HYBRID CONTROL SYSTEM, Diagnostic DTC:P0340-886

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

DESCRIPTION

The power management control ECU (HV CPU) 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 (HV CPU) sets 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

  • Camshaft position sensor

  • Inverter with converter assembly

  • ECM

  • Power management control ECU

WIRING DIAGRAM

A003TWAE06

INSPECTION PROCEDURE

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.

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester 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
      DTC P0340-886 only is output. A
      DTC 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. A003TZT

      Check the connections of the ECM connectors.

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

    NG

    CONNECT SECURELY

    OK

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


    1. Check the connections of the power management control ECU connectors.

      A003TI1E01
      Text in Illustration
      *A for LHD *B for RHD
      OK
      The connectors are connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

  4. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM)


    1. Turn the power switch on (READY).

    2. A003TS8E02
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      Connect an oscilloscope between the power management control ECU terminals specified in the table below, and measure the waveform.

      Item Content
      Terminal A98-16 (GI) - E111-6 (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

    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


    1. Check for intermittent problems Click here.


    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

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


    1. Disconnect connector B31 from the ECM.

    2. Turn the power switch on (IG).

    3. A003T6AE03
      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
      B31-48 (G2O) - Body ground Power switch on (IG) 11 to 14 V

      Note

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

    4. Turn the power switch off.

    5. Connect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

  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 connector A105 from the inverter with converter assembly.

    3. Disconnect connector B31 from the ECM.

    4. Disconnect connector A98 from the power management control ECU.

    5. Turn the power switch on (IG).

    6. A003UXBE01
      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
      B31-48 (G2O) or A98-16 (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.

    7. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      B31-48 (G2O) or A98-16 (GI) - Body ground Power switch off 10 kΩ or higher

    9. Connect the power management control ECU connector.

    10. Connect the ECM connector.

    11. 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. A003UPBE10
      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 Condition Specified Condition
      A98-16 (GI) - E111-6 (E1) Always 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 connector A105 from the inverter with converter assembly.

    3. A003TGGE16
      Text in Illustration
      *a

      Component without harness connected

      (Inverter with Converter Assembly)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A105-29 (GI) - A105-28 (GND1) Power switch off 10 kΩ or higher

    4. Connect the inverter with converter assembly connector.


    NG

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    OK

    REPLACE ECM Click here