over20%/FAIL Accelerator pedal position status Not applicable Not applicable
    Configuration Status Config Complete/Not Configured/Config Error Combination meter configuration status Not applicable Not applicable
    Engine Coolant Temperature Status Under 0 degrees C/0 - Under 80 degrees C/Over 80 degrees C/FAIL Engine coolant temperature status Not applicable Not applicable
    Times Since Ignition Switch ON sec*
    *: The seconds may be indicated after the decimal point.    		 Elapsed time since ignition was switched ON (engine off or on)
    HINT: 
    • The combination meter records the elapsed time since the ignition was switched ON (engine off or on).
    • The engine stop and start ECU constantly receives the elapsed time since the ignition was switched ON (engine off or on) sent via CAN communication from the combination meter.
    • If a DTC is detected, the engine stop and start ECU records the elapsed time since the ignition was switched ON (engine off or on) when the DTC was detected, and it is displayed in the Techstream.
    		 Not applicable
    Power Mode Key State Key Out/Key Recently Out (Position 0)/Accessory (Position 1)/Post Ignition (Position 2)/Ignition On (Position 2)/Running (Position 2)/Running - Starting In Progress (Position 2)
    • Key Out: Ignition switched off
    • Key Recently Out (Position 0): Elapsed time within 3 s since ignition was switched off
    • Accessory (Position 1): Ignition is switched to ACC
    • Post Ignition (Position 2): Elapsed time within 3 s since ignition was switched ON (engine off or on)
    • Ignition On (Position 2): Ignition switched ON (engine off)
    • Running (Position 2): Ignition switched ON (engine on)
    • Running - Starting In Progress (Position 2): Cranking condition
    • The engine stop and start ECU constantly receives the ignition switch status sent via CAN communication from the combination meter.
    • If a DTC is detected, the engine stop and start ECU records the ignition switch status when the DTC was detected, and it is displayed in the Techstream.
    		 Not applicable
    Engine RPM Status Engine Stop/Under1500rpm/Over1500rpm/FAIL Engine speed status
    • The engine stop and start ECU constantly receives the engine speed sent via CAN communication from the combination meter.
    • If a DTC is detected, the engine stop and start ECU records the engine speed when the DTC was detected, and it is displayed in the Techstream.
    		 Tachometer*
    *: Combination meter PID
    Refer to DATA LIST / ACTIVE TEST
    Shift Position Status P/N / D / R / FAIL Selector lever position status
    • The engine stop and start ECU constantly receives the selector lever position sent via CAN communication from the combination meter.
    • If a DTC is detected, the engine stop and start ECU records the selector lever position when the DTC was detected, and it is displayed in the Techstream.
    		 Not applicable
    Total Distance km Accumulated total traveled distance from completion of vehicle until engine stop and start ECU detects DTC (Odometer value in combination meter) The total traveled distance from which the engine stop and start ECU detects DTCs to the present can be calculated by performing the following procedure.
    1. Verify the odometer value in the combination meter.
    2. Verify the freeze frame data item Total Distance.
    3. Subtract 2 from 1.
    		 Not applicable
    Total Time day Accumulated total elapsed time since vehicle completion until engine stop and start ECU detects a DTC
    HINT: 
    • When the ROOM fuse is removed, and the ignition is switched off, the time is not included in the elapsed time.
    		 The elapsed time from which the engine stop and start ECU detects DTCs to the present can be calculated by performing the following procedure.
    1. Verify the combination meter PID item Total Time.
    2. Verify the freeze frame data item Total Time.
    3. Subtract 2 from 1.
    		 Total Time*
    *: Combination meter PID
    Refer to DATA LIST / ACTIVE TEST
    Transmitter Number of Low Voltage Initial/No. 1/No. 2/No. 3/No. 4/No. 5/No. 6 Registration number of the door control transmitter If the engine stop and start ECU detects DTC B13D3:16 (Low transmitter battery voltage), inspect the door control transmitter in which the malfunction is occurring using the following procedure to display the registration number of the door control transmitter that was operated.
    1. Verify the registration number of the door control transmitter in the freeze frame data.
    2. Display the engine stop and start ECU PID item Transmitter Number which is received on RF Communication and inspect the battery voltage of the door control transmitter having the same registration number as the recorded door control transmitter registration number.
    		 Not applicable
    Module Supply Voltage (+B2) V Engine stop and start ECU power supply voltage Not applicable Module Supply Voltage (+B2)
    Module Supply Voltage (+B1) V Engine stop and start ECU power supply voltage (ROOM fuse) Not applicable Module Supply Voltage (+B1)
    Vehicle Speed Status Stop/0-10km/h/Over10km/h/FAIL Vehicle speed status
    • The engine stop and start ECU constantly receives the vehicle speed sent via CAN communication from the combination meter.
    • If a DTC is detected, the engine stop and start ECU records the vehicle speed when the DTC was detected, and it is displayed in the Techstream.
    		 Speedometer*
    *: Combination meter PID
    Refer to DATA LIST / ACTIVE TEST
  4. CMDTC MEMORY CLEARING PROCEDURE 
    1. Connect the Techstream to the DLC-2.
    2. After the vehicle is identified, select the following items from the initialization screen of the Techstream.
      1. Select "Self Test".
      2. Select "All CMDTCs".
    3. Verify the DTC according to the directions on the screen.
    4. Press the clear button on the DTC screen to clear the DTC.
    5. Switch the ignition off.
    6. Switch the ignition ON (engine off or on) and wait for 5 s or more.
    7. Perform DTC inspection.
    8. Verify that no DTCs are displayed.
  5. ODDTC MEMORY CLEARING PROCEDURE 
    1. Connect the Techstream to the DLC-2.
    2. After the vehicle is identified, select the following items from the initialization screen of the Techstream.
      1. Select "Self Test".
      2. Select "Modules".
      3. Select "SSU".
    3. Verify the DTC according to the directions on the screen.
    4. Press the clear button on the DTC screen to clear the DTC.
    5. Switch the ignition off.
    6. Switch the ignition ON (engine off or on) and wait for 5 s or more.
    7. Perform DTC inspection.
    8. Verify that no DTCs are displayed.
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