Nissan Murano: Dtc/circuit Diagnosis / P0847 Transmission Fluid Pressure Sen/sw B

Nissan Murano (Z52) 2015-2024 Service Manual / Transmission & Driveline / Transaxle & Transmission :: Cvt: Re0f10j / Dtc/circuit Diagnosis / P0847 Transmission Fluid Pressure Sen/sw B

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
P0847

FLUID PRESS SEN/SW B

(Transmission Fluid Pressure Sensor/Switch B Circuit Low)
Diagnosis condition

When all of the following conditions are satisfied:

  • CVT fluid temperature: More than −20°C (−4°F)

  • TCM power supply voltage: 11 V or more

Signal
Threshold Secondary pressure sensor voltage: 0.09 V or less
Diagnosis delay time Maintained for 5 seconds

POSSIBLE CAUSE

  • Harness or connector (Secondary pressure sensor circuit is open or shorted to ground)

  • Secondary pressure sensor

  • Control valve assembly

FAIL-SAFE

Not changed from normal driving

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.

CHECK DTC DETECTION

With CONSULT

  1. Start the engine.

  2. Select “Data Monitor” in “TRANSMISSION”.

  3. Select “FLUID TEMP”.

  4. Maintain the following conditions for 10 seconds or more.

    FLUID TEMP : −20°C (−4°F)
  5. Check the first trip DTC.

With GST

  1. Start the engine and wait for at least 10 seconds.

    CAUTION:

    When the ambient temperature is less than −20°C (−4°F) and the engine is cold, warm up the engine for approximately 5 minutes.

  2. Check the first trip DTC.

Is “P0847”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 TCM INPUT SIGNALS

  1. Turn ignition switch OFF.

  2. Start the engine.

  3. Check voltage between TCM harness connector terminals.

    + Condition Voltage
    TCM
    Connector Terminal
    F25 16 Ground
    • Selector lever: “N” position

    • At idle

    1.7 – 1.8 V

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Inciden.

NO>>

GO TO 2.

CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 1)

  1. Turn ignition switch OFF.

  2. Disconnect TCM connector and CVT unit connector.

  3. Check continuity between TCM harness connector terminals and CVT unit harness connector terminals.

    TCM CVT unit Continuity
    Connector Terminal Connector Terminal
    F25 11 F44 18 Existed
    16 14
    26 22

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning parts.

CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 2)

Check continuity between TCM harness connector terminals and ground.

TCM Continuity
Connector Terminal
F25 16 Ground Not existed
26

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace malfunctioning parts.

CHECK TERMINAL CORD ASSEMBLY (PART 1)

  1. Remove terminal cord assembly. Refer to Removal and Installation.

  2. Check continuity between CVT unit harness connector terminals and control valve harness connector terminals.

    CVT unit Control valve Continuity
    Connector Terminal Connector Terminal
    F210 14 F207 12 Existed
    18 13
    22 11

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace malfunctioning parts.

CHECK TERMINAL CORD ASSEMBLY (PART 2)

Check damage of terminal cord assembly.

Is the inspection result normal?

YES>>

There is malfunction of secondary pressure sensor. Replace control valve assembly. Refer to Removal and Installation.

NO>>

Repair or replace malfunctioning parts.

    P0841 Transmission Fluid Pressure Sen/sw a

    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0841 FLUID PRESS SEN/SW A (Transmission Fluid Pressure Sensor/Switch “A” Circuit Range/Performance) Diagnosis condition When all of the following conditions are satisfied: TCM power supply voltage: More than 11 V DTC other than the applicable DTC is not detected...

    P0863 Tcm Communication

    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0863 CONTROL UNIT (CAN) (TCM Communication Circuit) Diagnosis condition Engine is started Signal — Threshold An error is detected at the initial CAN diagnosis of TCM Diagnosis delay time Within 1 second POSSIBLE CAUSETCMFAIL-SAFE Selector shock is large Start is slow Acceleration is slow Lock-up is not performed 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...

    Other information:

    Nissan Murano (Z52) 2015-2024 Service Manual: B27b0 A/c Auto Amp.


    DTC Description DTC DETECTION LOGICNOTE: If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Description. If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010...

    Nissan Murano (Z52) 2015-2024 Service Manual: B2622 Inside Antenna


    DTC Description NOTE: The Signal Tech II Tool [- (J-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information. Check Intelligent Key relative signal strength. Confirm Nissan Murano vehicle Intelligent Key antenna signal strength...

    Categories

    read more

     
    Copyright © 2026 www.nimurano.com