DTC B15C0: GPS Antenna Connection Malfunction (short); DTC B15C1: GPS Antenna Connection Malfunction (break) [03/2017 - 06/2017]: Procedure

1. Clear the DTCs.

   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 [03/2017 - 06/2017] 

Result: 

NG 

See step  2

1. Remove the telephone and GPS antenna cord.

   Refer to REMOVAL [03/2017 - 06/2017]

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Telephone and GPS Antenna cord)

   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 TELEPHONE AND GPS ANTENNA CORD. Refer to  REMOVAL [03/2017 - 06/2017] 

Result: 

OK 

See step  3

1. Remove the telephone and GPS antenna assembly.

   Refer to REMOVAL [03/2017 - 06/2017]

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Telephone and GPS Antenna Assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   3 - 3a	Always	50 to 500 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

Result: 

NG 

REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017]