Symptom Matrix Chart 1 (Self-Diagnosis Related Item)
PROBLEM SYMPTOM TABLE - NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS (SELF-DIAGNOSIS)
| SYMPTOM | Displayed "SELF-DIAG RESULTS" on CONSULT-II screen. | DIAGNOSTIC PROCEDURE | SYSTEM (Malfunctioning part or mode) |
REFERENCE PART NO. OF ILLUSTRATION | ||
|---|---|---|---|---|---|---|
| ECM INT CIRC-IMMU | PROCEDURE 1 | ECM | B | |||
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In rare cases, "CHAIN OF ECM-IMMU" might be stored during key registration procedure, even if the system is not malfunctioning. | - | ||||
| CHAIN OF ECM-IMMU | PROCEDURE 2 | Open circuit in battery voltage line of IMMU circuit | C1 | |||
| Open circuit in ignition line of IMMU circuit | C2 | |||||
| Open circuit in ground line of IMMU circuit | C3 | |||||
| Open circuit in communication line between IMMU and ECM | C4 | |||||
| Short circuit between IMMU and ECM communication line and battery voltage line | C4 | |||||
| Short circuit between IMMU and ECM communication line and ground line | C4 | |||||
| ECM | B | |||||
| IMMU | A | |||||
| DIFFERENCE OF KEY | PROCEDURE 3 | Unregistered key | D | |||
| IMMU | A | |||||
| CHAIN OF IMMU-KEY | PROCEDURE 4 | Malfunction of key ID chip | E | |||
| IMMU | A | |||||
| ID DISCORD, IMM-ECM | PROCEDURE 5 | System initialization has not yet been completed. | F | |||
| ECM | F | |||||
| LOCK MODE | PROCEDURE 7 | LOCK MODE | D | |||
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DON'T ERASE BEFORE CHECKING ENG DIAG | WORK FLOW | Engine trouble data and NVIS (NATS) trouble data have been detected in ECM | - | ||
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