LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2018 >> Prius Four >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Nickel Metal Hydride) - Diagnostic Codes (8 Of 9) >> HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY) >> DTC P1C6B-9F: Rear Motor Shutdown Stuck Off [12/2018 -] >> Procedure

DTC P1C6B-9F: Rear Motor Shutdown Stuck Off [12/2018 -]: Procedure

  1. CHECK CONNECTOR CONNECTION CONDITION (HYBRID MOTOR CONTROL INVERTER ASSEMBLY REAR CONNECTOR) 

    Refer to PROCEDURE - Step 8

    Result

    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

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) 

    Refer to PROCEDURE - Step 2

    Result

    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

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (SDNR VOLTAGE) 
    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 M53 hybrid motor control inverter assembly rear connector.
      GTY928211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the power switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.
      GTY901803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly Rear)

      Standard Voltage

      (M53)

      (M53)

      Tester Connection Switch Condition Specified Condition
      M53-4 (SDNR) - Body ground Power switch on (IG) Below 1 V
    5. Turn the power switch off.
    6. Reconnect the M53 hybrid motor control inverter assembly rear connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID MOTOR CONTROL INVERTER ASSEMBLY REAR. Refer to  REMOVAL [12/2018 - 07/2020]  , or refer to  REMOVAL [07/2020 -] 

    Result: 

    NG 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (HYBRID MOTOR CONTROL INVERTER ASSEMBLY REAR - 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 M53 hybrid motor control inverter assembly rear connector.
    3. Disconnect the C33 inverter with converter assembly connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      (M53, C33)

      (M53)

      (C33)

      Tester Connection Switch Condition Specified Condition
      M53-4 (SDNR) - C33-18 (SDNR) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      (M53, C33)

      (M53)

      (C33)

      Tester Connection Switch Condition Specified Condition
      M53-4 (SDNR) or C33-18 (SDNR) - Body ground and other terminals Power switch off 10 kΩ or higher
      GTY924631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Hybrid Motor Control Inverter Assembly Rear)
      *b Front view of wire harness connector
      (to Inverter with Converter Assembly)
    5. Reconnect the C33 inverter with converter assembly connector.
    6. Reconnect the M53 hybrid motor control inverter assembly rear connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS. Refer to  DTC CHECK / CLEAR [12/2018 -] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR