NATS (Nissan Anti-Theft System) / Diesel engine — Circuit Diagram — NATS (Supplement-VI)
EL-6047wiring diagramDiesel-specific NATS architecture. CSOLU = injection-pump shutoff solenoid (typical of mechanical diesel pumps with electronic fuel-cut).
Circuit Diagram — NATS
Wiring Schematic
Components (10)
Connections (10)
IGN
IGNF1Ignition feed
F1
F1IMMUIMMU pin 3
BAT
BATF2Battery feed
F2
F2IMMUIMMU pin 4
F3
F3INDSecurity indicator feed
IND
INDIMMUIMMU pin 11
IMMU
IMMUCSOLUIMMU pin 5 → CSOLU
IMMUDLCIMMU pins 6/7 → DLC
IMMUANTIMMU pins 2/1/10/12 → ANT pins 1/2/4/3
IMMUBATIMMU pin 9 → ground
NOTE
Diesel NATS differs from gasoline:
• 12-pin IMMU (vs 8-pin gasoline)
• Disables engine via CSOLU (Control Solenoid Unit — the diesel-injection-pump fuel-cut solenoid) instead of ECM authorisation
• Explicit NATS antenna amp component (gasoline has it integrated or shared)
• Built-in DATA LINK CONNECTOR pins for CONSULT programming
CSOLU = stop-solenoid on the diesel injector pump. NATS deactivates the solenoid to prevent fuel reaching the injectors.
WARNING
Diesel NATS faults can leave the car cranking but unable to fire because the CSOLU is shut. Diagnosing involves the CONSULT-II port wired into pins 6/7 of the IMMU directly.