Nissan Sentra B18 (2020-2025) Service Manual: Basic Inspection. Diagnosis and Repair Work Flow
Diagnosis and Repair Work Flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
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GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the “Diagnostic Work Sheet”. (Refer to Diagnostic Work Sheet)
>>GO TO 2.
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CHECK DTC
CONSULT-
Check DTC of “All DTC Reading”.
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Perform the following procedure if DTC is displayed.
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Record DTC and freeze frame data. (Or, write it down.)
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Check related service bulletins for information.
Is any DTCs detected?
YES >>Perform the trouble diagnosis for DTC indicated.
NO >>GO TO 3.
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CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation related to the system. Refer to System Description.
>>GO TO 4.
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CHECK ECO MODE SWITCH CIRCUIT
Check ECO mode switch circuit. Refer to Diagnosis Procedure.
Is inspection result normal?
YES >>GO TO 5.
NO >>Repair or replace malfunctioning component.
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CHECK ECO MODE SWITCH AND METER INDICATION
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Ignition switch OFF and wait at least 10 seconds.
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Ignition switch ON.
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Check that STANDARD is displayed on the information display screen of the combination meter.
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Check that the view of information display changes as ECO mode indicator signal (OFF).
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Check that the view of information display changes as ECO mode indicator signal (ON).
Is the inspection result normal?
YES >>Inspection End.
NO >>Check intermittent incident. Refer to Intermittent Incident.
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Other materials:
Flat tire
Tire Pressure Monitoring System (TPMS)
This Nissan Sentra is equipped with a Tire Pressure Monitoring System (TPMS)
designed to monitor the air pressure in all four road tires, excluding the spare
tire. When the low tire pressure warning light illuminates and the message "Tire
Pressure L ...
Steering wheel turning force is heavy or light
Description
Steering wheel turning force is heavy or light.
Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS
With CONSULT
Turn the ignition switch OFF to ON.
Perform EPS self-diagnosis.
Is any DTC detected?
YES >> Check the DTC. Refer to STC-14, "DTC Index".
NO & ...
Exhaust Manifold
Exploded View
Exploded View
1.
Air fuel ratio (A/F) sensor
1
2.
Exhaust manifold cover
...