Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1 
   1. Turn ignition switch OFF.
   2. Check signal between BCM harness connector and ground using oscilloscope.

      (+)		(-)	Condition		Signal (Reference value)
      BCM
      Connector	Terminal
      M80	121, 122	Ground	When the driver door request switch is operated with ignition switch OFF	When Intelligent Key is in the antenna detection area (The distance between Intelligent Key and antenna: 80 cm or less)
      				When Intelligent Key is not in the antenna detection area (The 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.

2. CHECK OUTSIDE KEY ANTENNA CIRCUIT 
   1. Disconnect BCM connector and outside key antenna (driver side) connector.
   2. 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
      M80	122	D5	1	Yes
      	121		2

   3. Check continuity between BCM harness connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M80	122		Not existed
      	121

      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 (driver side). (New antenna or other antenna)
   2. Connect BCM connector and outside key antenna (driver side) connector.
   3. Check signal between BCM harness connector and ground using oscilloscope.

      (+)		(-)	Condition		Signal (Reference value)
      BCM
      Connector	Terminal
      M80	121, 122	Ground	When the driver door request switch is operated with ignition switch OFF	When Intelligent Key is in the antenna detection area (The distance between Intelligent Key and antenna: 80 cm or less)
      				When Intelligent Key is not in the antenna detection area (The distance between Intelligent Key and antenna: Approx. 2 m)

      Is the inspection result normal? 

      YES: Replace outside key antenna (driver side). Refer to "DRIVER SIDE: REMOVAL AND INSTALLATION ".

      NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".