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Home >> Toyota >> 2014 >> Avalon XLE >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Safety Connect System (Diagnostic Codes & Symptom Tests) (Except Hybrid) >> Safety Connect System >> DTC B1573: Short in Telephone Antenna Circuit; DTC B15CB: Telematics Transceiver Antenna Disconnected [10/2013 - ] >> Procedure

DTC B1573: Short in Telephone Antenna Circuit; DTC B15CB: Telematics Transceiver Antenna Disconnected [10/2013 - ]: Procedure

  1. CHECK DTC 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and wait for 10 seconds.
    4. Turn the Techstream on.
    5. Perform "Health Check" and check for current DTCs. Refer to HEALTH CHECK [10/2013 - ] .

      Result

      Result Proceed to
      DTC B1573 or B15CB is output. A
      DTC B1573 or B15CB is not output. B

    B → See step   7 

    A: Go to next step 

  2. INSPECT TELEPHONE AND GPS ANTENNA ASSEMBLY 
    1. Disconnect the telephone and GPS antenna assembly connector from the telephone and GPS antenna cord (No. 2 floor wire).
      GTY365935Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 - 3a Always 4 to 11 kΩ
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Telephone and GPS Antenna Assembly)

    NG → See step   8 

    OK: Go to next step 

  3. INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 2 FLOOR WIRE) 
    1. Disconnect the telephone and GPS antenna cord (No. 2 floor wire) connector from the DCM (Telematics Transceiver).
      GTY363126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K20-3 - K22-1 Always Below 1 Ω
      K20-3a - K22-1a Always Below 1 Ω
      K20-3 - Body ground Always 10 kΩ or higher
      K20-3a - Body ground Always 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Telephone and GPS antenna cord (No. 2 Floor Wire)

    NG → REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 2 FLOOR WIRE) 

    OK: Go to next step 

  4. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY 
    1. Replace the telephone and GPS antenna assembly with a known good one and check if the same problem occurs again. Refer to REMOVAL [10/2013 - ] .

      OK

      The system returns to normal.

    NG → See step   5 

    OK → END 

  5. REPLACE DCM (TELEMATICS TRANSCEIVER) 
    1. Replace the DCM (Telematics Transceiver). Refer to REMOVAL [10/2013 - ] .
      NOTE:
      • The engine switch must be off.
      • Do not replace the DCM (Telematics Transceiver) with one from another vehicle.

    NEXT: Go to next step 

  6. PERFORM PRL UPDATE 
    1. Perform "PRL UPDATE". Refer to PRL UPDATE [10/2013 - ] .

    NEXT → See step   9 

  7. CHECK FOR INTERMITTENT PROBLEMS. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2013 - ] 
  8. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY. Refer to  REMOVAL [10/2013 - ] 
  9. PERFORM DCM ACTIVATION. Refer to  DCM ACTIVATION [10/2013 - ]