Check Inside Key Antenna

With CONSULT-II 

1. Check the operation with ("ANTENNA") in the ACTIVE TEST.
2. Touch "ROOM ANT1" "ROOM ANT2" "ROOM ANT3" "LUG ANT" on screen.
3. Carry the Intelligent Key into the antenna detection area.
   ACTIVE TEST
   
   

   Test item	Corresponding antenna
   ROOM ANT1	Inside key antenna instrument center
   ROOM ANT2	Inside key antenna console
   ROOM ANT3	Inside key antenna rear seat
   LUG ANT1	Inside key antenna trunk room

   Fig 1: CONSULT-II Display - Active Test

   

Do the hazard lamps flash? 

Yes: Inside key antenna is OK.

No: GO TO 2.

1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
   SIGNAL REFERENCE VALUE CHART
   
   

   Terminals				Condition	Signal (Reference value.)
   (+)			(-)
   Intelligent Key unit connector		Terminal
   M33	Instrument center	47	Ground	Any door is open → close
   	Console	49
   	Rear seat	51
   	Trunk room	53

OK or NG 

OK: Check the condition of harness and connector.

NG: GO TO 3.

Fig 2: Checking Signal Between Intelligent Key Unit Connector Terminals 47, 49, 51, 53 And Ground

1. Disconnect Intelligent Key unit and inside key antenna connector.
2. Check continuity between Intelligent Key unit connector and inside key antenna connector.
   TERMINAL CONTINUITY CHART
   
   

   A		B			Continuity
   Intelligent Key unit connector	Terminal	Inside key antenna connector		Terminal
   M33	47	M83	Instrument center	1	Yes
   	48			2
   	49	M142	Console	1
   	50			2
   	51	B45	Rear seat	1
   	52			2
   	53	B473	Trunk room	1
   	54			2

   Fig 3: Checking Continuity Between Intelligent Key Unit Connector And Inside Key Antenna Connector

   
3. Check continuity between Intelligent Key unit connector and ground.
   TERMINAL CONTINUITY CHART
   
   

   A			Ground	Continuity
   Intelligent Key unit connector		Terminal
   M33	Instrument center	47		No
   		48
   	Console	49
   		50
   	Rear seat	51
   		52
   	Trunk room	53
   		54

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness between Intelligent Key unit and inside key antenna.

1. Replace inside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit and inside key antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
   SIGNAL REFERENCE VALUE CHART
   
   

   Terminals				Condition	Signal (Reference value.)
   (+)			(-)
   Intelligent Key unit connector		Terminal
   M33	Instrument center	47	Ground	Any door is open → close
   	Console	49
   	Rear seat	51
   	Trunk room	53

   Fig 4: Checking Signal Between Intelligent Key Unit Connector Terminals 47, 49, 51, 53 And Ground

   

OK or NG 

OK: Replace malfunction inside key antenna.

NG: Replace Intelligent Key unit.