Trouble Diagnosis Procedure
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnosis Procedure
PRELIMINARY CHECK
1.GET SYMPTOMS
Listen to customer complaints request. (Get symptoms)
NOTE:
If customer reports a "No start" condition, request all Intelligent Keys to be brought to the dealer in case of Intelligent Key system malfunction.
Intelligent Key or mechanical key service request>> For further information, refer to CONSULT-III operation manual.
Malfunctions>>GO TO 2
2.START ENGINE WITH INTELLIGENT KEY (IF EQUIPPED)
Check if the engine could be started by all registered Intelligent Keys.
The engine cannot be started by some Intelligent Keys>>Intelligent Key is low battery or malfunction. Refer to Intelligent Key Battery Replacement .
The engine cannot be started by all Intelligent Keys >> GO TO 3
The engine can be started by all Intelligent Keys >> GO TO 4
3.CHECK "KEY" WARNING LAMP ILLUMINATION
When pushing the ignition switch, check if "KEY" warning lamp in combination meter illuminates.
KEY warning lamp illuminates green >> Refer to Trouble Diagnosis Symptom Chart .
KEY warning lamp illuminates red >> Refer to Trouble Diagnosis Symptom Chart .
Does not illuminate >> Refer to Trouble Diagnosis Symptom Chart .
4.START ENGINE WITH MECHANICAL KEY
Check if the engine could be started by all registered mechanical keys.
The engine can not be started by some mechanical keys >> Register mechanical key. Refer to CONSULT-III operation manual.
The engine cannot be started by all mechanical keys >> "WORK FLOW" .
The engine can be started by all mechanical keys >> GO TO 5
5.PERFORM SELF-DIAGNOSIS
1. Turn ignition switch to ON by carrying the Intelligent Key.
2. Perform self-diagnosis of Intelligent Key system with CONSULT-III.
Malfunction is detected >> Refer to CONSULT-III Application Item .
No malfunction is detected >> Refer to Trouble Diagnosis Procedure .
WORK FLOW
1.STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate ignition switch.
OK >> System is normal.
NG >> GO TO 2
2.PERFORM SELF DIAGNOSIS
Perform NATS SELF-DIAGNOSIS using CONSULT-III.
NOTE:
NATS program card is necessary to display the "SELF-DIAGNOSIS".
No malfunction is detected >> Recheck the starting engine section GO TO 1
Malfunction related to NATS is detected >> GO TO 3
Malfunctions related to "DON'T ERASE BEFORE CHECKING ENG DIAG" and NATS are detected >> GO
TO 7
3.IDENTIFYING NATS MALFUNCTION
Self-diagnosis results referring to NATS, but no information about engine self-diagnosis result is displayed on
CONSULT-III. Refer to Trouble Diagnosis .
>> GO TO 4
4.NATS TROUBLE DIAGNOSIS
Repair NATS (if necessary, perform "C/U INITIALIZATION" with CONSULT-III.)
>> GO TO 5
5.ERASE SELF-DIAGNOSIS
Erase the record of "SELF-DIAGNOSIS" by using CONSULT-III.
>> GO TO 6
6.STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate ignition switch.
NG >> GO TO 2
OK >> Inspection End.
7.IDENTIFYING NATS AND ENGINE CONTROL MALFUNCTION
NATS malfunction and "DON'T ERASE BEFORE CHECKING ENG DIAG" are displayed on the CONSULT-III screen.
NOTE:
This indication means that malfunction have been detected in NATS and engine control system.
>> GO TO 8
8.NATS TROUBLE DIAGNOSIS
Repair NATS according to self-diagnosis results refer to NATS (if necessary, perform "C/U INITIALIZATION" with CONSULT-III.)
NOTE:
Do not erase "SELF-DIAGNOSIS" by using CONSULT-III.
>> GO TO 9
9.IDENTIFYING ENGINE CONTROL MALFUNCTION
Check engine "SELF-DIAGNOSIS" records with a generalized program card instead of the NATS program card.
>> GO TO 10
10.ENGINE CONTROL SYSTEM TROUBLE DIAGNOSIS
Repair engine control system if engine related malfunction is detected.
With engine diagnostic codes present, refer to Testing and Inspection (MR type 1) or (MR type 2).
Without engine diagnostic codes present, refer to Up to VIn #386333 (MR type 1) or From VIn #386334 (MR type 2).
NOTE:
If only "NATS MALFUNCTION" is displayed, erase the self-diagnosis results.
>> GO TO 11
11.STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate ignition switch.
OK >> GO TO 12
NG >> GO TO 2
12.ERASE SELF-DIAGNOSIS
Erase both NATS and ENGINE "SELF-DIAGNOSIS" records by using CONSULT-III NATS program card.
>> GO TO 13
13.CONFIRMATION
Perform running test with CONSULT-III in engine "SELF-DIAGNOSIS" mode.
"NO DTC" is displayed >> Inspection End.
Malfunction information is displayed >>GO TO 2