Inspection Procedure

1. Check the radio's automatic station search function.
   1. Move the vehicle to a location where radio wave reception is possible.
   2. Check the radio's automatic station search function by activating it.

      OK : 

      The radio's automatic station search function works properly. 

OK : REPLACE RADIO RECEIVER 

NG : GO TO NEXT STEP 

1. Disconnect the R3*1 or R6*2 receiver connector.
2. Measure the voltage of the receiver.

   Standard voltage 

   VOLTAGE AND RECEIVER CONDITION SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   R3--8 (ANT+) - Body ground*1	Power switch ON (IG), Radio switch ON	10 to 14 V
   R6--13 (ANT+) - Body ground*2

   HINT:

   • *1: for 6 speaker system
   • *2: for 9 speaker system

NG : REPLACE RADIO RECEIVER 

Fig 1: Checking Radio Receiver

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : GO TO NEXT STEP 

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

      OK : 

      Optional components are installed. 

      NOTE: Do not remove any optional components installed by the customer without consent.

OK : REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE) 

NG : GO TO NEXT STEP 

1. Preparation for check
   1. Remove the antenna plug from the radio receiver.
2. Check for noise
   1. Turn the power switch ON (ACC) with the radio receiver connector connected.
   2. Turn the radio on and change to AM mode.
   3. Place a screwdriver, thin wire, or other metal object on the radio receiver's antenna jack and check that noise can be heard from the speaker.

      OK : 

      Noise occurs. 

NG : REPLACE RADIO RECEIVER 

Fig 2: Identifying Antenna Plug From Radio Receiver

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : GO TO NEXT STEP 

1. Remove the antenna plug of the radio receiver and antenna.
2. Measure the resistance between the antenna cord's inner conductor and radio receiver to check for an open circuit in the antenna cord.

   Standard resistance: 

   Below 1 Ω 

3. Measure the resistance between the antenna cord's inner conductor and body ground to check for a short circuit in the antenna cord.

   Standard resistance: 

   10 kΩ or higher 

NG : REPLACE ANTENNA CORD 

OK : GO TO NEXT STEP 

1. Replace the amplifier antenna and check if radio broadcasts can be received normally.

   OK : 

   Radio broadcasts can be received. 

OK : END 

NG : REPLACE RADIO RECEIVER