Nissan Sentra B18 (2020-2025) Service Manual / Transmission & Driveline / Transaxle & Transmission :: Cvt: Re0f15a / Dtc/circuit Diagnosis / P0711-00 Transmission Fluid Temperature Sensor a

Nissan Sentra B18 (2020-2025) Service Manual: P0711-00 Transmission Fluid Temperature Sensor a

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC		CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0711	00	FLUID TEMP SENSOR A (Transmission Fluid Temperature Sensor A Circuit Range/Performance)	1	Diagnosis condition	Diagnosis is permitted when all of the following conditions are satisfied: a) Shift position: D position b) Power supply voltage ≥ 10 V c) Engine speed ≥ 450 rpm d) Nissan Sentra Vehicle speed: 10 km/h (7 MPH) or more e) Accelerator pedal position ≥ 0.3 deg
				Signal	CVT fluid temperature sensor signal
				Threshold	CVT fluid temperature does not rise to 10°C (50°F) after driving for a certain period of time with the TCM-received fluid temperature sensor value between − 40°C (−40°F) and 9°C (48°F).
				Diagnosis delay time	—
			2	Diagnosis condition	Diagnosis is permitted when all of the following conditions satisfied: a) Power supply voltage ≥ 10 V b) The difference between CVT fluid temperature and engine coolant temperature is 50°C (122°F) or more, or −27°C (−16°F) or less. c) Engine speed: 305 rpm or more
				Signal	CVT fluid temperature sensor signal
				Threshold	DTC is detected when all of the following conditions are satisfied: a) ECM is normal. b) Diagnosis condition is satisfied.
				Diagnosis delay time	300 seconds

POSSIBLE CAUSE

Harness or connector
CVT fluid temperature sensor
TCM

FAIL-SAFE

Engine coolant temperature when engine start: Temp. ≥ 10°C (50°F)
- Start is slow
- Acceleration is slow
- Stop/start system prohibited
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
- Stop/start system prohibited
Engine coolant temperature when engine start: Temp. <−35°C (−31°F)
- Selector shock is large
- Start is slow
- Acceleration is slow
- Stop/start system prohibited

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive Nissan Sentra vehicle at a safe speed.

PREPARATION BEFORE WORK

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

>>
GO TO 2.
INSPECTION START

Is it necessary to erase permanent DTC?
YES >>
GO TO 3.
NO >>
GO TO 7.
CHECK DTC (ECM AND TCM)

Check the DTC.

Is any DTC other than “P0711–00” detected?
YES >>
Check DTC detected item. Refer to DTC Index (ECM), DTC Index (TCM).
NO >>
GO TO 4.
CHECK DTC DETECTION - 1

TESTING CONDITION:
- While performing the following procedure, never add fuel.
- Before performing the following procedure, check that fuel level is between 1/4 and 4/4.
- Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
With CONSULT
1. Move the Nissan Sentra vehicle to a cool place.
  Note:
  Cool the vehicle in an environment of ambient air temperature between −10°C (14°F) and 35°C (95°F).
2. Ignition switch OFF and leave the Nissan Sentra vehicle for 12 hours.
  
  CAUTION:
  
  Never the ignition switch is ON during this procedure.
  
  Note:
  The Nissan Sentra vehicle must be cooled with the food open.
3. Ignition switch ON.
  
  CAUTION:
  
  Never start the engine.
4. Select “Data Monitor” in “TRANSMISSION”.
5. Select “FLUID TEMP”.
6. Record CVT fluid temperature.
7. Start engine and let it idle for 5 minutes or more.
  
  CAUTION:
  
  Never the ignition switch is OFF during idling.
8. Check 1st trip DTC.
With GST
1. Move the Nissan Sentra vehicle to a cool place.
  Note:
  Cool the vehicle in an environment of ambient air temperature between −10°C (14°F) and 35°C (95°F).
2. Ignition switch OFF and leave the Nissan Sentra vehicle for 12 hours.
  
  CAUTION:
  
  Never the ignition switch is ON during this procedure.
  
  Note:
  The Nissan Sentra vehicle must be cooled with the food open.
3. Start engine and let it idle for 5 minutes or more.
  
