Diagnosis Procedure
- CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
- Turn Ignition Switch ON.
- Check signal between BCM harness connector and ground using oscilloscope.
(+)
(-)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M123
78
79
Ground
When the driver door request switch is operated with Ignition Switch ON
When Intelligent Key is in the antenna detection area
(distance between Intelligent Key and antenna: 80 cm or less)
When Intelligent Key is not in the antenna detection area
(distance between Intelligent Key and antenna: Approx. 2 m)
Is the inspection result normal?
YES
Replace BCM. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK OUTSIDE KEY ANTENNA CIRCUIT
- Turn Ignition Switch OFF.
- Disconnect BCM connector and outside key antenna (driver side) connector.
- Check continuity between BCM harness connector and outside key antenna (driver side) harness connector.
BCM
Outside key antenna (driver side)
Continuity
Connector
Terminal
Connector
Terminal
M123
78
D14
1
Existed
79
2
- Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M123
78
Not existed
79
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness.
- CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
- Replace outside key antenna (driver side). (New antenna or other antenna)
- Connect BCM connector and outside key antenna (driver side) connector.
- Turn Ignition Switch ON.
- Check signal between BCM harness connector and ground using oscilloscope.
(+)
(-)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M123
78
79
Ground
When the driver door request switch is operated with Ignition Switch ON
When Intelligent Key is in the antenna detection area
(distance between Intelligent Key and antenna: 80 cm or less)
When Intelligent Key is not in the antenna detection area
(distance between Intelligent Key and antenna: Approx. 2 m)
Is the inspection result normal?
YES
Replace outside key antenna (driver side).
NO
Replace BCM. Refer to Removal and Installation .