Radio Broadcast cannot be Received or Poor Reception [10/2022 - ]: Procedure

1. Check the radio automatic station search function by activating it.

   OK

   Automatic station search function stops on a station.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ]

Result: 

NG 

See step  2

1. Check if any optional components that may decrease reception capacity, such as sunshade film or a roof antenna, are installed.

   OK

   Optional components are not installed.

   NOTE:

   Do not remove optional components without the permission of the customer.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE) 

Result: 

OK 

See step  3

1. Preparation for check

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   1. Disconnect the RA radio and display receiver assembly connector.
2. Check for noise
   1. Turn the ignition switch to ON with the radio and display receiver assembly connector connected.
   2. Turn the radio and display receiver assembly on and tune into AM mode.
   3. Place a screwdriver, thin wire or other metal object on the radio and display receiver assembly antenna jack and check that noise can be heard from the speakers.

      OK

      Noise can be heard from the speakers.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

Result: 

OK 

See step  4

1. Disconnect the RA radio and display receiver assembly connector.
2. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Radio and Display Receiver Assembly)

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   RA-1 (ANT+) - Body ground	Ignition switch ACC Radio switch on	7.0 to 16.0 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

Result: 

OK 

See step  5

1. Replace the antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally.

   Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - 11/2024] , or refer to REMOVAL [11/2024 - ]

   OK

   Radio broadcasts can be received normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  6

1. Replace the No. 3 antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally.

   Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - 11/2024] , or refer to REMOVAL [11/2024 - ]

   OK

   Radio broadcasts can be received normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  7

1. Replace the No. 4 antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally.

   Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - 11/2024] , or refer to REMOVAL [11/2024 - ]

   OK

   Radio broadcasts can be received normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  8

1. Replace the roof antenna assembly with a new or known good one and check if radio broadcasts can be received normally.

   Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

   OK

   Radio broadcasts can be received normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]