Inside Key Antenna Check

INTELLIGENT KEY SYSTEM


Inside Key Antenna Check

1.CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.











OK or NG
OK - Inside key antenna is OK.
NG - GO TO 2.
2.CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector and inside key antenna connectors.
2. Check continuity between inside key antenna harness connector M25 (B) (instrument panel), B18 (B)
(front console), B45 (B) (rear parcel shelf) terminals 1, 2 and Intelligent Key unit harness connector M42
(A) terminals 13, 14, 15, 16, 33 and 34.










3. Check continuity between Intelligent Key unit harness connector
M42 (A) terminals 13, 14, 15, 16, 33, 34 and ground.





OK or NG
OK - GO TO 3.
NG - Repair or replace harness between inside key antenna and Intelligent Key unit.
3.CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Replace inside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector.





3. Check signal between Intelligent Key unit connector and ground with oscilloscope.






OK or NG
OK - Replace inside key antenna.
NG - Replace Intelligent Key unit. Service and Repair .