Nissan Sentra B18 (2020-2025) Service Manual: Diagnosis and Repair Work Flow

Nissan Sentra B18 (2020-2025) Service Manual / Cruise Control & Driver Assistance / Driver Assistance System :: Chassis Control / Basic Inspection / Diagnosis and Repair Work Flow

Work Flow

Work Flow

DETAILED FLOW

INTERVIEW FROM THE CUSTOMER

Clarify customer complaints before inspection. First of all, perform an interview utilizing diagnostic Work Sheet and reproduce the symptom as well as fully understand it. Ask customer about his/her complaints carefully. Check symptoms by driving Nissan Sentra vehicle with customer, if necessary. Refer to Diagnostic Work Sheet.

CAUTION:

Customers are not professional. Never guess easily like “maybe the customer means that...,” or “maybe the customer mentions this symptom”.

>>
GO TO 2.
CHECK SYMPTOM

Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by the interview. Also check that the symptom is not caused by fail-safe mode. Refer to Fail-Safe [Chassis Control Module (With Built In Steering Angle Sensor)].

CAUTION:

When the symptom is caused by normal operation, fully inspect each portion and obtain the understanding of customer that the symptom is not caused by a malfunction.

>>
GO TO 3.
PERFORM SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “CHASSIS CONTROL”.

Is DTC detected?
YES >>
Record or print self-diagnosis results and freeze frame data (FFD). GO TO 4.
NO >>
INSPECTION END
PERFORM DTC DIAGNOSIS PROCEDURE

With CONSULT

Perform confirmation procedures for the error-detected system.
Note:
If some DTCs are detected at the same time, determine the order for performing the diagnosis. Refer to DTC Inspection Priority Chart.

Is DTC detected?
YES >>
GO TO 5.
NO >>
Check harness and connectors based on the information obtained by the interview.
REPAIR OR REPLACE ERROR-DETECTED PARTS
1. Repair or replace error-detected parts.
2. Reconnect part or connector after repairing or replacing.
3. When DTC is detected, erase self-diagnosis results for “CHASSIS CONTROL”.
>>
GO TO 6.
FINAL CHECK

With CONSULT
1. Check the reference value for “CHASSIS CONTROL”.
2. Recheck the symptom and check that the symptom is not reproduced on the same conditions.
Is the symptom reproduced?
YES >>
GO TO 3.
NO >>
INSPECTION END

Diagnostic Work Sheet

Diagnostic Work Sheet

Description

In general, customers have their own criteria for a symptom. Therefore, it is important to understand the symptom and status well enough by interviewing the customer about the symptom carefully. To systemize all the information for the diagnosis, prepare the interview sheet referring to the interview points.
In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.

INTERVIEW SHEET SAMPLE

Interview sheet
Customer name	MR/MS	Registration number	Initial year registration
Customer name	MR/MS	Nissan Sentra Vehicle type	VIN
Storage date		Engine, Traction motor	Mileage	km ( Mile)
Symptom		□ Does not operate (		) function
		□ Warning lamp for (		) turns ON.
		□ Noise □ Vibration
		□ Other (		)
First occurrence		□ Recently □ Other (		)
Frequency of occurrence		□ Always □ Under a certain conditions of □ Sometimes ( time(s)/day)
Climate conditions		□ Irrelevant
	Weather	□ Fine □ Cloud □ Rain □Snow □ Others (		)
	Temperature	□ Hot □Warm □ Cool □ Cold □ Temperature [Approx.		°C ( °F)]
	Relative humidity	□ High □ Moderate □ Low
Road conditions		□ Urban area □ Suburb area □ Highway □ Mountainous road (uphill or downhill) □ Rough road
Operating condition, etc.		□Irrelevant □When traction motor starts □ During idling □ During driving □ During acceleration □ At constant speed driving □ During deceleration □ During cornering (right curve or left curve) □ When steering wheel is steered (to right or to left)
Other conditions
Nissan Sentra Vehicle equipment
Memo

Basic Inspection

...

Additional Service When Replacing Chassis Control Module (with Built in Steering Angle Sensor)

Description Description When replacing the chassis control module, the procedures of BEFORE REPLACEMENT and AFTER REPLACEMENT must be performed. For work procedure, refer to Work Procedur ...

Other materials:

Dtc Diagnosis Procedure
DTC Diagnosis Procedure INTELLIGENT KEY UNIT CONFIGURATION Perform configuration. Refer to Work Procedure. Is the DTC detected? YES >> GO TO 2. NO >> Inspection End. REPL ...

P0746-00 Pressure Control Solenoid a
Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection conditi ...

Rear Sonar System (RSS)
The Rear Sonar System (RSS) in the Nissan Sentra emits audible tones to inform the driver of obstacles detected near the rear bumper, helping improve awareness during low-speed maneuvering and parking. When the "DISPLAY" key is activated, the sonar view automatically appears on ...