DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short [10/2018 - 10/2019]: Procedure

1. Check if the roof antenna assembly cable is securely connected to the radio receiver assembly.

   OK

   Telephone antenna assembly cable is securely connected.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

SECURELY CONNECT ROOF ANTENNA ASSEMBLY CABLE 

Result: 

OK 

See step  2

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2018 - 10/2019]

   Body Electrical > Navigation System > Clear DTCs 

2. Recheck for DTCs and check that no DTCs are output.

   Refer to DTC CHECK / CLEAR [10/2018 - 10/2019]

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ] 

Result: 

NG 

See step  3

1. Disconnect the antenna connector from the telephone antenna assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Telephone Antenna Assembly)
   *b	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)

2. Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A-3 - B-3	Always	Below 1 Ω
   A-3a - B-3a	Always	Below 1 Ω
   A-3 - Body ground	Always	10 kΩ or higher
   A-3a - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE NO. 4 ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022] 

Result: 

OK 

See step  4

1. Disconnect the antenna connector from the No. 4 antenna cord sub-assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 4 Antenna Cord Sub-assembly)
   *b	Front view of wire harness connector (to Antenna Cord Sub-assembly)

2. Disconnect the antenna connector from the antenna cord sub-assembly.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B-3 - C-3	Always	Below 1 Ω
   B-3a - C-3a	Always	Below 1 Ω
   B-3 - Body ground	Always	10 kΩ or higher
   B-3a - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022] 

Result: 

OK 

See step  5

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

   Refer to REMOVAL [10/2018 - 07/2022]

2. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

3. Recheck for DTCs and check that no DTCs are output.

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (ANTENNA CORD SUB-ASSEMBLY IS DEFECTIVE) 

Result: 

NG 

See step  6

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

   Refer to REMOVAL [10/2018 - ]

2. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2018 - 10/2019]

   Body Electrical > Navigation System > Clear DTCs 

3. Recheck for DTCs and check that no DTCs are output.

   Refer to DTC CHECK / CLEAR [10/2018 - 10/2019]

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (TELEPHONE ANTENNA ASSEMBLY IS DEFECTIVE) 

Result: 

NG 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2018 - 10/2019]