Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Radio Broadcast cannot be Received or Poor Reception

Toyota Tacoma 2015-2018 Service Manual / Audio / Video / Audio And Visual System / Radio Broadcast cannot be Received or Poor Reception

PROCEDURE

1.

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Check the radio automatic station search function.

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

Result

Result

Proceed to

Automatic station search function does not stop

A

Automatic station search function stops on a station

B

B

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

A

2.

CHECK OPTIONAL COMPONENTS

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

Result

Result

Proceed to

Optional components are not installed

A

Optional components are installed

B

NOTICE:

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

B

REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

A

3.

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Preparation for check

(1) Remove the antenna connector from the radio and display receiver assembly.

(b) Check for noise

(1) Turn the ignition switch to ACC with the radio and display receiver assembly connector connected.

(2) Turn the radio 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.

NG

REPAIR RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

4.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Disconnect the radio and display receiver assembly connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

RA-5 (ANT+) - Body ground

Ignition switch ACC

Radio switch on and FM or AM selected

11 to 14 V

Text in Illustration

*a

Component without harness connected

(Radio and Display Receiver Assembly)

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

5.

REPLACE ANTENNA CORD SUB-ASSEMBLY

(a) Replace the antenna cord sub-assembly and check if radio broadcasts can be received normally (See page OK: ).

OK:

Radio broadcasts can be received normally.

OK

END

NG

6.

REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

(a) Replace the No. 2 antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally (See page OK: ).

OK:

Radio broadcasts can be received normally.

OK

END

NG

7.

REPLACE ANTENNA ASSEMBLY WITH HOLDER

(a) Replace the antenna assembly with holder and check if radio broadcasts can be received normally (See page OK: ).

OK:

Radio broadcasts can be received normally.

OK

END

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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