Radio Broadcast cannot be Received or Poor Reception: Procedure

1. 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 → See step   8 

A: Go to next step 

1. Check optional components (sun-shade film, telephone antenna, etc.).
   1. 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 installed	A
      Optional components are not installed	B

      NOTE:

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

B → See step   3 

A → REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE) 

1. Preparation for check
   Fig 1: Locating Radio Receiver Antenna Plug

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Remove the antenna plug from the radio receiver assembly.
2. Check for noise
   1. Turn the ignition switch to ACC with the radio 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 receiver assembly antenna jack and check that noise can be heard from the speaker.

      OK

      Noise occurs.

NG → See step   8 

OK: Go to next step 

1. Disconnect the radio receiver assembly connector.
2. Disconnect the satellite radio antenna assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E1-8 (ANT) - E3-1 (B)	Always	Below 1 Ω
   E1-8 (ANT) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the radio receiver assembly connector.
   Fig 2: Inspecting Radio Receiver Assembly E3 Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   E3-1 (B) - Body ground	Ignition switch ACC Radio switch on	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Satellite Radio Antenna Assembly)

NG → See step   8 

OK: Go to next step 

1. Remove the antenna plug of the radio receiver assembly and antenna.
2. Measure the resistance between the satellite radio antenna assembly and radio receiver assembly to check for an open circuit in the antenna cord sub-assembly.

   Standard Resistance

   Below 1 Ω

3. Measure the resistance between the antenna cord and body ground to check for a short circuit in the antenna cord sub-assembly.

   Standard Resistance

   10 kΩ or higher

NG → See step   9 

OK: Go to next step 

1. Replace the satellite radio antenna assembly and check if radio broadcasts can be received normally. Refer to REMOVAL .

   OK

   Radio broadcasts can be received.

NG → See step   8 

OK → NORMAL OPERATION