HYBRID CONTROL SYSTEM, Diagnostic DTC:P0343-747

DTC Code DTC Name
P0343-747 Camshaft Position Sensor "A" Circuit High Input

DESCRIPTION

Refer to the description for DTC P0338-885 Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P0343 747 GI signal is not input to the MG ECU for 2 sec. or more while the engine is running.

  • Wire harness or connector

  • Inverter with converter assembly

  • Hybrid vehicle control ECU

  • ECM

  • Camshaft position sensor

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0338-885 Click here.

CAUTION / NOTICE / HINT

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

Tech Tips

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE


  1. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      None of the following DTCs are not output. A
      Any of the following DTCs are output. B
      DTC No. Relevant Diagnosis
      P0340 Camshaft Position Sensor Circuit Malfunction
      P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)
      P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)

    B

    GO TO DTC CHART Click here

    A

  2. CHECK DTC OUTPUT (HV)


    1. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    2. Check if DTCs are output.

      Result
      Result Proceed to
      None of the following DTCs are not output. A
      Any of the following DTCs are output. B
      DTC No. Relevant Diagnosis
      P0868-866, 894 Transmission Fluid Pressure Low
      P0A1B (all INF codes) *1 Drive Motor "A" Control Module

      Tech Tips


      • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic flowchart.

      • P0343-747 may be set due to a malfunction which also causes DTCs in the preceding table to be set. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.


    B

    GO TO DTC CHART Click here

    A

  3. CHECK DTC OUTPUT (HV)


    1. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    2. Check if DTCs are output.

      Result
      Result Proceed to
      P0343-886 is not output. A
      P0343-886 is output. B

    B

    CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR) Click here

    A

  4. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

    Note

    Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector cannot be pulled out.


    1. Check the connection of the low voltage connector of the inverter with converter assembly.

      OK
      The connector is connected securely and there are no contact problems.

      Tech Tips

      When connecting the connector, insert it with the locking lever in the raised position. Rotate the lever downward and make sure that the connector is pulled into its socket. When the locking lever is in its fully closed position, a click will be heard as its locking claws engage. After the click is heard, pull up on the connector to confirm that it is properly connected.


    NG

    CONNECT SECURELY

    OK

  5. CHECK HARNESS AND CONNECTOR (ECM - INVERTER WITH CONVERTER ASSEMBLY)

    CAUTION:

    Be sure to wear insulated gloves.


    1. A000THXE01

      Turn the power switch off.

    2. Remove the service plug grip Click here.

      Note

      After removing the service plug grip, do not turn the power switch on (READY) unless instructed by the repair manual because this may cause a malfunction.

    3. Disconnect the low voltage connector from the inverter with converter assembly.

    4. Disconnect connector A14 from the ECM.

    5. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) - A79-16 (GI) Power switch off Below 1 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) - A88-16 (GI) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) or A79-16 (GI) - Body ground and other terminals Power switch off 10 kΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) or A88-16 (GI) - Body ground and other terminals Power switch off 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    B

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR)


    1. Check the connections of the ECM connectors.

      OK
      The connectors are connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

  7. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - ECM)


    1. A000YDJE02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 Rear view of wire harness connector: (to ECM)

      Disconnect connector A77 from the hybrid vehicle control ECU.

    2. Disconnect connector A14 from the ECM.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      A77-14 (GI) - A14-19 (GO1) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      A77-14 (GI) or A14-19 (GO1) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (ECM - INVERTER WITH CONVERTER ASSEMBLY)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Turn the power switch off.

    2. Remove the service plug grip Click here.

      Note

      After removing the service plug grip, do not turn the power switch on (READY) unless instructed by the repair manual because this may cause a malfunction.

    3. A000THXE02

      Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) - A79-16 (GI) Power switch off Below 1 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) - A88-16 (GI) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) or A79-16 (GI) - Body ground and other terminals Power switch off 10 kΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A14-19 (GO1) or A88-16 (GI) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK INVERTER WITH CONVERTER ASSEMBLY (MG ECU)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

    2. A000YOWE02

      Measure the resistance according to the value(s) in the table below.

      Standard resistance
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-16 (GI) - A79-30 (GND1) Power switch off 10 kΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-16 (GI) - A88-30 (GND1) Power switch off 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    C

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    A

  10. CHECK HYBRID VEHICLE CONTROL ECU


    1. A00102JE02
      *1 Component without harness connected: (Hybrid Vehicle Control ECU)

      Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      A77-14 (GI) - A77-7 (E1) Power switch off 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here