NATS / Gasoline engine — Trouble Diagnoses — Work Flow
EL-7062flowchartTwo-path workflow: NATS-only or NATS + engine. NATS-only path can erase NATS results; NATS + engine path must first check engine results (do NOT erase NATS yet), repair EC, then erase both. Source prints 'Does the engine start properly correctamente?' — mixed-language artifact ('correctamente' Spanish-leaning), captured verbatim.
NATS (Nissan Anti-Theft System) / Gasoline engine
Trouble Diagnoses
WORK FLOW
NOTE
*NOTE: In rare case, "CHAIN OF ECM-IMMU" might be stored as a self-diagnostic result during key registration procedure, even if the system is not malfunctioning.
1
CHECK IN
2
Listen to customer complaints or request. (Get symptoms). NOTE: If customer reports a "No start" condition, request ALL KEYS to be brought to the Dealer in case of a NATS malfunction.
KEY SERVICE REQUEST
KEY SERVICE REQUEST (Additional key ID registration) → INITIALIZATION (Refer to CONSULT-II operation manual NATS.)
TROUBLE
3
TROUBLE
4
Verify the security indicator.
5
Using the CONSULT-II program card for NATS, check the "SELF-DIAG RESULTS" with CONSULT-II.
NATS + engine
Self-diagnostic results referring to NATS and "DON'T ERASE BEFORE CHECKING ENG DIAG" are displayed on CONSULT-II. (This means that engine trouble data has been detected in ECM.)
Self-diagnostic results referring to NATS and "DON'T ERASE BEFORE CHECKING ENG DIAG" are displayed on CONSULT-II. (This means that engine trouble data has been detected in ECM.)
Turn ignition switch "OFF".
Repair NATS according to self-diagnostic results referring to NATS. (If necessary, carry out "C/U INITIALIZATION" with CONSULT-II.*)
Do not erase the NATS "SELF-DIAG RESULTS" by using CONSULT-II.
Check the engine "SELF-DIAG RESULTS" with CONSULT-II by using the CONSULT-II generic program card. (Engine diagnostic software included)
NATS only
6
Self-diagnostic results referring to NATS, but no information about engine self-diagnostic results is displayed on CONSULT-II.
7
Turn ignition switch "OFF".
8
Repair NATS. (If necessary, carry out "C/U INITIALIZATION" with CONSULT-II.*)
9
Turn ignition switch "ON".
10
Erase the NATS "SELF-DIAG RESULTS" by using CONSULT-II. (TOUCH "ERASE")
11
Start the engine.
12
Verify no lighting up of the security indicator.
NG
return to step 5
OK
13
CHECK OUT
14
Perform running test with CONSULT-II in engine "SELF-DIAG RESULTS" mode.
15
Verify "NO DTC" displayed on the CONSULT-II screen.
OK
return to step 13
NG
return to step 5
See also
EC section · CONSULT-II Operation Manual — NATS