NATS (Nissan Anti-Theft System) / Gasoline engine — Trouble Diagnoses (Cont'd) — Symptom Matrix Chart 2 + Diagnostic System Diagram (Supplement-VII)
EL-7064flowchartNATS symptom matrix chart 2 (non-DTC symptom — security indicator not lighting up). Diagnostic system diagram with A-F part references. PART E = key transponder chip.
Trouble Diagnoses (Cont'd)
SYMPTOM MATRIX CHART 2 (Non self-diagnosis related item)
Security ind. does not light up.
Diagnostic procedure (Reference page)PROCEDURE 7 (EL-7072)
System (Malfunctioning part or mode)Security ind.
Reference part no. of illustration on diagnostic system diagram—
Security ind. does not light up.
Diagnostic procedure (Reference page)PROCEDURE 7 (EL-7072)
System (Malfunctioning part or mode)Open circuit between Fuse and NATS IMMU
Reference part no. of illustration on diagnostic system diagram—
Security ind. does not light up.
Diagnostic procedure (Reference page)PROCEDURE 7 (EL-7072)
System (Malfunctioning part or mode)Continuation of initialization mode
Reference part no. of illustration on diagnostic system diagram—
Security ind. does not light up.
Diagnostic procedure (Reference page)PROCEDURE 7 (EL-7072)
System (Malfunctioning part or mode)NATS IMMU
Reference part no. of illustration on diagnostic system diagramA
DIAGNOSTIC SYSTEM DIAGRAM
NOTE
System diagram with parts labelled A-F:
• PART A — NATS IMMU
• PART B — ECM
• PART C1 — Battery voltage line of IMMU (pin 8)
• PART C2 — Ignition line of IMMU (pin 7)
• PART C3 — Ground line of IMMU (pin 4)
• PART C4 — Communication line between IMMU and ECM (pin 1 ↔ ECM pin 88)
• PART D — NATS ignition key
• PART E — Key ID chip (transponder inside key)
• PART F — CONSULT-II diagnostic connection
Use these reference letters with the symptom matrix charts on EL-7063 and above to identify which part to test for a given DTC.