DTC Check/Clear

1. CHECK DTC (HV ECU) 
   1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
   2. Turn the power switch ON (IG) and turn the hand-held tester or the OBD II scan tool ON.
   3. Using the hand-held tester or the OBD II scan tool, check the DTCs and freeze frame data and then write them down.

      For the hand-held tester, enter the following menus: DIAGNOSIS / OBD/MOBD / HV ECU / DTC INFO / CURRENT CODES.

      For the OBD II scan tool, see its instruction manual.

   4. See DIAGNOSTIC TROUBLE CODE CHART  to confirm the details of the DTCs.
   Fig 1: Connecting Hand-Held Tester To DLC3

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2. CHECK FREEZE FRAME DATA AND INFORMATION 
   1. If a DTC is present, select that DTC in order to display its freeze frame data.
      Fig 2: Selecting DTC In Order To Display Its Freeze Frame Data

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   2. Read freeze frame data recorded when the DTC was set.
      NOTE: An information code (INF code) is displayed in one of the INFORMATION lines 1 to 5. Check the details by following the procedures in the following steps.

      HINT:

      In the case shown in the illustration, refer to troubleshooting for DTC P3140 and INF code 350.

      Fig 3: Locating DTC P3140 And INF Code 350

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Read the information.
   1. Select the item that has an INF code from among INFORMATION 1 to 5 on the freeze frame data screen.
   2. Press ENTER.
      Fig 4: Locating Information On Freeze Frame Data Screen

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   3. Information is displayed as shown in the figure.
   Fig 5: Information List

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3. CHECK DTC (SYSTEMS OTHER THAN HV ECU) 

   HINT:

   The HV control ECU maintains mutual communication with the computers, including the ECM, battery ECU, skid control ECU, power steering ECU and others. Therefore, if the HV control ECU outputs a warning, it is necessary to check and record the DTCs of all the systems.

   1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
   2. Turn the power switch ON (IG) and turn the hand-held tester or the OBD II scan tool ON.
   3. For the hand-held tester, enter the following menus: DIAGNOSIS / OBD/MOBD / CODES (All).

      For the OBD II scan tool, see its instruction manual.

   4. If DTCs are present, check the relevant systems.

   HINT:

   If DTCs for the CAN communication system are present in addition to other DTCs, first troubleshoot and repair any malfunctions in the CAN communication (see CAN COMMUNICATION SYSTEM - DIAGNOSIS ).

4. CLEAR DTC 

1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
2. Turn the power switch ON (IG) and turn the hand-held tester or the OBD II scan tool ON.
3. Check that the shift position is in the P position.
4. Clear DTCs and freeze frame data with the hand-held tester or the OBD II scan tool.

For the hand-held tester:

1. Enter the following menus: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CLEAR CODES.
2. Press YES.

For the OBD II scan tool, see its instruction manual.