NATS / Gasoline engine — CONSULT-II (Cont'd) — Self-Diagnostic Results Item Chart
EL-7061spec tableP-codes P1610-P1615 are reserved for NATS faults in the engine ECM self-diag list. LOCK MODE is the most user-visible failure — triggered after 5 consecutive start attempts with an unregistered key or with IMMU/ECM malfunction; the only recovery is CONSULT-II initialization.
NATS (Nissan Anti-Theft System) / Gasoline engine
CONSULT-II (Cont'd)
SELF-DIAGNOSTIC RESULTS ITEM CHART
ECM INT CIRC-IMMU
P NO. Code (Self-diagnostic result of "ENGINE")NATS MALFUNCTION P1613
Malfunction is detected when ...The malfunction of ECM internal circuit of IMMU communication line is detected.
Reference pageEL-7065
CHAIN OF EC-IMMU
P NO. Code (Self-diagnostic result of "ENGINE")NATS MALFUNCTION P1612
Malfunction is detected when ...Communication impossible between ECM and IMMU. (In rare case, "CHAIN OF ECM-IMMU" might be stored during key registration procedure, even if the system is not malfunctioning.)
Reference pageEL-7066
DIFFERENCE OF KEY
P NO. Code (Self-diagnostic result of "ENGINE")NATS MALFUNCTION P1615
Malfunction is detected when ...IMMU can receive the key ID signal but the result of ID verification between key ID and IMMU is NG.
Reference pageEL-7068
CHAIN OF IMMU-KEY
P NO. Code (Self-diagnostic result of "ENGINE")NATS MALFUNCTION P1614
Malfunction is detected when ...IMMU cannot receive the key ID signal.
Reference pageEL-7069
ID DISCORD, IMM-ECM
P NO. Code (Self-diagnostic result of "ENGINE")NATS MALFUNCTION P1611
Malfunction is detected when ...The result of ID verification between IMMU and ECM is NG. System initialization is required.
Reference pageEL-7070
DON'T ERASE BEFORE CHECKING ENG DIAG
P NO. Code (Self-diagnostic result of "ENGINE")—
Malfunction is detected when ...Engine trouble data and NATS trouble data have been detected in ECM.
Reference pageEL-7072
LOCK MODE
P NO. Code (Self-diagnostic result of "ENGINE")NATS MALFUNCTION P1610
Malfunction is detected when ...When the starting operation is carried out 5 or more items consecutively under the following conditions, NATS will shift the mode to one which prevents the engine from being started.
• unregistered ignition key is used
• IMMU or ECM malfunctioning
Reference pageEL-7071
See also
EL-7065NATS / Gasoline engine — Trouble Diagnoses (Cont'd) — Diagnostic Procedure 1 ("ECM INT CIRC-IMMU")EL-7066NATS / Gasoline engine — Trouble Diagnoses (Cont'd) — Diagnostic Procedure 2 ("CHAIN OF ECM-IMMU")EL-7068NATS / Gasoline engine — Diagnostic Procedure 3 ("DIFFERENCE OF KEY")EL-7069NATS / Gasoline engine — Diagnostic Procedure 4 ("CHAIN OF IMMU-KEY")EL-7070NATS / Gasoline engine — Diagnostic Procedure 5 ("ID DISCORD, IMM-ECM")EL-7071NATS / Gasoline engine — Diagnostic Procedure 6 ("LOCK MODE")EL-7072NATS (Nissan Anti-Theft System) / Gasoline engine — Trouble Diagnoses (Cont'd) — Diagnostic Procedure 7 (SECURITY IND. DOES NOT LIGHT UP) (Supplement-VII)