Nissan Sentra Service Manual: Diagnosis and repair work flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.COLLECT INFORMATION FROM THE CUSTOMER
Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the diagnostic worksheet. Refer to BRC-52, "Diagnostic Work Sheet".
>> GO TO 2.
2.PERFORM SELF DIAGNOSTIC RESULT
Perform self diagnostic result. Refer to BRC-31, "CONSULT Function (ABS)".
Are any DTCs displayed? YES >> Refer to BRC-43, "DTC Index".
NO >> GO TO 3.
3.CHECK SYMPTOM OPERATING CONDITION
Check that the symptom is a normal operating condition. Refer to BRC-105, "Description".
Is the symptom a normal operating condition? YES >> Inspection End.
NO >> GO TO 4.
4.CHECK WARNING AND INDICATOR LAMPS OPERATION
Check ABS and brake warning lamps, and VDC OFF and SLIP indicator lamps operation. Refer to MWI-8, "METER SYSTEM : System Description".
Is ON/OFF timing normal? YES >> GO TO 5.
NO >> Perform warning lamp diagnosis. Refer to BRC-94, "Component Function Check" (ABS warning lamp), BRC-95, "Component Function Check" (brake warning lamp), BRC-96, "Component Function Check" (VDC OFF indicator lamp) or BRC-97, "Component Function Check" (SLIP indicator lamp).
5.PERFORM DIAGNOSIS APPLICABLE TO THE SYMPTOM
Perform diagnosis applicable to the symptom. Refer to BRC-98, "Symptom Table".
>> GO TO 6.
6.FINAL CHECK
Perform self diagnostic result again, and check that the malfunction is repaired. After checking, erase the self diagnosis memory. Refer to BRC-31, "CONSULT Function (ABS)".
>> Inspection End
Diagnostic Work Sheet
Additional service when replacing abs actuator and electric unit (control unit)
Description
When replacing the ABS actuator and electric unit (control unit), perform steering angle sensor neutral position adjustment. Refer to BRC-54, "Work Procedure".
Basic inspection
...
Adjustment of steering angle sensor neutral position
Description
Refer to the table below to determine if adjustment of steering
angle sensor neutral position is required.
×: Required –: Not required
Work Procedure
ADJUSTMENT OF ST ...
Other materials:
Eco mode control
ECO MODE CONTROL : System Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM receives an ECO mode signal from combination meter via CAN
communication and improves the fuel
economy by controlling the throttle movement to less than usual. Therefore,
driving characteristic is controlle ...
Ecu diagnosis information
Abs actuator and electric unit
(control unit)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The display shows the control unit calculation data, so a
normal value might be displayed even in the
event the output circuit (harness) is open or short-circuited.
...
Circuit Inspection
DESCRIPTION
In general, testing electrical circuits is an easy task if it is
approached in a logical and organized method.
Before beginning it is important to have all available information on the
system to be tested. Also, get a thorough
understanding of system operation. Then you w ...
