Nissan Juke Service and Repair Manual : Basic inspection
Diagnosis and repair work flow
Work Flow
DETAILED FLOW
1.INTERVIEW FROM THE CUSTOMER
Clarify customer complaints before inspection. First of all, perform an interview utilizing BRC-34, "Diagnostic Work Sheet" and reproduce the symptom as well as fully understand it. Ask customer about his/her complaints carefully.Check symptoms by driving vehicle with customer, if necessary.
CAUTION:
Customers are not professional. Never guess easily like “maybe the customer
means that...,” or “
maybe the customer mentions this symptom”.
>> GO TO 2.
2.CHECK SYMPTOM
Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by interview. Also check that the symptom is not caused by fail-safe mode. Refer to BRC-19, "Failsafe".
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.
3.PERFORM THE SELF-DIAGNOSIS
With CONSULT-III.
Perform self-diagnosis for “ABS”.
Is DTC detected? YES >> Record or print self-diagnosis results and GO TO 4.
NO >> GO TO 6. 4.RECHECK THE SYMPTOM
With CONSULT-III.
1. Erase self-diagnostic results for “ABS”.
2. Perform DTC confirmation procedures for the error-detected system.
NOTE
:
If some DTCs are detected at the some time, determine the order for performing
the diagnosis based on
BRC-30, "DTC Inspection Priority Chart" [ABS actuator and electric unit (control
unit)].
Is any DTC detected? YES >> GO TO 5.
NO >> Check harness and connectors based on the information obtained by interview. Refer to GI-42, "Intermittent Incident".
5.REPAIR OR REPLACE ERROR-DETECTED PART
• Repair or replace error-detected parts.
• Reconnect part or connector after repairing or replacing.
• When DTC is detected, erase self-diagnostic result for “ABS”.
>> GO TO 7.
6.IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS
Estimate error-detected system based on symptom diagnosis and perform inspection.
Can the error-detected system be identified?
YES >> GO TO 7.
NO >> Check harness and connectors based on the information obtained by interview. Refer to GI-42, "Intermittent Incident".
7.FINAL CHECK
With CONSULT-III.
1. Check the reference value for “ABS”.
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
Description
• In general, customers have their own criteria for a problem. Therefore, it is
important to understand the
symptom and status well enough by asking the customer about his/her concerns
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
Wiring diagram
BRAKE CONTROL SYSTEM Wiring Diagram For connector terminal arrangements, harness layout, and alphabets in a (option abbreviation; if not described in wiring diagram), refer to GI-12, "Connec ...Other materials:
Diagnosis system [ABS actuator and electric unit (control
unit)]
CONSULT-III Function
APPLICATION ITEMS
CONSULT-III can display each diagnostic item using the diagnostic test modes
as follows.
*1: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)
*2: Although “Function Test” is selectable, do not use its.
ECU I ...
P0201, P0202, P0203, P0204 fuel injector
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0201, P0202, P0203 or P0204 is displayed with DTC P0263, P0266, P0269 or
P0272 first perform
trouble diagnosis for DTC P0263, P0266, P0269 or P0272. Refer to EC-931, "DTC
Logic".
Diagnosis Procedure
1.CHECK FUEL INJECTOR POWER SUPPLY ...
P012A TC boost sensor
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or ...