Nissan Versa

 Sedan Service Manual

Body exterior, doors, roof & vehicle security » Security control system (SEC) » B2190, P1614 NATS antenna AMP
Diagnosis Procedure

Regarding Wiring Diagram information, refer to SEC "Wiring Diagram".

1.CHECK NATS ANTENNA AMP. INSTALLATION

Check NATS antenna amp. installation. Refer to SEC "Removal and Installation".

Is the inspection result normal?

YES >> GO TO 2

NO >> Reinstall NATS antenna amp. correctly.

2.CHECK NVIS (NATS) IGNITION KEY ID CHIP

Start engine with another registered NATS ignition key.

Does the engine start?

YES >>

• Ignition key ID chip is malfunctioning.
• Replace the ignition key.
• Perform initialization with CONSULT.
• For initialization, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

NO >> GO TO 3

3.CHECK POWER SUPPLY FOR NATS ANTENNA AMP.

1. Turn ignition switch ON.

2. Check voltage between NATS antenna amp. connector M21 terminal 1 and ground.

1 - Ground : Battery voltage

Is the inspection result normal?

YES >> GO TO 4

NO >> Repair or replace fuse or harness.

4.CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect NATS antenna amp. connector.

3. Check continuity between NATS antenna amp. connector M21 terminal 3 and ground.

Is the inspection result normal?

YES >> GO TO 5

NO >>  Repair or replace harness.

NOTE: If harness is OK, replace BCM BCS "Removal and Installation". Perform initialization with CONSULT. For initialization, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1

1. Connect NATS antenna amp. connector.

2. Turn ignition switch ON.

3. Check voltage between NATS antenna amp. connector M21 terminal 2 and ground with analog tester.

Is the inspection result normal?

YES >> GO TO 6

NO >> Repair or replace harness.

NOTE: If harness is OK, replace BCM BCS "Removal and Installation". Perform initialization with CONSULT. For initialization, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2

Check voltage between NATS antenna amp. connector M21 terminal 4 and ground with analog tester.

 Is the inspection result normal?

YES >> NATS antenna amp. is malfunctioning. Replace NATS antenna amp. Refer to SEC "Removal and Installation".

NO >>  Repair or replace harness.

NOTE: If harness is OK, replace BCM, refer to BCS "Removal and Installation". Perform initialization with CONSULT. For initialization, refer to CONSULT Immobilizer mode and follow the onscreen instructions.

DTC Logic

Diagnosis Procedure