AUTOMATIC TRANSMISSION SYSTEM(for 2GR-FSE), Diagnostic DTC:P2765, P2767

DTC Code DTC Name
P2765 Input / Turbine Speed Sensor "B" Circuit
P2767 Input / Turbine Speed Sensor "B" Circuit No Signal

DESCRIPTION

The transmission revolution sensor (NC3) detects the automatic transmission No. 3 clutch drum rotation speed.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2765 Input / Turbine Speed Sensor "B" Circuit

  1. Diagnosis Condition


    • With the park/neutral position switch assembly and transmission revolution sensor (NC3) in normal condition, output wheel speed is 1000 rpm or more (when changing to 7th gear, output wheel speed is 1400 rpm or more)

  2. Malfunction Status


    • Transmission revolution sensor (NC3) output voltage is less than 0.1 V, or 1.9 V or more

  3. Malfunction Time


    • 4.5 seconds

  4. Other


    • 1 trip detection logic

  • Transmission revolution sensor (NC3)

  • Transmission wire

  • Harness and connector

  • TCM

 Comes on DTC stored
P2767 Input / Turbine Speed Sensor "B" Circuit No Signal

  1. Diagnosis Condition


    • With the park/neutral position switch assembly and transmission revolution sensor (NC3) in normal condition, output wheel speed is 1000 rpm or more (when changing to 7th gear, output wheel speed is 1400 rpm or more)

  2. Malfunction Status


    • Transmission revolution sensor (NC3) sensor value is less than 300 rpm

  3. Malfunction Time


    • 5 seconds

  4. Other


    • 1 trip detection logic

  • Transmission revolution sensor (NC3)

  • Transmission wire

  • Harness and connector

  • TCM

 Comes on DTC stored

MONITOR DESCRIPTION

The NT terminal of the TCM detects a pulse signal from the transmission revolution sensor (NT) (input RPM). The TCM calculates gear shifts comparing the transmission revolution sensor (NT) with the transmission revolution sensor (NC3 and SP2).

While the vehicle is operating in 3rd, 4th, 5th, 6th or 7th gear with the shift lever in D, if the No. 3 clutch drum revolution (speed) is less than 300 rpm*1 although the output shaft revolution (speed) is more than 1,000 rpm*2, the TCM determines that there is a malfunction, illuminates the MIL and stores the DTC.

*1: Pulse is not output or is irregularly output.

*2: The vehicle speed is 40 km/h (25 mph) or more.

WIRING DIAGRAM

A001J1AE21
*1 Transmission Revolution Sensor NC3
*2 Transmission Wire

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced.

Click here


  1. DATA LIST

    Note

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

    Tech Tips

    Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.


    1. Warm up the engine.

    2. Turn the engine switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / ECT / Data List / SPD (NC3).

    7. According to the display on the GTS, read the Data List.


      Powertrain > ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      SPD (NC3) No. 3 clutch drum speed

      Min.: 0 rpm

      Max.: 12750 rpm

      • 0 rpm: 2nd or 8th gear

      • above 0 rpm: 1st, or 3rd to 7th gear

      		 Data is displayed in increments of 50 rpm

      Powertrain > ECT > Data List
      Tester Display
      SPD (NC3)

      Tech Tips


      • SPD (NC3) is always 0 while driving: Open or short in the sensor or circuit.

      • SPD (NC3) is always more than 0 and less than 300 rpm while driving the vehicle at 50 km/h (31 mph) or more: Sensor malfunction, improper installation, or intermittent connection malfunction of the circuit.

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / ECT / Data List / SPD (NC3), NC3 Sensor Voltage.

    5. According to the display on the GTS, read the Data List.


      Powertrain > ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      SPD (NC3) No. 3 clutch drum speed

      Min.: 0 rpm

      Max.: 12750 rpm

      • 0 rpm: 2nd or 8th gear

      • above 0 rpm: 1st, or 3rd to 7th gear

      		 Data is displayed in increments of 50 rpm
      NC3 Sensor Voltage NC3 Sensor Voltage

      Min.: 0 V

      Max.: 5 V

      		 Idling: 0.1 to 1.9 V -

      Powertrain > ECT > Data List
      Tester Display
      SPD (NC3)
      NC3 Sensor Voltage
      Result
      Result Proceed to
      Data List value is within the normal condition A
      Data List value is not within the normal condition B

    A

    GO TO STEP 5 Click here

    B

  2. INSPECT TRANSMISSION REVOLUTION SENSOR (NC3 TERMINAL)


    1. A001KHRC14
      *a

      Front view of wire harness connector

      (to Transmission Wire)

      Disconnect the F73 transmission wire connector.

    2. Turn the engine switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F73-11 (NC3B) - Body ground Engine switch on (IG) 11 to 14 V

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F73-12 (NC3O) - Body ground Always 99 to 101 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM) Click here

    OK

  3. INSPECT TRANSMISSION WIRE (TRANSMISSION REVOLUTION SENSOR (NC3))


    1. A001LBVC03
      *a

      Front view of wire harness connector

      (to transmission revolution sensor NC3)
      *b

      Component without harness connected

      (Transmission Wire)

      Disconnect the transmission revolution sensor (NC3) connector.

      Click here

    2. Disconnect the transmission wire connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      Terminal 1 of the transmission revolution sensor (NC3) connector - 11 (NC3B) Always Below 1 Ω
      Terminal 2 of the transmission revolution sensor (NC3) connector - 12 (NC3O) Always Below 1 Ω
      Terminal 1 of the transmission revolution sensor (NC3) connector or 11 (NC3B) - Body ground Always 10 kΩ or higher
      Terminal 2 of the transmission revolution sensor (NC3) connector or 12 (NC3O) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TRANSMISSION REVOLUTION SENSOR (NC3) Click here

    NG

    REPAIR OR REPLACE TRANSMISSION WIRE

  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)


    1. Disconnect the F73 transmission wire connector.

    2. Disconnect the F71 TCM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F73-11 (NC3B) - F71-19 (NC3B) Always Below 1 Ω
      F73-12 (NC3O) - F71-18 (NC3O) Always Below 1 Ω
      F73-11 (NC3B) or F71-19 (NC3B) - Body ground Always 10 kΩ or higher
      F73-12 (NC3O) or F71-18 (NC3O) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE TCM


    1. Replace the TCM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM A/T CODE REGISTRATION Click here