CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM(for 8NR-FTS), Diagnostic DTC:P071000

DTC Code DTC Name
P071000 Transmission Fluid Temperature Sensor "A" Circuit Range/Performance

DESCRIPTION

The CVT fluid temperature sensor converts the fluid temperature into a resistance value which is detected by the ECM.

The sensor resistance changes with the CVT fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies voltage to the temperature sensor through ECM terminal THO1 and calculates the fluid temperature based on the voltage signal.

Tip:

The CVT fluid temperature is likely to increase under conditions such as towing, climbing hills and in traffic.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P071000

Transmission Fluid Temperature Sensor "A" Circuit Range/Performance

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other

  1. DTC Detection Condition 1

  2. The intake air and engine coolant temperatures are more than -10°C (14°F) at engine start, and the vehicle is driven for over 18 minutes at 7 km (4.0 miles) or more.

  3. The CVT fluid temperature is below 20°C (68°F).

  4. 3 seconds

  5. 2-trip detection logic

  1. DTC Detection Condition 2

  2. The engine coolant temperature is less than 35°C (95°F) at engine start.

  3. The CVT fluid temperature is 100°C (212°F) or more.

  4. 10 seconds

  5. 2-trip detection logic

  • CVT fluid level

  • Continuously variable transaxle assembly (CVT fluid temperature sensor)

Comes on

DTC stored

SAE Code:

P0711

MONITOR DESCRIPTION

The CVT fluid temperature sensor converts the CVT fluid temperature to an electrical resistance value. Based on the resistance, the ECM determines the CVT fluid temperature and detects open or short circuits in the CVT fluid temperature circuit.

After driving the vehicle for a certain period, the CVT fluid temperature should increase. If the CVT fluid temperature remains below 20°C (68°F), the ECM interprets this as a fault and illuminates the MIL.

When the engine coolant temperature reaches 35°C (95°F) after a cold engine start, if the CVT fluid temperature is 100°C (212°F) or more, the ECM also determines this as a fault, illuminates the MIL, and stores this DTC.

CAUTION / NOTICE / HINT

Tip:

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.

  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON.

  3. Turn the GTS on.

  4. Enter the following menus: Powertrain / Transmission / Data List / A/T Oil Temperature No.1.

  5. Drive the vehicle and check that the Data List value (A/T Oil Temperature No.1) is between 20 and 100°C (68 and 212°F).

  6. Check for DTCs again.

    Click here

PROCEDURE

  1. CHECK DTC OUTPUT (IN ADDITION TO DTC P071000)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Transmission / Trouble Codes.

      Powertrain > Transmission > Trouble Codes

    5. Read the DTCs using the GTS.

      Tip:

      If any DTCs other than P071000 are output, perform troubleshooting for those DTCs first.

    Result

    Result

    Proceed to

    Only DTC P071000 is output

    A

    DTC P071000 and other DTCs are output

    B
    B

    GO TO DTC CHART

    Click hereClick here

    A

  2. CHECK CVT FLUID LEVEL

    1. Check the CVT fluid level.

      Click hereClick here

      OK

      CVT fluid level is correct.

    Result

    Proceed to

    OK

    NG
    NG

    ADD FLUID

    Click hereClick here

    OK

  3. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

    1. Replace the continuously variable transaxle assembly.

      Click hereClick here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM INITIALIZATION

    Click hereClick here