B2190

B2190 NATS ANTENNA AMP.





Description
Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock (models with steering lock unit) or start of engine when an unregistered
ID of Intelligent Key is used.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE 1
1. Insert Intelligent Key into the key slot.
2. Check "Self-diagnosis result" using CONSULT-III.
Is DTC detected?
YES - Go to SEE Diagnosis Procedure.
NO - GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE 2
1. Press the push-button ignition switch.
2. Check "Self-diagnosis result" using CONSULT-III.
Is DTC detected?
YES - Go to SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1. INSPECTION START
Perform inspection in accordance with the appropriate confirmation procedure DTC.
Which procedure confirms DTC?
DTC confirmation procedure 1-GO TO 2.
DTC confirmation procedure 2-GO TO 4.
2.CHECK KEY SLOT INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between key slot harness connector and ground.





Is the inspection result normal?
YES - Replace key slot. Removal And Installation.
NO - GO TO 3.
3.CHECK KEY SLOT CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between key slot harness connector and BCM harness connector.





3. Check continuity between key slot harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation.
NO - Repair or replace harness.
4.CHECK PUSH-BUTTON IGNITION SWITCH OPERATION
Press push-button ignition switch and check if it turns ON.
Does ignition switch turn to ON?
YES - GO TO 5.
NO - GO TO 7.
5.CHECK KEY SLOT COMMUNICATION SIGNAL
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between key slot harness connector and ground.





Is the inspection result normal?
YES - Replace key slot. Removal And Installation.
NO - GO TO 6.
6.CHECK KEY SLOT COMMUNICATION SIGNAL CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between key slot harness connector and BCM harness connector.





3. Check continuity between key slot harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation.
NO - Repair or replace harness.
7.CHECK KEY SLOT GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check continuity between key slot harness connector and ground.





Is the inspection result normal?
YES - GO TO 8.
NO - Repair or replace harness.
8.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END