Nissan Sentra Service Manual: Basic inspection
Diagnosis and repair work flow
Work flow
Overall sequence
Detailed flow
1.Get information for symptom
- Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurs).
- Check operation condition of the component or system that is malfunctioning.
>> Go to 2.
2.Check dtc
- Check dtc.
- Perform the following procedure if dtc is detected.
- Record dtc and freeze frame data (print them out using consult).
- Erase dtc.
- Study the relationship between the cause detected by dtc and the symptom described by the customer.
- Check related service bulletins for information.
Are any symptoms described and any dtc detected? Symptom is described, dtc is detected>>go to 3.
Symptom is described, dtc is not detected>>go to 4.
Symptom is not described, dtc is detected>>go to 5.
3.Confirm the symptom
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
4.Confirm the symptom
Try to confirm the symptom described by the customer.
Verify relation between the symptom and the condition when the symptom is detected.
Note:
Freeze frame data is useful if the dtc is not detected.
>> Go to 6.
5.Perform dtc confirmation procedure
Perform dtc confirmation procedure for the detected dtc, and then check that dtc is detected again. At this time, always connect consult to the vehicle, and check self diagnostic results in real time.
If two or more dtcs are detected, refer to bcs-48, "dtc inspection priority chart", and determine trouble diagnosis order.
Is dtc detected? Yes >> go to 7.
No >> refer to gi-39, "intermittent incident".
6.Detect malfunctioning system by symptom diagnosis
Detect malfunctioning system according to symptom diagnosis based on the confirmed symptom in step 4, and determine the trouble diagnosis order based on possible causes and symptom.
Is the symptom described? Yes >> go to 7.
No >> monitor input data from related sensors or check voltage of related module terminals using consult.
7.Detect malfunctioning part by diagnosis procedure
Inspect according to diagnosis procedure of the system.
Is malfunctioning part detected? Yes >> go to 8.
No >> refer to gi-39, "intermittent incident".
8.Repair or replace the malfunctioning part
- Repair or replace the malfunctioning part.
- Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replacement.
- Check dtc. If dtc is detected, erase it.
>> Go to 9.
9.Final check
When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the malfunction is repaired securely.
When symptom is described by the customer, refer to confirmed symptom in step 3 or 4, and check that the symptom is not detected.
Is DTC detected and does symptom remain? YES-1 >> DTC is detected: GO TO 7.
YES-2 >> Symptom remains: GO TO 4.
NO >> Inspection End.
Wiring diagram
Power distribution system
Wiring diagram
...
Dtc/circuit diagnosis
U1000 can comm circuit
Description
Refer to lan-7, "can communication system : system description".
DTC Logic
Dtc detection logic
Note:
U1000 can be set if a module harness was discon ...
Other materials:
Basic inspection
Diagnosis and repair workflow
Trouble diagnosis flow chart
Trouble diagnosis procedure
Interview with customer
Interview with the customer is important to detect the root cause of can
communication system errors and to
understand vehicle condition and symptoms for proper trouble diagnosi ...
On board refueling vapor recovery(ORVR)
Component Function Check
1.CHECK ORVR FUNCTION
Check whether the following symptoms are present.
Fuel odor from EVAP canister is strong
Cannot refuel/Fuel odor from the fuel filler opening is strong while
refueling.
Are any symptoms present?
YES >> Proceed to EC-468, "Diagn ...
B0093 FRont door satellite sensor LH
Description
DTC B0093 FRONT DOOR SATELLITE SENSOR LH
The front door satellite sensor LH is wired to the air bag diagnosis sensor
unit. The air bag diagnosis sensor
unit will monitor the front door satellite sensor LH for internal failures and
its circuits for communication errors.
PART LOCA ...
