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5 CHECK COMMUNICATION LINE OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check harness continuity between ECM terminal 116 and IMMU terminal 1.
SEL305WD
OK or NG
OK © GO TO 6.
NG © Repair harness or connector.
Ref. part No. C4
6 CHECK COMMUNICATION LINE BATTERY SHORT CIRCUIT
1. Turn ignition ON.
2. Check voltage between ECM terminal 116 or IMMU terminal 1 and ground.
SEL306WD
OK or NG
OK © GO TO 7.
NG © Communication line is short-circuited with battery voltage line or ignition switch ON line.
Repair harness or connectors.
Ref. part No. C4
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM — NATS)
Trouble Diagnoses (Cont’d)
EL-396
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