B2621

B2621 INSIDE ANTENNA

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- Refer to "Diagnosis Procedure" .
NO- Inside key antenna (instrument center) is OK.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "INTELLIGENT KEY SYSTEM : Wiring Diagram" Intelligent Key System.

1. CHECK INSIDE KEY ANTENNA 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- GO TO 2.

2. CHECK INSIDE KEY ANTENNA CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM connector and inside key antenna (instrument center) connector.
3.Check continuity between BCM harness connector and inside key antenna (instrument center) harness connector.





4.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 (instrument center). (New antenna or other antenna)
2.Connect BCM connector and inside key antenna (instrument center) connector.
3.Turn ignition switch ON.
4.Check signal between BCM harness connector and ground using oscilloscope.





Is the inspection result normal?
YES- Replace inside key antenna (instrument center). Refer to "INSTRUMENT CENTER : Removal and Installation" Instrument Center.
NO- Replace BCM. Refer to "Removal and Installation" Service and Repair.