  CAUTION:
  
  Never the ignition switch is OFF during idling.
4. Check 1st trip DTC.
Is “P0711–00” detected?
YES >>
Go to Diagnosis Procedure.
NO-1>>
With CONSULT: GO TO 5.
NO-2>>
With GST: GO TO 6.
CHECK CVT FLUID TEMPERATURE

With CONSULT
1. Select “Data Monitor” in “TRANSMISSION”.
2. Select “FLUID TEMP”.
Is the value of “FLUID TEMP” 10°C (50°F) or more?
YES >>
INSPECTION END
NO >>
GO TO 6.

CHECK DTC DETECTION - 2

With CONSULT

Drive the Nissan Sentra vehicle for the total minutes specified in the Driving time column below with the following conditions satisfied.

Shift position	: “D” position
Accelerator pedal position	: 1.0/8 or more
Nissan Sentra Vehicle speed	: 10 km/h (7 MPH) or more

CVT fluid temperature before engine start	Driving time
−40°C (−40°F) –−31°C (−23.8°F)	20 minutes or more
−30°C (−22°F) –−21°C (−5.8°F)	18 minutes or more
−20°C (−4°F) –−11°C (−12.2°F)	14 minutes or more
−10°C (14°F) –−1°C (30.2°F)	10 minutes or more
0°C (32°F) – 9°C (48.2°F)	7 minutes or more

Stop the Nissan Sentra vehicle.
Check the first trip DTC.

With GST

Drive the Nissan Sentra vehicle and maintain the following conditions for 20 minutes or more.

Shift position	: “D” position
Accelerator pedal position	: 1.0/8 or more
Nissan Sentra Vehicle speed	: 10 km/h (7 MPH) or more

Stop the Nissan Sentra vehicle.
Check the first trip DTC.

Is “P0711–00” 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

CHECK DTC DETECTION - 3

With CONSULT

Ignition switch OFF and cool the engine.
Ignition switch ON.

CAUTION:

Never start the engine.
Select “Data Monitor” in “TRANSMISSION”.
Select “FLUID TEMP”.
Record CVT fluid temperature.
Start the engine and wait for at least 2 minutes.

Drive the Nissan Sentra vehicle for the total minutes specified in the Driving time column below with the following conditions satisfied.

Shift position	: “D” position
Accelerator pedal position	: 1.0/8 or more
Nissan Sentra Vehicle speed	: 10 km/h (7 MPH) or more

CVT fluid temperature before engine start	Driving time
−40°C (−40°F) –−31°C (−23.8°F)	20 minutes or more
−30°C (−22°F) –−21°C (−5.8°F)	18 minutes or more
−20°C (−4°F) –−11°C (−12.2°F)	14 minutes or more
−10°C (14°F) –−1°C (30.2°F)	10 minutes or more
0°C (32°F) – 9°C (48.2°F)	7 minutes or more
Other than the above	— (Go to “8.CHECK CVT FLUID TEMPERATURE SENSOR”)

Stop the Nissan Sentra vehicle.
Check the first trip DTC.

With GST

Ignition switch OFF and cool the engine.
Start the engine and wait for at least 2 minutes.

Drive the Nissan Sentra vehicle and maintain the following conditions for 20 minutes or more.

Shift position	: “D” position
Accelerator pedal position	: 1.0/8 or more
Nissan Sentra Vehicle speed	: 10 km/h (7 MPH) or more

Stop the Nissan Sentra vehicle.

CAUTION:

Never the ignition switch is OFF.
Check the first trip DTC.

Is “P0711–00” detected?

YES >>

Go to Diagnosis Procedure.

NO >>

GO TO 8.

CHECK CVT FLUID TEMPERATURE SENSOR

Ignition switch OFF.
Disconnect CVT unit harness connector.

Check resistance between CVT unit connector terminals.

CVT unit	Condition	Resistance
Terminal	Condition	Resistance
12 – 18	CVT fluid temperature: 20°C (68°F)	6.3 – 6.7 kΩ
	CVT fluid temperature: 50°C (122°F)	2.1 – 2.3 kΩ
	CVT fluid temperature: 80°C (176°F)	0.8 – 0.9 kΩ

Is the inspection result normal?

YES-1>>

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

YES-2>>

Confirmation after repair: INSPECTION END

NO >>

There is a malfunction of CVT fluid temperature sensor. Replace CVT fluid temperature sensor. Refer to Removal and Installation.

Diagnosis Procedure

Diagnosis Procedure

CHECK CVT FLUID TEMPERATURE SENSOR CIRCUIT

Check CVT fluid temperature sensor circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?
YES>>
Replace TCM. Refer to Removal and Installation.
NO >>
Repair or replace damaged parts.

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