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Home >> Lexus >> 2013 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Electrical >> Starter >> Smart Access System (Keyless Start) (Diagnostics & Symptom Tests) >> Smart Access System With Push-Button Start >> Symptom Tests >> All Door Entry Lock/Unlock Functions And Wireless Functions Do Not Operate >> Procedure
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All Door Entry Lock/Unlock Functions And Wireless Functions Do Not Operate: Procedure

  1. CHECK POWER DOOR LOCK SYSTEM 
    1. When the master switch's door control switch is operated, check that the locked doors unlock. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Locked doors unlock.

    NG → See step   13 

    OK: Go to next step 

  2. CHECK DOOR CONTROL TRANSMITTER 
    1. When another registered door control transmitter is used, check that the wireless and entry function operates normally. Refer to OPERATION CHECK [09/2012 - ] .
      RESULT

      Result Proceed to
      Entry function operates and door control transmitter that did not operate is electrical key transmitter A
      Entry function operates and door control transmitter that did not operate is card key B
      Entry function does not operate C

    B → See step   4 

    C → See step   5 

    A: Go to next step 

  3. CHECK DOOR CONTROL TRANSMITTER (LED) 
    1. Check that the transmitter's LED illuminates 3 times when the switch is pressed 3 times.
      RESULT

      Result Proceed to
      Transmitter's LED does not illuminate 3 times when switch is pressed 3 times A
      Transmitter's LED illuminates 3 times when switch is pressed 3 times B
      The transmitter's LED does not illuminate the second or third time C

      HINT: 

      If the transmitter's LED does not illuminate the second or third time, replace the transmitter battery as it is depleted.

    B → REPLACE DOOR CONTROL TRANSMITTER 

    C → See step   14 

    A: Go to next step 

  4. INSPECT TRANSMITTER BATTERY (VOLTAGE) 
    1. Inspect the transmitter battery. Refer to INSPECTION [09/2012 - ] .

    NG → See step   14 

    OK → REPLACE DOOR CONTROL TRANSMITTER 

  5. CHECK WAVE ENVIRONMENT 
    1. Bring the door control transmitter near the door control receiver, and perform a wireless and smart operation check.

      HINT: 

      • When the door control transmitter is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      OK

      Wireless and entry functions operate normally.

    NG → See step   6 

    OK → AFFECTED BY WAVE INTERFERENCE 

  6. INSPECT FUSE (P MPX-B, SECURITY) 
    1. Remove the P MPX-B fuse from the passenger side junction block.
    2. Remove the SECURITY fuse from the main body ECU (driver side junction block).
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      P MPX-B fuse Always Below 1 Ω
      SECURITY fuse Always Below 1 Ω

    NG → REPLACE FUSE 

    OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - AUXILIARY BATTERY) 
    1. Disconnect the L15 ECU connector.
      GTY129511Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance and voltage according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      L15-17 (E) - Body ground Always Below 1 Ω

      Standard voltage

      Tester Connection Condition Specified Condition
      L15-20 (CUTB) - Body ground Always 11 to 14 V
      L15-1 (+B1) - Body ground Always 11 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  8. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER AND BODY GROUND) 
    GTY117070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the R37 receiver connector.
    2. Disconnect the L15 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      L15-29 (RC0) - R37-2 (+5) Always Below 1 Ω
      L15-38 (RDA) - R37-3 (DATA) Always Below 1 Ω
      L15-37 (ASEL) - R37-4 (ASEL) Always Below 1 Ω
      L15-39 (RSSI) - R37-5 (RSSI) Always Below 1 Ω
      L15-17(E) - Body ground Always Below 1 Ω
      R37-6 (GND) - Body ground Always Below 1 Ω
      L15-29 (RC0) or R37-2 (+5) - Body ground Always 10 kΩ or higher
      L15-38 (RDA) or R37-3 (DATA) - Body ground Always 10 kΩ or higher
      L15-37 (ASEL) or R37-4 (ASEL) - Body ground Always 10 kΩ or higher
      L15-39 (RSSI) or R37-5 (RSSI) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  9. CHECK BACK WINDOW GLASS (WINDOW GLASS ANTENNA WIRE) 
    1. Visually inspect the entire window glass antenna wire's lines for breaks.
      GTY134139Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using the tester, check that the window glass antenna wire's lines do not have continuity breaks.
      GTY149865Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      GTY129414Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Wrap a piece of tin foil around the tip of the negative (-) tester probe as shown in the illustration. Press the foil against the wire's lines with your finger without damaging the wire, and inspect the wire.
      • If foreign matter on the glass needs to be cleaned, use a soft, dry cloth to wipe the glass along the wire's lines without damaging the wire.
      • Do not use standard detergents or glass cleaners.
      1. Move the tin foil wrapped probe along the wire's lines, and check for line breaks.

        OK

        Based on visual inspection and tester inspection, wire line breaks are not present.

    NG → See step   16 

    OK: Go to next step 

  10. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - AMPLIFIER ANTENNA) 
    1. Disconnect the R37 receiver connector.
      GTY275772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the R69 antenna connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      R37-7 - R69-1 Always Below 1 Ω
      R37-7 or R69-1 - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  11. CHECK AMPLIFIER ANTENNA ASSEMBLY (OPERATION) 
    1. Temporarily replace the amplifier antenna with a new one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the wireless and entry functions operate normally.

      OK

      Wireless and entry functions operate normally

    NG → See step   12 

    OK → END (AMPLIFIER ANTENNA IS DEFECTIVE) 

  12. CHECK DOOR CONTROL RECEIVER (OPERATION) 
    1. Temporarily replace the door control receiver with a new one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the wireless and entry functions operate normally.

      OK

      Wireless and entry functions operate normally

    NG → See step   15 

    OK → END (DOOR CONTROL RECEIVER IS DEFECTIVE) 

  13. GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [09/2012 - ] 
  14. REPLACE TRANSMITTER BATTERY. Refer to  REMOVAL [09/2012 - ] 
  15. REPLACE CERTIFICATION ECU. Refer to  REGISTRATION [09/2012 - ] 
  16. REPAIR WINDOW GLASS ANTENNA WIRE. Refer to  REPAIR [09/2012 - ]