Toyota CH-R Service Manual: Radio Broadcast cannot be Received or Poor Reception

PROCEDURE

(a) Check the radio automatic station search function.

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

B

REPLACE RADIO RECEIVER ASSEMBLY

A

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

NOTICE:

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

A

REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

B

(a) Preparation for check (1) Disconnect the antenna connector from the radio receiver assembly.

(b) Check for noise

(1) Turn the ignition switch to ACC with the radio receiver assembly connectors connected.

(2) Turn the radio receiver assembly on and enter AM mode.

(3) Place a screwdriver, thin wire or other metal object on the radio receiver assembly antenna jack and check that noise can be heard from the speakers.

OK:

Noise occurs.

NG

REPLACE RADIO RECEIVER ASSEMBLY

OK

(a) Disconnect the RA radio receiver assembly connector.

(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition RA-5 (ANT+) - Body ground Ignition switch ACC Radio switch on and FM or AM selected 11 to 14 V

*a Component without harness connected (Radio Receiver Assembly)

NG

REPLACE RADIO RECEIVER ASSEMBLY

OK

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

Click here

OK:

Radio broadcasts can be received normally.

OK

END

NG

(a) Replace the No. 2 antenna cord sub-assembly and check if radio broadcasts can be received normally.

Click here

OK:

Radio broadcasts can be received normally.

OK

END

NG

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

Click here

OK:

Radio broadcasts can be received normally.

OK

END

NG

(a) Replace the roof antenna assembly and check if radio broadcasts can be received normally.

Click here

OK:

Radio broadcasts can be received normally.

OK

END

NG

REPLACE RADIO RECEIVER ASSEMBLY