Outside Key Antenna Check

1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector M42 terminals 17, 19, 37 and ground with an oscilloscope.
   CONNECTOR TERMINAL SIGNAL SPECIFICATION
   
   

   Connector	Item	Terminals		Condition	Signal (Reference value)
   		(+)	(-)
   M42	Rear bumper antenna	17	Ground	Request switch is pushed
   	Front outside antenna LH	19
   	Front outside antenna RH	37

   Fig 1: Checking Signal Between Intelligent Key Unit Connector M42 Terminals 17, 19, 37 And Ground

   

OK or NG 

OK: Outside key antenna is OK.

NG: GO TO 2.

1. Disconnect Intelligent Key unit connector and outside key antenna connector.
2. Check continuity between each outside key antenna harness connector D4 (B) (LH) or D103 (B) (RH), rear bumper antenna connector B49 (C) terminals 1, 2 and Intelligent Key unit harness connector M42 (A) terminals 17, 18, 19, 20, 37, and 38.
   CONNECTOR TERMINAL CONTINUITY SPECIFICATION
   
   

   Item	Connector	Terminal	Connector	Terminal	Continuity
   Rear bumper antenna	C: B49	1	A: M42	17	Yes
   		2		18
   Front outside antenna LH	B: D4	1		19
   		2		20
   Front outside antenna RH	B: D103	1		37
   		2		38

3. Check continuity between each outside key antenna harness connector terminals 1, 2 and ground.
   CONNECTOR TERMINAL CONTINUITY SPECIFICATION
   
   

   Item	Connector		Terminal	Continuity
   Rear bumper antenna	C: B49	1	Ground	No
   		2
   Front outside antenna LH	B: D4	1
   		2
   Front outside antenna RH	B: D103	1
   		2

OK or NG 

OK: GO TO 3.

NG: Replace harness between outside key antenna and Intelligent Key unit.

Fig 2: Checking Continuity Between Each Outside Key Antenna Harness Connector Terminals 1, 2 And Ground

1. Replace outside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector and outside key antenna connector.
3. Check signal between Intelligent Key unit connector terminals 17, 19, 37 and ground with an oscilloscope.
   CONNECTOR TERMINAL SIGNAL SPECIFICATION
   
   

   Connector	Item	Terminals		Condition	Signal (Reference value)
   		(+)	(-)
   M42	Rear bumper antenna	17	Ground	Request switch is pushed
   	Front outside antenna LH	19
   	Front outside antenna RH	37

   Fig 3: Checking Signal Between Intelligent Key Unit Connector Terminals 17, 19, 37 And Ground

   

OK or NG 

OK: Replace outside key antenna.

NG: Replace Intelligent Key unit. Refer to "REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT ".