Nissan Sentra Service Manual: Symptom diagnosis
Nissan vehicle immobilizer systemnats symptoms
Symptom Table
Note:
- Before performing the diagnosis in the following table, check “SEC-171, "Work Flow"”.
- Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and check each symptom.
- If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
- Mechanical key is not inserted into key cylinder.
| Symptom | Diagnosis/service procedure | Reference page |
| Security indicator does not turn ON or flash. |
|
SEC-190 |
|
GI-39 |
Dtc/circuit diagnosis
Power supply and ground circuit
Diagnosis Procedure
Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description".
Vehicle security indicator
Description
DTC DETECTION LOGIC
NOTE:
U ...
Removal and installation
Nats antenna amp
Removal and installation
REMOVAL
Remove instrument finisher B. Refer to IP-14, "Exploded View".
Using a suitable tool release the pawls on either side and remove the ...
Other materials:
Diagnosis system (TCM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1 Trip Detection Diagnosis and 2 Trip Detection
Diagnosis
NOTE:
“Start the engine and turn OFF the ignition switch after warm-up.” This is
defined as 1 trip.
TRIP DETECTION DIAGNOSIS
When initial malfunction is detected, TCM mem ...
Diagnosis system (bcm) (with intelligent key system)
Common item
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Description
ECU identification
The BCM part number is displayed.
Self Diagnostic Result
...
On board diagnosis function
ON BOARD DIAGNOSIS ITEM
The on board diagnostic system has the following functions.
Diagnostic test mode
Function
Bulb check
MIL can be checked.
SRT status
ECM can read if SRT codes are set.
Malfunction warning
If ECM detects a malfunction, it illumina ...
