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Home >> Lexus >> 2010 >> LS 600hL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0338-885 - P0A1A-658) >> Hybrid Control System >> DTC P0711-883: Transmission Fluid Temperature Sensor Circuit Range / Performance >> Procedure

DTC P0711-883: Transmission Fluid Temperature Sensor Circuit Range / Performance: Procedure

  1. CHECK DTC OUTPUT (HV) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
    4. Check if DTCs are output.

      Result

      Result Proceed to
      P0711-883 only is output. A
      Any of the following DTCs are also output. B
      DTC No. Relevant Diagnosis
      P0710-855 Transmission Fluid Temperature Sensor "A" Circuit
      P0712-856 Transmission Fluid Temperature Sensor "A" Circuit Low Input
      P0713-857 Transmission Fluid Temperature Sensor "A" Circuit High Input

    B → See step   11 

    A: Go to next step 

  2. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) 
    1. Turn the power switch off.
    2. Check the connections of the hybrid vehicle control ECU connectors.

      OK

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

    NG → CONNECT SECURELY 

    OK: Go to next step 

  3. CHECK TRANSMISSION WIRE (TRANSMISSION FLUID TEMPERATURE SENSOR) 
    1. Turn the power switch off.
    2. Disconnect connectors E55 and A74 from the hybrid vehicle control ECU.
      Fig 1: Identifying Connectors E55 And A74 From Hybrid Vehicle Control ECU
      GTY143471Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      E55-33 (THO) - A74-5 (E2) 50°F (10°C) 5.0 to 8.0 kΩ
      E55-33 (THO) - A74-5 (E2) 230°F (110°C) 0.22 to 0.28 kΩ

    NG → See step   8 

    OK: Go to next step 

  4. CLEAR DTC 
    1. Turn the power switch on (IG).
    2. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
    3. Read and record the DTCs and freeze frame data.
    4. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
    5. Clear DTCs and freeze frame data.

    NEXT: Go to next step 

  5. READ VALUE USING TECHSTREAM (T/M OIL TEMPERATURE) 
    1. Select the following menu items: Powertrain / Hybrid Control / Data List / T/M Oil Temperature.
    2. Read the data list.
      Fig 2: Identifying Signal Waveform
      GTY125273Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      The T/M Oil Temperature value is within the normal range and does not fluctuate.

    NG → See step   13 

    OK: Go to next step 

  6. CHECK FOR INTERMITTENT PROBLEMS 
    1. Check for intermittent problems. Refer to CHECK FOR INTERMITTENT PROBLEMS .

    NG → REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

    OK: Go to next step 

  7. CHECK FLUID LEAKS 
    1. Check for fluid leaks from the hybrid vehicle transmission assembly. Refer to ON-VEHICLE INSPECTION .

      OK

      There are no fluid leaks.

    NG → See step   10 

    OK → See step   12 

  8. CHECK CONNECTOR CONNECTION CONDITION (TRANSMISSION WIRE CONNECTOR) 
    1. Check the connection of the transmission wire connector.

      OK

      The connector is connected securely and there are no contact problems.

    NG → CONNECT SECURELY 

    OK: Go to next step 

  9. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - TRANSMISSION WIRE) 
    1. Disconnect the transmission wire connector.
      Fig 3: Checking Harness And Connector (Hybrid Vehicle Control ECU Transmission Wire)
      GTY142961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the power switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Switch Condition Specified Condition
      E55-33 (THO) - Body ground Power switch on (IG) Below 1 V
      A74-5 (E2) - Body ground Power switch off Below 1 V
      NOTE:

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

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

      Standard resistance (Check for open)

      Tester Connection Switch Condition Specified Condition
      E55-33 (THO) - E61-9 (THO) Power switch off Below 1 Ω
      A74-5 (E2) - E61-3 (E) Power switch off Below 1 Ω

      Standard resistance (Check for short)

      Tester Connection Switch Condition Specified Condition
      E55-33 (THO) or E61-9 (THO) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   13 

  10. REPAIR OR REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY. Refer to  COMPONENTS 
  11. GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  12. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  COMPONENTS 
  13. REPLACE TRANSMISSION WIRE. Refer to  COMPONENTS