Nissan Rogue Service Manual: P0848 transmission fluid pressure SEN/SW B
DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition |
| P0848 | FLUID PRESS SEN/SW B (Transmission Fluid Pressure Sensor/Switch B Circuit Low) | When all of the following conditions are satisfied and this state is
maintained
for 5 seconds:
|
POSSIBLE CAUSE
- Harness or connector (Secondary pressure sensor circuit is shorted to power supply)
- Secondary pressure sensor
- Control valve assembly
FAIL-SAFE
Not changed from normal driving
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, the ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT
- Start the engine.
- Select “Data Monitor” in “TRANSMISSION”.
- Select “FLUID TEMP”.
- Maintain the following conditions for 10 seconds or more.
FLUID TEMP : More than −20°C (−4°F)
- Check the first trip DTC.
With GST
- 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.
- Check the first trip DTC.
Is “P0848”detected? YES >> Go to TM-148, "Diagnosis Procedure".
NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".
NO-2 >> Confirmation after repair: INSPECTION END
Diagnosis Procedure
1.CHECK TCM INPUT SIGNALS
- Turn ignition switch OFF.
- Start the engine.
- Check voltage between TCM harness connector terminals.
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK SECONDARY PRESSURE SENSOR POWER CIRCUIT
- Turn ignition switch OFF.
- Connect TCM connector.
- Disconnect CVT unit connector.
- Check voltage between CVT unit harness connector terminal and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace malfunctioning parts.
3.CHECK SECONDARY PRESSURE SENSOR SIGNAL CIRCUIT
eck voltage between CVT unit harness connector terminal and ground.
Is the inspection result normal? YES >> There is malfunction of secondary pressure sensor. Replace transaxle assembly. Refer to TM- 220, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
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 Pressur ...
P084c transmission fluid pressure SEN/SW H
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P084C
FLUID PRESS SEN/SW H
(Transmission Fluid Pressur ...
Other materials:
System description
SYSTEM
System Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The BCM has a CAN gateway function.
The BCM communicates between two CAN communication circuits.
The BCM selects and transmits only necessary information.
DIAGNOSIS SYSTEM (CAN GATEWAY)
CONSULT Function
...
Replacement operations
Description
This section is prepared for technicians who have attained a high level
of skill and experience in repairing
collision-damaged vehicles and also use modern service tools and equipment.
Persons unfamiliar with body
repair techniques should not attempt to repair collision-dam ...
Primary speed sensor
Exploded View
Transaxle assembly
O-ring
Primary speed sensor
: Always replace after every
disassembly.
: N·m (kg-m, in-lb)
: Apply CVT fluid
Removal and Installation
REMOVAL
Remove the engine undercover. Refer to EXT-37, "ENGINE UNDER COVER
: Removal and Ins ...
