B2623

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Select "INTELLIGENT KEY" of "BCM" using CONSULT.
2.Select "INSIDE ANT DIAGNOSIS" in "WORK SUPPORT" mode.
3.Perform inside key antenna ("INSIDE ANT DIAGNOSIS") on "WORK SUPPORT" of "INTELLIGENT
KEY".
4.Check BCM for DTC.
Is inside key antenna DTC detected?
YES- .
NO- Inside key antenna (trunk room) is OK.


Diagnosis Procedure


1. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

1.Turn ignition switch OFF.
2.Check signal between BCM harness connector and ground with oscilloscope.





Is the inspection result normal?
YES- Replace BCM. Service and Repair.
NO- GO TO 2.

2. CHECK INSIDE KEY ANTENNA CIRCUIT

1.Disconnect BCM connector and inside key antenna (trunk room) connector.
2.Check continuity between BCM harness connector and inside key antenna (trunk room) harness connector.





3.Check continuity between BCM harness connector and ground.





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

3. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.Replace inside key antenna (trunk room). (New antenna or other antenna)
2.Connect BCM connector and inside key antenna (trunk room) connector.
3.Check signal between BCM harness connector and ground with oscilloscope.





Is the inspection result normal?
YES- Replace inside key antenna (trunk room).
NO- Replace BCM. Service and Repair.