Toyota Yaris: Manual Transaxle System / Transmission Fluid Temperature Sensor "A" Circuit Short To Ground (P071011)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Drivetrain / Ea67f (manual Transmission / Transaxle) / Manual Transaxle System / Transmission Fluid Temperature Sensor "A" Circuit Short To Ground (P071011)

DESCRIPTION

The manual transaxle oil temperature sensor (temperature sensor) installed inside the manual transaxle assembly detects the temperature of the fluid in the transaxle and outputs signals to the ECM according to the fluid temperature.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P071011

Transmission Fluid Temperature Sensor "A" Circuit Short To Ground

Manual transaxle oil temperature sensor (temperature sensor) output voltage is less than 0.1 V (circuit shorted) for 5 seconds or more.

(1-trip detection logic)

  • Wire harness or connector
  • Manual transaxle oil temperature sensor (temperature sensor)
  • ECM

Does not come on

DTC stored

SAE Code:

P0712

HINT:

When this DTC is output, check the manual transaxle oil temperature sensor (temperature sensor) in the Data List. Enter the following menus: Powertrain / Engine / Data List / M/T Oil Temperature.

DTC No.

M/T Oil Temperature

Malfunction

P071011

Higher than 135°C (284°F)

  • Short to ground in THOM circuit

If the Data List values are normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

Click here

MONITOR DESCRIPTION

The ECM calculates the temperature of the MT fluid based on the voltage output by the manual transaxle oil temperature sensor (temperature sensor). If the output voltage of the manual transaxle oil temperature sensor (temperature sensor) is outside the normal range, there may be a malfunction in the manual transaxle oil temperature sensor (temperature sensor) or a short in the circuit. In that case, the ECM will illuminate the MIL and store a DTC.

CONFIRMATION DRIVING PATTERN

HINT:

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the ignition switch off and wait for at least 30 seconds.
  3. Turn the ignition switch to ON and wait for 3 seconds or more.
  4. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  5. Input the DTC: P071011.
  6. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed
    • System normal

    ABNORMAL

    • DTC judgment completed
    • System abnormal

    INCOMPLETE

    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    N/A

    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.

WIRING DIAGRAM

PROCEDURE

1.

READ VALUE USING GTS (M/T OIL TEMPERATURE)

*1

Manual Transaxle Oil Temperature Sensor (Temperature Sensor)

*2

ECM

(a) Disconnect the manual transaxle oil temperature sensor (temperature sensor) connector.

(b) According to the display on the GTS, read the Data List.

Powertrain > Engine > Data List

Tester Display

M/T Oil Temperature

(c) None.

Result

Proceed to

The value of M/T Oil Temperature is -40°C (-40°F)

A

None of the above conditions are met

B

A

REPLACE MANUAL TRANSAXLE OIL TEMPERATURE SENSOR (TEMPERATURE SENSOR)

B

2.

CHECK HARNESS AND CONNECTOR (MANUAL TRANSAXLE OIL TEMPERATURE SENSOR (TEMPERATURE SENSOR) - ECM)

(a) Disconnect the D104 ECM connector.

(b) Disconnect the D100 manual transaxle oil temperature sensor (temperature sensor) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D104-104 (THOM) or D100-1 (THO) - Body ground and other terminals

Always

10 kΩ or higher

(d) Connect the D100 manual transaxle oil temperature sensor (temperature sensor) sensor connector.

(e) Connect the D104 ECM connector.

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (MANUAL TRANSAXLE OIL TEMPERATURE SENSOR (TEMPERATURE SENSOR) - ECM)

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    Categories

    Turning the Engine Off

    Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.

    Automatic transaxle: Shift the selector lever to the P position and set the parking brake.

    Press the push button start to turn off the engine. The ignition position is off.

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