FixVault
Home › Lexus › 2009 › LS 460L AWD › Repair and Diagnosis › Accessories & Equipment › Entertainment Systems › Cellular Communication › LEXUS Link System › DTC 3-2 Cellular Phone Antenna Error › Inspection Procedure

Inspection Procedure

  1. INSPECT TELEPHONE ANTENNA ASSEMBLY AND ANTENNA CORD SUB-ASSEMBLY 
    1. Disconnect the antenna connector from the ECU.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 (SIGNAL) - Body ground Always 4 to 11 kΩ
      Fig 1: Identifying Antenna Cord Sub-Assembly Connector Terminals
      G04945800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK:  Go to step  3

      NG: Go to Next Step 

  2. INSPECT ANTENNA CORD SUB-ASSEMBLY 
    1. Disconnect the antenna cord connector from the ECU.
    2. Disconnect the antenna cord connector from the telephone antenna.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 (SIGNAL) - 1 Always Below 1 Ω
      Either terminal 1 - Body ground Always 10 kΩ or higher
      Fig 2: Identifying Telephone Antenna And ECU Connector Terminals
      G04945801Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPLACE ANTENNA CORD SUB-ASSEMBLY THEN CLEAR HISTORIC DTC 

      OK: Go to Next Step 

  3. CHECK MAYDAY ECU (OPERATION) 
    1. Temporarily replace the mayday ECU and mayday battery with a new one.
    2. Check for DTC again (see DTC CHECK/CLEAR  ).

      OK: System operates normally (red LED off). 

      NG: Current DTC 3-2 exists. 

      NG: REPLACE TELEPHONE ANTENNA ASSEMBLY THEN CLEAR HISTORIC DTC 

      OK: END (MAYDAY ECU IS FAULTY; PERFORM REGISTRATION) 

About FixVault