B2621 INSIDE KEY ANTENNA 1

B2621

Description

Detects whether Intelligent Key is inside the vehicle.
Installed in the instrument center.

DTC DETECTION LOGIC

DTC No.	Trouble diagnosis name	DTC detecting condition	Possible cause
B2621	INSIDE ANTENNA 1 CIRCUIT	An excessive high or low voltage from inside antenna is sent to BCM.	Inside key antenna (instrument center) Between BCM and Inside key antenna (instrument center)

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

2.CHECK INSIDE KEY ANTENNA CIRCUIT

3.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

4.CHECK INTERMITTENT INCIDENT

(+)		(–)	Condition	Signal (Reference value.)
BCM
Connector	Terminal
M122	78, 79	Ground	Place Intelligent Key inside the vehicle.
			Place Intelligent Key outside the vehicle.

BCM		Inside key antenna (instrument center)		Continuity
Connector	Terminal	Connector	Terminal
M122	78	M75	2	Existed
	79		1

(+)		(–)	Condition	Signal (Reference value.)
BCM
Connector	Terminal
M122	78, 79	Ground	Place Intelligent Key inside the vehicle.
			Place Intelligent Key outside the vehicle.