HYBRID CONTROL SYSTEM, Diagnostic DTC:P0340-886

DTC Code DTC Name
P0340-886 Camshaft Position Sensor "A" Circuit

DESCRIPTION

The power management control ECU compares the engine speed sent from the ECM via CAN communication and the engine speed that is indicated by pulses sent from the ECM. If the pulse input is not normal, the power management control ECU stores this DTC.

DTC No. INF Code DTC Detection Condition Trouble Area
P0340 886 Malfunction in the engine speed sensor (GI signal) circuit

  • Wire harness or connector

  • Inverter with converter assembly

  • ECM

  • Power management control ECU

WIRING DIAGRAM

B002BXKE09

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 removing 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 Click here.

    Tech Tips

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

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Click here.

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P0340-886 only is output. A
      P0343-747 is also output. B

    5. Turn the power switch off.


    B

    CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU, INVERTER WITH CONVERTER) Click here

    A

  2. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR)


    1. A000SZ0

      Check the connector connections and contact pressure of the relevant terminals for the ECM connectors Click here.

      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.

      OK
      The connectors are connected securely and there are no contact pressure 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

  3. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)


    1. B002B9CE01
      Text in Illustration
      *A for LHD
      *B for RHD

      Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors Click here.

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

    NG

    CONNECT SECURELY

    OK

  4. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM)


    1. Connect an oscilloscope between the power management control ECU terminals specified in the table below.

    2. Turn the power switch on (READY).

    3. B002BRBE02
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      Measure the waveform.

      Item Content
      Terminal A35-19 (GI) - N91-6 (E1)
      Equipment Setting 5 V/DIV., 20 ms./DIV.
      Condition Power switch on (READY) with engine running
      Result
      Result Proceed to
      Normal A
      Waveform is flat, and is stuck on the +B side. B
      Waveform is flat, and is stuck on the GND side. C

    4. Turn the power switch off.


    B

    CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU) Click here

    C

    CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU, INVERTER WITH CONVERTER) Click here

    A

  5. CHECK FOR INTERMITTENT PROBLEMS

    Click here


    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

  6. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU)

    CAUTION:

    Be sure to wear insulated gloves.


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

      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.

    2. Disconnect the connector from the ECM.

    3. Disconnect connector A38 from the inverter with converter assembly (for LHD).

    4. Disconnect connector A74 from the inverter with converter assembly (for RHD).

    5. Connect the cable to the negative (-) auxiliary battery terminal.

    6. Turn the power switch on (IG).

    7. B002BM8E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A20-28 (G2O) - Body ground Power switch on (IG) 11 to 14 V

      Note

      Turning the power switch on (IG) with the ECM connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    8. Turn the power switch off.

    9. Disconnect the cable from the negative (-) auxiliary battery terminal.

    10. Connect the inverter with converter assembly connector.

    11. Connect the ECM connector.


    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU, INVERTER WITH CONVERTER)

    CAUTION:

    Be sure to wear insulated gloves.


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

      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.

    2. Disconnect the connector from the ECM.

    3. Disconnect the connector from the power management control ECU.

    4. Disconnect connector A38 from the inverter with converter assembly (for LHD).

    5. Disconnect connector A74 from the inverter with converter assembly (for RHD).

    6. Connect the cable to the negative (-) auxiliary battery terminal.

    7. Turn the power switch on (IG).

    8. B002BYDE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)
      *b

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A20-28 (G2O) or A35-19 (GI) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the inverter with converter assembly connector, power management control ECU connector and ECM connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    9. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A20-28 (G2O) or A35-19 (GI)- Body ground Power switch off 10 kΩ or higher

    11. Disconnect the cable from the negative (-) auxiliary battery terminal.

    12. Connect the ECM connector.

    13. Connect the power management control ECU connector.

    14. Connect the inverter with converter assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK POWER MANAGEMENT CONTROL ECU


    1. Disconnect all the connectors from the power management control ECU.

    2. B002BLLE02
      Text in Illustration
      *a

      Component without harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A35-19 (GI) - N91-6 (E1) Power switch off 10 kΩ or higher

    3. Connect the power management control ECU connectors.


    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    OK

  9. CHECK INVERTER WITH CONVERTER ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves.


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

      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.

    2. Disconnect the connector from the inverter with converter assembly.

    3. B002BGZE02
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Component without harness connected

      (Inverter with Converter Assembly)

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

      Standard Resistance
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-16 (GI) - A38-30 (GND1) Power switch off 10 kΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-16 (GI) - A74-30 (GND1) Power switch off 10 kΩ or higher

    4. Connect the inverter with converter assembly connector.


    OK

    REPLACE ECM Click here

    NG

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here