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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE)- Freeze Frame / History Data & Diagnostic Codes >> Hybrid Control System >> DTC P0343-747: Camshaft Position Sensor "A" Circuit High Input [02/2014 - 11/2016] >> Procedure

DTC P0343-747: Camshaft Position Sensor "A" Circuit High Input [02/2014 - 11/2016]: 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 for DTCs.

      Powertrain > Engine and ECT > Trouble Codes 

      Result Proceed to
      SFI system DTCs are not output. A
      Any of the following DTCs are also output. B
      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.

    Result: 

    B 

    GO TO DTC CHART (SFI SYSTEM): 

    Refer to DIAGNOSTIC TROUBLE CODE CHART [02/2014 - 08/2014] .

    Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2014 - 11/2015] .

    Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2015 - 11/2016] .

    Result: 

    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 for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Result Proceed to
      None of the following DTCs are output. A
      Any of the following DTCs are also 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.

    Result: 

    B 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM): 

    Refer to DIAGNOSTIC TROUBLE CODE CHART [02/2014 - 11/2015] .

    Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2015 - 11/2016] .

    Result: 

    A 

    Go to next step 

  3. 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 manual because this may cause a malfunction.

    2. Check the connection condition of the low voltage connector of the inverter with converter assembly and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [02/2014 - ] .

      GTY430314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.

      OK

      - The connector is connected securely.

      - The terminals are not deformed and are connected securely.

      - No water or foreign matter in the connector.

      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

      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.

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    Go to next step 

  4. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR) 
    1. Check the connector connections and contact pressure of the relevant terminals for the ECM connectors.

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [02/2014 - ] .

      GTY430313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      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.

      OK

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

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    Go to next step 

  5. 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 manual because this may cause a malfunction.

    2. Disconnect the A46 inverter with converter assembly connector.
    3. Disconnect the A43 ECM connector.
    4. Connect the cable to the negative (-) auxiliary battery terminal.
    5. Turn the power switch on (IG).
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      A46-1 (GI) - Body ground Power switch on (IG) Below 1 V
      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.

      GTY593640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Inverter with Converter Assembly)
      *b Front view of wire harness connector
      (to ECM)
    7. Turn the power switch off.
    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      Tester Connection Condition Specified Condition
      A46-1 (GI) - A43-22 (GO2) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      A46-1 (GI) or A43-22 (GO2) - Body ground and other terminals Power switch off 10 kΩ or higher
    9. Disconnect the cable from the negative (-) auxiliary battery terminal.
    10. Reconnect the A43 ECM connector.
    11. Reconnect the A46 inverter with converter assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    Go to next step 

  6. CHECK ECM 
    1. Disconnect the C1 and A43 ECM connectors.
    2. Measure the resistance according to the value(s) in the table below.
      GTY567057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (ECM)      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      A43-22 (GO2) - C1-46 (E1) Power switch off 10 kΩ or higher
    3. Reconnect the C1 and A43 ECM connectors.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS. 

    Refer to DTC CHECK / CLEAR [02/2014 - 11/2016] .

    Result: 

    NG 

    REPLACE ECM. 

    Refer to COMPONENTS [02/2014 - 11/2016] .

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