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

Nissan Sentra B18 (2020-2025) Service Manual: 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

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 Procedure.

BEFORE REPLACEMENT

When replacing the chassis control module, save “Operation log”.

AFTER REPLACEMENT

After replacing the chassis control module, the following items must be performed:

Chassis control module programming

Work Procedure

Work Procedure

BEFORE REPLACING CHASSIS CONTROL MODULE

SAVE “OPERATION LOG”

With CONSULT

Save “Operation Log”, according to the procedure of “Programming” in CONSULT Operation Manual.
Note:
Chassis control module part number is saved in “Operating Log” saved in CONSULT.

>>
- Replace the chassis control module. Refer to Removal and Installation.
- After replacing the chassis control module, perform necessary work.

AFTER REPLACING CHASSIS CONTROL MODULE

CHECK “OPERATION LOG”

With CONSULT

Check “Operation Log” saved before replacing the chassis control module, according to the procedure of “Programming” in CONSULT Operation Manual.
Note:
For the Nissan Sentra vehicle that the programming is to be performed, check if “Operation Log” of Vehicle Identification Number (VIN) is in Saved Data List.

Is there an applicable Operation Log in the Saved Data List?
YES >>
GO TO 2.
NO >>
GO TO 3.
PERFORM CHASSIS CONTROL MODULE PROGRAMMING

With CONSULT

Perform chassis control module programming, according to “Programming” of CONSULT Operation Manual. Refer to CONSULT Operation Manual.

CAUTION:

During programming, maintain the following conditions:

Ignition switch: ON

Electric load: OFF

Brake pedal: Not depressed

12V battery voltage: 12 – 13.5 V (Check the value displayed on the CONSULT screen.)

>>
GO TO 5.
READ IN CHASSIS CONTROL MODULE PART NUMBER BY EPC LINKED

Obtain chassis control module part number by EPC (service parts catalog), according to the procedure of EPC linked in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

CAUTION:

Be sue select “EPC linked”.

Note:
“EPC linked” allows an appropriate programming by obtaining ECU part number from EPC (service parts catalog) even when the part number cannot be obtained from the old ECU used before replacing with a new one.

>>
GO TO 4.
PERFORM PROGRAMMING (EPC LINKED)

With CONSULT

Perform chassis control module programming according to the procedure of EPC linked in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

CAUTION:

During programming, maintain the following conditions:

Ignition switch: ON

Electric load: OFF

Brake pedal: Not depressed

12V battery voltage: 12 – 13.5 V (Check the value displayed on the CONSULT screen.)

>>
GO TO 5.
PERFORM NECESSARY WORK
1. Perform self-diagnosis for “CHASSIS CONTROL”.
2. Erase the memory of self-diagnosis results.
>>
End of work.

 Ecu Diagnosis Information. Chassis Control Module (with Built in Steering Angle Sensor)

Chassis Control Module (with Built in Steering Angle Sensor) Dtc Index DTC Index Self Diagnostic Result DTC Display item Refer to C1B80-54 Calibration not completed [MISSING CAL...

 Dtc/circuit Diagnosis

C1b80-54 Control Module Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition C1B80 54 Calibration...

Other materials:

Intelligent Key Button Operation Has Poor Range (all Keys)
Description Description Intelligent Key button operation has poor range. SYMPTOM TABLE (BOTH INTELLIGENT KEYS HAVE THE SAME SYMPTOMS) Door lock operation (remote keyless entry) ...

P2135 Tp Sensor
Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition ...

B2f73-23 Clutch Switch
Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detecting condition ...