LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2004 >> SC 430 >> Repair and Diagnosis >> Electrical >> Horns >> Communication System >> Telephone Transceiver ASSY (2003 My) >> Replacement
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Telephone Transceiver ASSY (2003 My): Replacement

HINT:

  1. REMOVE SPARE WHEEL COVER ASSY (See  Figure ) 
  2. REMOVE LUGGAGE COMPARTMENT FLOOR MAT (See  Figure ) 
  3. REMOVE LUGGAGE COMPARTMENT TRIM COVER RH (See  Figure ) 
  4. REMOVE LUGGAGE COMPARTMENT TRIM COVER LH (See  Figure ) 
  5. REMOVE TOOL BOX COVER (See  Figure ) 
  6. REMOVE LUGGAGE HOLD BELT STRIKER ASSY (See  Figure ) 
  7. REMOVE TONNEAU COVER ASSY (See  Figure ) 
  8. REMOVE LUGGAGE COMPARTMENT TRIM COVER INNER LOWER (See  Figure ) 
  9. REMOVE REAR FLOOR FINISH SIDE PLATE RH (See  Figure ) 
  10. REMOVE REAR FLOOR FINISH SIDE PLATE LH (See  Figure ) 
  11. REMOVE LUGGAGE COMPARTMENT TRIM COVER FRONT (See  Figure ) 
  12. REMOVE LUGGAGE COMPARTMENT TRAY BRACKET FRONT 
    1. Remove the 2 nuts and 3 bolts.
    2. Remove the 2 luggage compartment tray bracket fronts.
    Fig 1: Removing 2 Nuts And 3 Bolts
    G03479697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE TRANSCEIVER & BATTERY ASSY 
    1. Disconnect the connectors and clamps.
    2. Remove the 3 nuts and transceiver & battery assembly.
  14. REMOVE PORTABLEPHONE-L BATTERY 
    1. Remove the nut and mobile bracket No.2.
    2. Disconnect the connector, and then remove the portable-phone-L battery.
  15. REMOVE TELEPHONE TRANSCEIVER ASSY 
    1. Disconnect the connectors and clamps.
    2. Remove the 3 screws and telephone transceiver assembly from the mobile bracket No.1.
    NOTE: The telephone transceiver assembly should be replaced together with the mayday ECU assembly.
    Fig 2: Removing 3 Nuts And Transceiver & Battery Assembly
    G03479698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. INSTALL TRANSCEIVER & BATTERY ASSY 
    1. Disconnect the 2 dummy connectors from the wire harness connectors of a new telephone transceiver assembly, and connect those wire harness connectors each other.
    2. Install the transceiver & battery assembly with the 3 nuts.

      Torque: 7.0 N.m (71 kgf.cm, 62 in..lbf) 

      Fig 3: Connecting Wire Harness Connectors
      G03479699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: Make sure that the last 4 digits of serial No. of the mayday ECU assembly correspond to those of the telephone transceiver assembly.
    3. Connect the connectors and clamps.
    Fig 4: Identifying Mayday ECU Assembly And Telephone Transceiver Assembly
    G03479700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002