Toyota Avalon (XX50) 2019-2022 Service & 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 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

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

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(b) Clear the DTCs.

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

OK:

No DTCs are output.

OK

END

NG

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

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(b) Clear the DTCs.

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

OK:

No DTCs are output.

OK

END

NG

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

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(b) Clear the DTCs.

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

OK:

No DTCs are output.

OK

END

NG

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

Click here

(b) Clear the DTCs.

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

OK:

No DTCs are output.

OK

END

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY