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

Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Meter, Warning Lamp & Indicator :: Type a / Basic Inspection / Diagnosis and Repair Workflow

Work Flow

Work flow

OVERALL SEQUENCE

Reference 1: On Board Diagnosis Function.
Reference 2: DTC Index.
Reference 3: Diagnosis Procedure.
Reference 4: Component Inspection.
Reference 5: Diagnosis Procedure.

DETAILED FLOW

OBTAIN INFORMATION ABOUT SYMPTOM
1. Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred.
>>
GO TO 2.
CHECK SYMPTOM
1. - Check the symptom based on the information obtained from the customer.
  - Check that any other malfunctions are present.
>>
GO TO 3.
CHECK ON BOARD DIAGNOSIS OPERATION
1. Check that the on board diagnosis function operates. Refer to On Board Diagnosis Function.
Does the on board diagnosis function operate normally?
YES >>
GO TO 4.
NO >>
GO TO 6.
CHECK CONSULT SELF DIAGNOSTIC RESULT
1. CONSULT
  1. Select “Self Diagnostic Result” mode of “METER/M&A”. Refer to DTC Index.
  2. When DTC is detected, follow the instructions below:
    - Record DTC and Freeze Frame Data.
Is the inspection result normal?
YES >>
GO TO 5.
NO >>
GO TO 10.
NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
1. Perform symptom diagnosis and narrow down the malfunctioning parts.
>>
GO TO 10.
CHECK TRIP RESET SWITCH SIGNAL CIRCUIT
1. Check trip reset switch signal circuit. Refer to Diagnosis Procedure.
Is inspection result normal?
YES >>
GO TO 7.
NO >>
GO TO 10.
CHECK TRIP RESET SWITCH
1. Check trip reset switch. Refer to Component Inspection.
Is inspection result normal?
YES >>
GO TO 8.
NO >>
GO TO 10.
CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUITS
1. Check combination meter power supply and ground circuits. Refer to Diagnosis Procedure.
Is inspection result normal?
YES >>
GO TO 9.
NO >>
GO TO 10.
REPLACE COMBINATION METER
1. Replace combination meter. Refer to Removal and Installation.
>>
GO TO 11.
REPAIR OR REPLACE MALFUNCTIONING PARTS
1. Repair or replace the malfunctioning parts.
  Note:
  If DTC is displayed, erase DTC after repair or replace malfunctioning parts.
>>
GO TO 11.
FINAL CHECK
1. Check that the combination meter operates normally.
Does it operate normally?
YES >>
Inspection End
NO >>
GO TO 1.

Basic Inspection

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