Nissan Sentra Service Manual: Basic inspection
Diagnosis and repair workflow
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 occurred).
>> Go to 2
2.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.
>> GO TO 3
3.Detect malfunctioning part by diagnostic procedure
Inspect according to diagnostic procedure of the system.
Is malfunctioning part detected? YES >> GO TO 4
No >> go to 2
4.Repair or replace the malfunctioning part
- Repair or replace the malfunctioning part.
- Reconnect parts or connectors disconnected during diagnostic procedure.
>> GO TO 5
5.Final check
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Was the repair confirmed? Yes >> inspection end.
No >> go to 2
Wiring diagram
Display audio with bose
Wiring diagram
...
Dtc/circuit diagnosis
Power supply and ground circuit
Audio unit
Audio unit : diagnosis procedure
Regarding Wiring Diagram information, refer to AV-157, "Wiring Diagram".
1.Check fuse
Are the fuses blown?
...
Other materials:
P0448 EVAP Canister vent control valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0448
VENT CONTROL VALVE
(Evaporative emission system
vent control circuit shorted)
EVAP canister vent control valve remains
clos ...
Regulatory Information
FCC Regulatory information
CAUTION: To maintain compliance with
FCC’s RF exposure guidelines, use only the
supplied antenna. Unauthorized antenna,
modification, or attachments could damage
the transmitter and may violate FCC regulations.
Operation is subject to the following two cond ...
Three Way Catalyst
If a large amount of unburned fuel flows into the catalyst, the catalyst
temperature will be excessively high. To
prevent this, follow the instructions.
Use unleaded gasoline only. Leaded gasoline will seriously damage the
three way catalyst.
When checking for ignition spark or measuring ...
