B2198

B2198 NATS ANTENNA AMP.

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE 1

1.Contact Intelligent Key back side to push-button ignition switch.
2.Check DTC in "Self-Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- GO TO "Diagnosis Procedure" .
NO- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE 2

1.Press the push-button ignition switch.
2.Check DTC in "Self-Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- GO TO "Diagnosis Procedure" .
NO- Inspection End.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Infiniti Vehicle Immobilizer System-NATS.

1. CONNECTOR INSPECTION

1.Disconnect BCM and NATS antenna amp.
2.Check connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace as necessary.

2. CHECK NATS ANTENNA AMP. CIRCUIT

1.Disconnect BCM connector and NATS antenna amp. connector.
2.Check continuity between BCM harness connector and NATS antenna amp. harness connector.





3.Check continuity between BCM harness connector and ground.
Revision: March 20122013 Infiniti JX





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK NATS ANTENNA AMP INPUT SIGNAL 1

1.Turn ignition switch ON.
2.Check signal between BCM harness connector and ground using oscilloscope.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Replace NATS antenna amp. Refer to "Removal and Installation" Removal and Installation.
Revision: March 20122013 Infiniti JX