DTC B15C0: GPS Antenna Connection Malfunction (short); DTC B15C1: GPS Antenna Connection Malfunction (break) [10/2015 - 03/2018]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

   Body Electrical > Navigation System > Clear DTCs 

2. 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 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 03/2018] 

Result: 

NG 

See step  2

1. Remove the antenna cord sub-assembly.

   Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 12/2017] , or refer to REMOVAL [12/2017 - 08/2019]

2. Measure the resistance according to the value (s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Antenna Cord Sub-assembly)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Antenna Cord Sub-assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A1-3 - B1-1	Always	Below 1 Ω
   A1-3a - B1-1a	Always	Below 1 Ω
   A1-3 or B1-1 - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 12/2017]  , or refer to  REMOVAL [12/2017 - 08/2019] 

Result: 

OK 

See step  3

1. Remove the navigation antenna assembly.

   Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 08/2019]

2. Inspect the navigation antenna assembly.

   Refer to INSPECTION [10/2015 - 08/2019]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018] 

Result: 

NG 

REPLACE NAVIGATION ANTENNA ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019]