Outside Key Antenna (Rear Bumper)

OUTSIDE KEY ANTENNA (REAR BUMPER)

Component Function Check


1. CHECK OUTSIDE KEY ANTENNA (REAR BUMPER)

1.Place the Intelligent Key into the detection area of the outside key antenna (rear bumper).
2.Press the door request switch (trunk).
Does the door unlock?
YES- Inspection End.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Intelligent Key System.

1. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

1.Turn ignition switch OFF.
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 OUTSIDE KEY ANTENNA CIRCUIT

1.Disconnect BCM connector and outside key antenna (rear bumper) connector.
2.Check continuity between BCM harness connector and outside key antenna (rear bumper) 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 OUTSIDE KEY ANTENNA INPUT SIGNAL 2

1.Replace outside key antenna (rear bumper). (New antenna or other antenna)
2.Connect BCM and outside key antenna (rear bumper) connector.
3.Check signal between BCM harness connector and ground using oscilloscope.





Is the inspection result normal?
YES- Replace outside key antenna (rear bumper). Refer to "REAR BUMPER : Removal and Installation" Rear Bumper.
NO- Replace BCM. Refer to "Removal and Installation" Service and Repair.