Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: XM Tuner Antenna Disconnected (B15FE,B15FF)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Audio / Video / Audio And Visual System(for Hv Model) / 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 and display receiver assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15FE	XM Tuner Antenna Disconnected	The telephone antenna assembly is not connected	No. 4 antenna cord sub-assembly No. 3 antenna cord sub-assembly No. 2 antenna cord sub-assembly Telephone antenna assembly Radio and display receiver assembly
B15FF	XM Tuner Antenna Short	A short occurs in the telephone antenna assembly	No. 4 antenna cord sub-assembly No. 3 antenna cord sub-assembly No. 2 antenna cord sub-assembly Telephone antenna assembly Radio and display 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 Audio and Visual System.
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When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.

PROCEDURE

1.	REPLACE NO. 4 ANTENNA CORD SUB-ASSEMBLY

(a) Replace the No. 4 antenna cord sub-assembly with a new or known good one.

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(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

END

2.	REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY

(a) Replace the No. 3 antenna cord sub-assembly with a new or known good one.

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(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

END

3.	REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

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

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(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

END

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

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

END

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

AV Signal Stoppage (Low Battery Voltage) (B158F)

See More:

Toyota Avalon (XX50) 2019-2022 Owners Manual > Steps to take in an emergency: If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your Toyota dealer. Warning li ...