Nissan Sentra B18 (2020-2025) Service Manual: P27a4-00 Electric Oil Pump
Dtc Description
DTC Description
DTC DETECTION LOGIC
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P27A4 |
00 |
EL/AUX T/M FLUID PUMP B (Electric/Auxiliary Transmission Fluid Pump "B" Performance/Stuck Off) |
Diagnosis condition |
Diagnosis is permitted when all of the following conditions are satisfied: a) Ignition voltage ≥ 9.01 V b) Battery voltage ≥ 9.01 V c) After ignition on, 1 sec has elapsed. d) Target electric oil pump speed ≥ 500 rpm |
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Signal |
— |
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Threshold |
DTC is detected when one of the following conditions "a" and "b" are satisfied: a) Electric oil pump speed ≥ 500 rpm b) Electric oil pump current < 7 A |
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Diagnosis delay time |
2 seconds |
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POSSIBLE CAUSE
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Electric oil pump
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Control valve
FAIL-SAFE
Stop/start system prohibited
DTC CONFIRMATION PROCEDURE
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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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V.
>>GO TO 2.
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CHECK DTC DETECTION
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Ignition switch ON and wait for at 20 seconds.
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Check the DTC.
Is "P27A4-00" detected?
YES >>Proceed to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
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Diagnosis Procedure
Diagnosis Procedure
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REPLACE ELECTRIC OIL PUMP
Replace electric oil pump. Refer to Removal and Installation.
>>GO TO 2.
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CHECK DTC DETECTION
Perform DTC confirmation procedure. Refer to DTC Description.
Is "P27A4-00" detected again?
YES>>Replace control valve. Refer to Removal and Installation.
NO >>INSPECTION END
Other materials:
Steering Control System. Ecu Diagnosis Information. Eps Control Unit
Eps Control Unit
Values on the Diagnosis Tool
Values on the
Diagnosis Tool
Note:
The following table includes information (items)
inapplicable to this Nissan Sentra vehicle: For information (items) applicable to
this vehicle, refer to CONSULT display items.
...
Basic Inspection
Diagnosis and Repair Work Flow
Diagnostic Work Sheet
Diagnostic Work Sheet
DESCRIPTION
There are many operating conditions that lead to the malfunction
of engine components. A good grasp of such conditions can make troubleshooting
faster and more accurate.
In general, each custo ...
Work Procedure (Before Replacing Electric
Throttle Control Actuator)
CHECK DTC
Perform DTC P0101 confirmation procedure.
Refer to Confirmation Procedure.
Is the DTC P0101 displayed?
YES >>
GO TO 2.
NO >>
Replace electric throttle control actuator.
Refer to Removal and ...