 1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
- Turn ignition switch OFF.
- Check signal between BCM harness connector and ground using oscilloscope.
(+)
| (–)
| Condition
| Signal (Reference value.)
| BCM
| Connector
| Terminal
| Driver side
| M122
| 76, 77
| Ground
| Door request switch or trunk lid opener request switch is pressed.
| When Intelligent Key is in the antenna detection area.
|

| Passenger side
| 74, 75
| Rear bumper
| M121
| 38, 39
| When Intelligent Key is not in the antenna detection area.
|

|
Is the inspection result normal?
YES >>Replace BCM. Refer to Removal and InstallationNO >>GO TO 2.
 2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
- Disconnect BCM connector and malfunctioning outside key antenna connector.
- Check continuity between BCM harness connector and outside key antenna harness connector.
Outside key antenna
| BCM
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| Driver side
| D24
| 1
| M122
| 77
| Existed
| 2
| 76
| Passenger side
| D54
| 1
| 75
| 2
| 74
| Rear bumper
| B60
| 1
| M121
| 39
| 2
| 38
|
- Check continuity between malfunctioning outside key antenna harness connector and ground.
Outside key antenna
| Ground
| Continuity
| Connector
| Terminal
| Driver side
| D24
| 1
| Not existed
| 2
| Passenger side
| D54
| 1
| 2
| Rear bumper
| B60
| 1
| 2
|
Is the inspection result normal?
YES >>GO TO 3. NO >>Repair or replace harness.
 3.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
- Replace malfunctioning outside key antenna. (New antenna or other antenna)
- Connect BCM connector and outside key antenna connector.
- Check signal between BCM harness connector and ground using oscilloscope.
(+)
| (–)
| Condition
| Signal (Reference value.)
| BCM
| Connector
| Terminal
| Driver side
| M122
| 76, 77
| Ground
| Door request switch or trunk lid opener request switch is pressed.
| When Intelligent Key is in the antenna detection area.
|

| Passenger side
| 74, 75
| Rear bumper
| M121
| 38, 39
| When Intelligent Key is not in the antenna detection area.
|

|
Is the inspection result normal?
YES >>INSPECTION END NO >>Replace BCM. Refer to Removal and Installation.
|