Toyota Venza: Radio Broadcast cannot be Received or Poor Reception

Toyota Venza Service Manual / Navigation / Multi Info Display / Navigation System / Radio Broadcast cannot be Received or Poor Reception

PROCEDURE

1.	CHECK NAVIGATION RECEIVER ASSEMBLY

(a) Check the radio automatic station search function.

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

Result	Proceed to
Automatic station search function does not stop.	A
Automatic station search function stops on a station.	B

REPLACE NAVIGATION RECEIVER ASSEMBLY

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	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.

REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

3.	CHECK RADIO ANTENNA

(a) Preparation for check

(1) Remove the roof antenna pole sub-assembly (See page ).

(b) Check for noise

(1) Turn the ignition switch to ACC with the navigation 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 satellite radio antenna assembly threaded installation portion for the roof antenna pole sub-assembly and check that noise can be heard from the speakers (w/ SDARS System).

(4) Place a screwdriver, thin wire or other metal object on the No. 1 amplifier antenna assembly threaded installation portion for the roof antenna pole sub-assembly and check that noise can be heard from the speakers (w/o SDARS System).

Result	Proceed to
Noise does not occur.	A
Noise occurs.	B

REPLACE NAVIGATION RECEIVER ASSEMBLY

4.	CHECK NAVIGATION RECEIVER ASSEMBLY

(a) Preparation for check

(1) Remove the antenna connector from the navigation receiver assembly.

(b) Check for noise

(1) Turn the ignition switch to ACC with the navigation 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 navigation receiver assembly antenna jack and check that noise can be heard from the speakers.

OK:

Noise can be heard from the speakers.

REPLACE NAVIGATION RECEIVER ASSEMBLY

5.	INSPECT NAVIGATION RECEIVER ASSEMBLY

(a) Disconnect the RA navigation 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 AM or FM selected

8.0 V or higher

Text in Illustration

*a	Component without harness connected (Navigation Receiver Assembly)

REPLACE NAVIGATION RECEIVER ASSEMBLY

6.	REPLACE ANTENNA CORD SUB-ASSEMBLY

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

OK:

Radio broadcasts can be received normally.

END

7.	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:

Radio broadcasts can be received normally.

END

8.	REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY

(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 (See page ).

OK:

Radio broadcasts can be received normally.

END

9.	REPLACE ROOF ANTENNA POLE SUB-ASSEMBLY

(a) Replace that the roof antenna pole sub-assembly with a new or known good one and check if radio broadcasts can be received normally (See page ).

OK:

Radio broadcasts can be received normally.

(b) Proceed to the next step based on the inspection result.

Condition	Proceed to
NG	A
OK (w/o SDARS System)	B
OK (w/ SDARS System)	C

CHECK AND REPLACE ROOF ANTENNA POLE SUB-ASSEMBLY

GO TO STEP 11

10.	REPLACE NO. 1 AMPLIFIER ANTENNA ASSEMBLY

(a) Replace the No. 1 amplifier antenna assembly with a new or known good one and check if radio broadcasts can be received normally (See page ).

OK:

Radio broadcasts can be received normally.

END

REPLACE NAVIGATION RECEIVER ASSEMBLY

11.	REPLACE SATELLITE RADIO ANTENNA ASSEMBLY

(a) Replace the satellite radio antenna assembly with a new or known good one and check if radio broadcasts can be received normally (See page ).

OK:

Radio broadcasts can be received normally.

END

REPLACE NAVIGATION RECEIVER ASSEMBLY

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