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Home >> Toyota >> 2015 >> Avalon Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes - (Hybrid) (3 Of 8) >> Hybrid Control System >> DTC P0340-886: Camshaft Position Sensor "A" Circuit [10/2015 - ] >> Procedure

DTC P0340-886: Camshaft Position Sensor "A" Circuit [10/2015 - ]: Procedure

  1. 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.

      Result

      Result Proceed to
      P0340-886 only is output. A
      P0343-747 is also output. B
    5. Turn the power switch off.

    B 

    See step  7

    A 

    See step  2

  2. 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 [10/2014 - ] ).
      GTY319201Courtesy 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.

    NG 

    CONNECT SECURELY 

    OK 

    See step  3

  3. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR) 
    1. Check the connector connections and contact pressure of the relevant terminals for the hybrid vehicle control ECU assembly connectors (Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [10/2014 - ] ).
      GTY372074Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

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

    NG 

    CONNECT SECURELY 

    OK 

    See step  4

  4. CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (CHECK WAVEFORM) 
    1. Connect an oscilloscope between the hybrid vehicle control ECU assembly terminals specified in the table below.
    2. Turn the power switch on (READY).
    3. Measure the waveform.
      GTY605470Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Hybrid Vehicle Control ECU Assembly)
      Item Content
      Terminal A67-10 (GI) - D135-6 (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 

    See step  6

    C 

    See step  7

    A 

    See step  5

  5. CHECK FOR INTERMITTENT PROBLEMS 

    (Refer to CHECK FOR INTERMITTENT PROBLEMS [10/2014 - ] )

    OK 

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 

    (Refer to COMPONENTS [10/2015 - ] )

    NG 

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

  6. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU 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 otherwise instructed because this may cause a malfunction.

    2. Disconnect the A18 ECM connector.
    3. Disconnect the A50 inverter with converter assembly 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.
      GTY606495Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to ECM)

      Standard Voltage

      Tester Connection Condition Specified Condition
      A18-60 (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.

    7. Turn the power switch off.
    8. Disconnect the cable from the negative (-) auxiliary battery terminal.
    9. Reconnect the A50 inverter with converter assembly connector.
    10. Reconnect the A18 ECM connector.

    OK 

    REPLACE ECM 

    (Refer to COMPONENTS [10/2014 - ] )

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  7. CHECK HARNESS AND CONNECTOR (ECM - HYBRID VEHICLE CONTROL ECU ASSEMBLY, INVERTER WITH CONVERTER) 
    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 otherwise instructed because this may cause a malfunction.

    2. Disconnect the A18 ECM connector.
    3. Disconnect the A67 hybrid vehicle control ECU assembly connector.
    4. Disconnect the A50 inverter with converter assembly connector.
    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.
      GTY572041Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to ECM)
      *b Rear view of wire harness connector
      (to Hybrid Vehicle Control ECU Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      A18-60 (G2O) or A67-10 (GI) - Body ground Power switch on (IG) Below 1 V
      NOTE:

      Turning the power switch on (IG) with the inverter with converter assembly connector, hybrid vehicle control ECU assembly connector and ECM connector 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

      Tester Connection Condition Specified Condition
      A18-60 (G2O) or A67-10 (GI) - Body ground Power switch off 10 kΩ or higher
    10. Disconnect the cable from the negative (-) auxiliary battery terminal.
    11. Reconnect the A18 ECM connector.
    12. Reconnect the A67 hybrid vehicle control ECU assembly connector.
    13. Reconnect the A50 inverter with converter assembly connector.

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK 

    See step  8

  8. CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY 
    1. Disconnect the A67, A68, D135 and D136 hybrid vehicle control ECU assembly connectors.
    2. Measure the resistance according to the value (s) in the table below.
      GTY606420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Hybrid Vehicle Control ECU Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A67-10 (GI) - D135-6 (E1) Power switch off 10 kΩ or higher
    3. Reconnect the A67, A68, D135 and D136 hybrid vehicle control ECU assembly connectors.

    NG 

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 

    (Refer to COMPONENTS [10/2015 - ] )

    OK 

    See step  9

  9. 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 otherwise instructed because this may cause a malfunction.

    2. Disconnect the A50 inverter with converter assembly connector.
    3. Measure the resistance according to the value (s) in the table below.
      GTY590131Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Inverter with Converter Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A50-1 (GI) - A50-10 (GND1) Power switch off 10 kΩ or higher
    4. Reconnect the A50 inverter with converter assembly connector.

    OK 

    REPLACE ECM 

    (Refer to COMPONENTS [10/2014 - ] )

    NG 

    REPLACE INVERTER WITH CONVERTER ASSEMBLY 

    (Refer to COMPONENTS [10/2014 - ] )

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