Inspection Procedure

1. Disconnect the R3 or R4 receiver connector.
   Fig 1: Identifying R3 Or R4 Receiver Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the receiver.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   R3-6 (ATX+) - R3-16 (ATX-)*1	60 to 80 Ω
   R2-10 (ATX+) - R2-9 (ATX-)*2	60 to 80 Ω
   HINT: *1: for Taiwan, South Korea *2: for Except Taiwan, South Korea

NG: REPLACE RADIO RECEIVER ASSEMBLY 

OK: Go to next step 

1. Disconnect the M5 panel connector.
2. Disconnect the R2 or R3 receiver connector.
   Fig 2: Identifying R2 Or R3 Receiver Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   M5-6 (TX+) - R2-10 (ATX+)*1	Below 1 Ω
   M5-16 (TX-) - R2-9 (ATX-)*1	Below 1 Ω
   M5-6 (TX+) - R3-6 (ATX+)*2	Below 1 Ω
   M5-16 (TX-) - R3-16 (ATX-)*2	Below 1 Ω
   M5-6 (TX+) - Body ground	10 kΩ or higher
   M5-16 (TX-) - Body ground	10 kΩ or higher
   HINT: *1: for Taiwan, South Korea *1: for Except Taiwan, South Korea

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. Remove the instrument cluster finish panel sub-assembly center.
   Fig 3: Identifying Instrument Cluster Finish Panel Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the panel.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   M5-6 (TX+) - A-4	Below 1 Ω
   M5-16 (TX-) - A-5	Below 1 Ω
   M5-6 (TX+) - Body ground	10 kΩ or higher
   M5-16 (TX-) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OR DIAGNOSTIC TROUBLE CODE CHART