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Home >> Toyota >> 2012 >> Prius V >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System [Diagnostic Codes (P0069-273 - P0A78-113)] >> Hybrid Control System >> DTC P0343-747: Camshaft Position Sensor "A" Circuit High Input >> Procedure

DTC P0343-747: Camshaft Position Sensor "A" Circuit High Input: Procedure

  1. CHECK DTC OUTPUT (ENGINE AND ECT) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Enter the following menus: Powertrain / Engine and ECT/ Trouble Codes.
    4. Check if DTCs are output.

      Result

      Result Proceed to
      SFI system 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)
    5. Turn the power switch off.

    B → See step   12 

    A: Go to next step 

  2. CHECK DTC OUTPUT (HYBRID CONTROL) 
    1. Connect the Techstream 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
      None of the following DTCs are output. A
      Any of the following DTCs are output. B
      DTC No. Relevant Diagnosis
      P0A1B (all INF codes)*1 Drive Motor "A" Control Module

      HINT: 

      • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
      • P0343-747 may be set due to a malfunction which also causes the 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.
    5. Turn the power switch off.

    B → See step   13 

    A: Go to next step 

  3. CHECK DTC OUTPUT (HYBRID CONTROL) 
    1. Connect the Techstream 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 is not output. A
      P0340-886 is also output. B
    5. Turn the power switch off.

    B → See step   7 

    A: Go to next step 

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

    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 information because this may cause a malfunction.

      NOTE:

      Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector does not pull out.

      Fig 1: Identifying Connector With Lock Lever
      GTY215911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. 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.

      HINT: 

      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: Go to next step 

  5. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR) See step   2 

    NG → CONNECT SECURELY 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - ECM) 
    WARNING:

    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 information because this may cause a malfunction.

    2. Disconnect the low voltage connector A59 from the inverter with converter assembly.
    3. Disconnect connector D28 from the ECM.
    4. Disconnect connector A21 from the power management control ECU.
    5. Connect the cable to the negative (-) auxiliary battery terminal.
    6. Turn the power switch on (IG).
    7. Measure the voltage according to the value(s) in the table below.
      Fig 2: Checking Harness And Connector (Inverter With Converter Assembly - ECM)
      GTY333692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      A59-29 (GI) - Body ground Power switch on (IG) Below 1 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Inverter with Converter Assembly)
      *b Front view of wire harness connector
      (to ECM)
      NOTE:

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

    8. Turn the power switch off.
    9. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      Tester Connection Switch Condition Specified Condition
      A59-29 (GI) - D28-48 (G2O) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Switch Condition Specified Condition
      A59-29 (GI) or D28-48 (G2O) - Body ground and other terminals Power switch off 10 kΩ or higher
    10. Disconnect the cable from the negative (-) auxiliary battery terminal.
    11. Connect the power management control ECU connector.
    12. Connect the ECM connector.
    13. Connect the inverter with converter assembly connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   15 

  7. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR) See step   2 

    NG → CONNECT SECURELY 

    OK: Go to next step 

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

    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 information because this may cause a malfunction.

    2. Disconnect the low voltage connector A59 from the inverter with converter assembly.
    3. Disconnect connector D28 from the ECM.
    4. Disconnect connector A21 from the power management control ECU.
    5. Measure the resistance according to the value(s) in the table below.
      Fig 3: Checking Harness And Connector (Inverter With Converter Assembly - ECM)
      GTY333692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance (Check for Open)

      Tester Connection Switch Condition Specified Condition
      A59-29 (GI) - D28-48 (G2O) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Switch Condition Specified Condition
      A59-29 (GI) or D28-48 (G2O) - Body ground and other terminals Power switch off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Inverter with Converter Assembly)
      *b Front view of wire harness connector
      (to ECM)
    6. Connect the power management control ECU connector.
    7. Connect the ECM connector.
    8. Connect the inverter with converter assembly connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  9. CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU) 
    WARNING:

    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 information because this may cause a malfunction.

    2. Disconnect connector D28 from the ECM.
    3. Disconnect connector A21 from the power management control ECU.
    4. Disconnect the low voltage connector A59 from the inverter with converter assembly.
    5. Measure the resistance according to the value(s) in the table below.
      Fig 4: Checking Harness And Connector (ECM - Power Management Control ECU)
      GTY327192Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance (Check for Open)

      Tester Connection Switch Condition Specified Condition
      D28-48 (G2O) - A21-16 (GI) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Switch Condition Specified Condition
      D28-48 (G2O) or A21-16 (GI) - Body ground and other terminals Power switch off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to ECM)
      *b Rear view of wire harness connector
      (to Power Management Control ECU)
    6. Connect the inverter with converter assembly connector.
    7. Connect the power management control ECU connector.
    8. Connect the ECM connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  10. CHECK INVERTER WITH CONVERTER ASSEMBLY 
    WARNING:

    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 information because this may cause a malfunction.

    2. Disconnect the low voltage connector A59 from the inverter with converter assembly.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 5: Measuring Resistance Of Inverter With Converter Assembly
      GTY325713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A59-29 (GI) - A59-28 (GND1) Power switch off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Inverter with Converter Assembly)
    4. Connect the inverter with converter assembly connector.

    NG → See step   15 

    OK: Go to next step 

  11. CHECK POWER MANAGEMENT CONTROL ECU 
    1. Disconnect connectors A21 and L5 from the power management control ECU.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 6: Checking Resistance Of Power Management Control ECU
      GTY331775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A21-16 (GI) - L5-6 (E1) Power switch off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Power Management Control ECU)
    3. Connect the power management control ECU connector.

    NG → See step   16 

    OK → See step   14 

  12. GO TO DTC CHART (SFI SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  13. GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  14. REPLACE ECM. Refer to  COMPONENTS 
  15. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  COMPONENTS 
  16. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  COMPONENTS 
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