Nissan Murano: Dtc/circuit Diagnosis / P0712 Transmission Fluid Temperature Sensor a

Nissan Murano (Z52) 2015-2024 Service Manual / Transmission & Driveline / Transaxle & Transmission :: Cvt: Re0f10j / Dtc/circuit Diagnosis / P0712 Transmission Fluid Temperature Sensor a

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
P0712

FLUID TEMP SENSOR A

(Transmission Fluid Temperature Sensor A Circuit Low)
Diagnosis condition TCM power supply voltage: More than 11 V
Signal CVT fluid temperature sensor signal
Threshold Fluid temperature sensor detection voltage: 0.15 V or less
Diagnosis delay time Maintained for 5 seconds

POSSIBLE CAUSE

  • Harness or connector (CVT fluid temperature sensor circuit is shorted to ground)

  • CVT fluid temperature sensor

FAIL-SAFE

  • Engine coolant temperature when engine start: Temp. ≥ 10°C (50°F)

    • Start is slow

    • Acceleration is slow

  • Engine coolant temperature when engine start: −35°C (−31°F) ≤ Temp. < 10°C (50°F)

    • Selector shock is large

    • Start is slow

    • Acceleration is slow

  • Engine coolant temperature when engine start: Temp. <−35°C (−31°F)

    • Selector shock is large

    • Start is slow

    • Acceleration is slow

DTC Confirmation Procedure

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Start the engine and wait for 10 seconds or more.

  2. Check the first trip DTC.

Is “P0712” detected?

YES>>

Go to Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK CIRCUIT BETWEEN TCM AND CVT UNIT

  1. Turn ignition switch OFF.

  2. Disconnect TCM connector and CVT unit connector.

  3. Check continuity between TCM harness connector terminal and ground.

    TCM Continuity
    Connector Terminal
    F25 12 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace malfunctioning part.

CHECK TERMINAL CORD ASSEMBLY

Check continuity between CVT unit connector terminal and ground

CVT unit Continuity
Connector Terminal
F210 12 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace terminal cord assembly. Refer to Removal and Installation.

CHECK CVT FLUID TEMPERATURE SENSOR

Check resistance between CVT unit connector terminals.

CVT unit Condition

Resistance

(Approx.)
Connector Terminal
F210 12 – 18 CVT fluid temperature: 20°C (68°F) 6.5 kΩ
CVT fluid temperature: 50°C (122°F) 2.2 kΩ
CVT fluid temperature: 80°C (176°F) 0.87 kΩ

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace terminal cord assembly. Refer to Removal and Installation.

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