Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: XM Tuner Antenna Disconnected (B15FE,B15FF)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the telephone antenna assembly which is connected to the radio receiver assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15FE	XM Tuner Antenna Disconnected	The telephone antenna assembly is not connected	Antenna cord sub-assembly No. 2 antenna cord sub-assembly No. 6 antenna cord sub-assembly Telephone antenna assembly Radio receiver assembly
B15FF	XM Tuner Antenna Short	A short occurs in the telephone antenna assembly	Antenna cord sub-assembly No. 2 antenna cord sub-assembly No. 6 antenna cord sub-assembly Telephone antenna assembly Radio receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

Click here

PROCEDURE

1.	REPLACE ANTENNA CORD SUB-ASSEMBLY

(a) Replace the antenna cord sub-assembly with a new or known good one.

w/ Rear No. 2 Seat: Click here

w/o Rear No. 2 Seat: Click here

(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(c) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END

NG

2.	REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

(a) Replace the No. 2 antenna cord sub-assembly with a new or known good one.

w/ Rear No. 2 Seat: Click here

w/o Rear No. 2 Seat: Click here

(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(c) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END

NG

3.	REPLACE NO. 6 ANTENNA CORD SUB-ASSEMBLY

(a) Replace the No. 6 antenna cord sub-assembly with a new or known good one.

w/ Rear No. 2 Seat: Click here

w/o Rear No. 2 Seat: Click here

(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(c) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END

NG

4.	REPLACE TELEPHONE ANTENNA ASSEMBLY

(a) Replace the telephone antenna assembly with a new or known good one.

Click here

(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(c) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END

NG

REPLACE RADIO RECEIVER ASSEMBLY