P1614

P1614 CHAIN OF IMMU-KEY





Description
Performs ID verification through BCM and NATS antenna amplifier when ignition knob switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of mechanical key is used.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Insert mechanical key into the key cylinder.
2. Press the ignition knob switch.
3. Check "Self diagnostic result" with CONSULT-III.
Is DTC detected?
YES - P1614.
NO - Inspection End.




Diagnosis Procedure
Regarding Wiring Diagram information, IVIS.
1.CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Service and Repair.
Is the inspection result normal?
YES - GO TO 2
NO - Reinstall NATS antenna amp. correctly.
2.CHECK IVIS (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-III.
For initialization, refer to "CONSULT-III Operation Manual".
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.

3 - Ground : Continuity should exist.






Is the inspection result normal?
YES - GO TO 5
NO - � Repair or replace harness.

NOTE:
If harness is OK, replace BCM, Service and Repair. Perform initialization with
CONSULT-III. For initialization, refer to "CONSULT-III
Operation Manual".
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, Service and Repair. Perform initialization with CONSULT-III. For initialization, refer to "CONSULT-III Operation Manual".
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.
NO - � Repair or replace harness.

NOTE:
If harness is OK, replace BCM, Service and Repair. Perform initialization with CONSULT-III. For initialization, refer to "CONSULT-III Operation Manual".