Nissan Sentra B18 (2020-2025) Service Manual: P044b Egr Volume Control Valve Position Sensor
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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P044B |
EGR SENSOR C (EGR Sensor "C" Circuit Range/Performance) |
Diagnosis condition |
After warming up, switch OFF the ignition every time the engine is stopped. |
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Signal (terminal) |
― |
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Threshold |
When EGR volume control valve is fully closed or fully opened, sensor output is out of the specified range. |
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Diagnosis delay time |
0.3 seonds or more |
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POSSIBLE CAUSE
EGR volume control valve failure (sensor failure, internal gear damage, valve movement is not smooth)
FAIL-SAFE
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Fail safe mode |
Nissan Sentra Vehicle behavior |
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|---|---|---|
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Traveling control mode |
Accelerator angle variation control |
ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction. Note:
ECM does not control the accelerator pedal releasing speed. |
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Device fix mode |
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DTC CONFIRMATION PROCEDURE
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PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
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Turn ignition switch OFF and wait at least 10 seconds.
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Turn ignition switch ON.
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Turn ignition switch OFF and wait at least 10 seconds.
GO TO 2.
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PERFORM DTC CONFIRMATION PROCEDURE
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Start the engine and warm it up to normal operating temperature.
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Stop the engine.
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Switch ON the ignition and wait at least 3 seconds.
Is the DTC detected?
YES >>Proceed to DTC 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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Dtc Diagnosis Procedure
DTC Diagnosis Procedure
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REPLACE EGR VOLUME CONTROL VALVE
Replace EGR volume control valve. Refer to Removal and Installation.
>>INSPECTION END
Other materials:
Preparation. Preparation
Preparation
Special Service Tools
Special Service
Tools
The actual shape of the tools may differ from those
illustrated here.
Tool number
(TechMate No.)
Tool name
...
C1700-86 Control Unit
Dtc Description
DTC Description
Note:
The Signal Tech II Tool [– (NI-50190)] can be used
to perform the following functions: Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure rep ...
U1112-24 Deceleration Request Signal
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
...