Home/Lexus/LS/Lexus LS IV (2006-2012)/Repair manual/Entertainment Systems/Cellular Communication: Removal & Installation
Contents Wiring diagrams Section: Entertainment Systems All sections

Cellular Communication: Removal & Installation Lexus LS IV

Entertainment Systems 18 illustrations ~1189 words

INSTALLATION

HINT

A bolt without a torque specification is shown in the standard bolt chart (see SPECIFIED TORQUE FOR STANDARD BOLTS ).

  1. INSTALL MOBILE PHONE BRACKET Install the 2 mobile phone brackets with the 4 bolts.
  2. INSTALL MAYDAY ECU Install the ECU with the nut. Connect the 4 connectors. Attach the 2 clamps.
  3. INSTALL LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  4. INSTALL LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY RH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  5. INSTALL REAR FLOOR FINISH PLATE (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  6. INSTALL LUGGAGE COMPARTMENT TRIM COVER FRONT (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  7. INSTALL NO. 2 LUGGAGE COMPARTMENT TRIM HOOK (w/o Rear Cooler) (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  8. INSTALL NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  9. INSTALL DECK TRIM SIDE BOARD LH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  10. INSTALL DECK TRIM SIDE BOARD RH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  11. INSTALL ROPE HOOK (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  12. INSTALL ROPE HOOK ASSEMBLY (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  13. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  14. INSTALL NO. 1 COOLER COVER (See «INSTALLATION»(ref-349723-S01438201792009120800000) )
  15. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  16. INSTALL COWL TOP VENTILATOR LOUVER RH (See «INSTALLATION»(ref-349732-S09051375432009120800000) )
  17. PERFORM INITIALIZATION Perform initialization (see «INITIALIZATION»(ref-349706-S07943075812009120800000) ). NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
  18. CHECK SRS WARNING LIGHT Check the SRS warning light (see «DIAGNOSIS SYSTEM»(ref-349738-S23481667942009120800000) ).
  19. PERFORM REGISTRATION Perform registration (see «REGISTRATION»(ref-349763-S32444564622009120800000) ). NOTE: When replacing the mayday battery or the mayday ECU assembly (together with mayday battery), perform registration.

Scheme 41

Scheme 41: COMPONENTS

Scheme 42

Scheme 42: REMOVAL
  1. REMOVE NO. 2 INSTRUMENT CLUSTER MOLDING (See «REMOVAL»(ref-349746-S04541701892009120800000) )
  2. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY (See «REMOVAL»(ref-349746-S04541701892009120800000) )
  3. REMOVE BUS BUFFER ECU Disconnect the connector. Remove the nut and ECU.

HINT

A bolt without a torque specification is shown in the standard bolt chart (see SPECIFIED TORQUE FOR STANDARD BOLTS ).

  1. INSTALL BUS BUFFER ECU Install the ECU with the nut. Connect the connector.
  2. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY (See «INSTALLATION»(ref-349746-S09854143102009120800000) )
  3. INSTALL NO. 2 INSTRUMENT CLUSTER MOLDING (See «INSTALLATION»(ref-349746-S09854143102009120800000) )

Scheme 43

Scheme 43

Scheme 44

Scheme 44: REMOVAL

Scheme 45

Scheme 45
  1. REMOVE COWL TOP VENTILATOR LOUVER RH (See «REMOVAL»(ref-349732-S04425564642009120800000) )
  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
  3. REMOVE NO. 1 COOLER COVER (w/ Rear Cooler) (See «REMOVAL»(ref-349723-S30601776122009120800000) )
  4. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  5. REMOVE ROPE HOOK ASSEMBLY (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  6. REMOVE ROPE HOOK (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  7. REMOVE DECK TRIM SIDE BOARD LH (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  8. REMOVE DECK TRIM SIDE BOARD RH (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  9. REMOVE LUGGAGE COMPARTMENT NO. 1 LIGHT ASSEMBLY (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  10. REMOVE LUGGAGE COMPARTMENT NO. 2 TRIM HOOK (w/o Rear Cooler) (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  11. REMOVE LUGGAGE COMPARTMENT TRIM COVER FRONT (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  12. REMOVE REAR FLOOR FINISH PLATE (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  13. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  14. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY RH (See «REMOVAL»(ref-349743-S29102114712009120800000) )
  15. REMOVE MAYDAY BATTERY Disconnect the connector. Remove the nut, upper bracket and battery.
  16. REMOVE LOWER BRACKET Remove the 2 nuts and bracket. Disconnect the clamp.
  1. INSTALL LOWER BRACKET Install the bracket with the 2 nuts. Connect the clamp.
  2. INSTALL MAYDAY BATTERY Install the battery with the upper bracket and nut. Connect the connector.
  3. INSTALL LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  4. INSTALL LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY RH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  5. INSTALL REAR FLOOR FINISH PLATE (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  6. INSTALL LUGGAGE COMPARTMENT TRIM COVER FRONT (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  7. INSTALL LUGGAGE COMPARTMENT NO. 2 TRIM HOOK (w/o Rear Cooler) (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  8. INSTALL LUGGAGE COMPARTMENT NO. 1 LIGHT ASSEMBLY (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  9. INSTALL DECK TRIM SIDE BOARD LH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  10. INSTALL DECK TRIM SIDE BOARD RH (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  11. INSTALL ROPE HOOK (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  12. INSTALL ROPE HOOK ASSEMBLY (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  13. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY (See «INSTALLATION»(ref-349743-S30157791022009120800000) )
  14. INSTALL NO. 1 COOLER COVER (w/ Rear Cooler) (See «INSTALLATION»(ref-349723-S01438201792009120800000) )
  15. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  16. INSTALL COWL TOP VENTILATOR LOUVER RH (See «INSTALLATION»(ref-349732-S09051375432009120800000) )
  17. PERFORM INITIALIZATION Perform initialization (see «INITIALIZATION»(ref-349706-S07943075812009120800000) ). NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
  18. CHECK SRS WARNING LIGHT Check the SRS warning light (see «DIAGNOSIS SYSTEM»(ref-349738-S23481667942009120800000) ).
  19. PERFORM REGISTRATION Perform registration (see «REGISTRATION»(ref-349763-S32444564622009120800000) ). NOTE: When replacing the mayday battery or the mayday ECU assembly (together with mayday battery), perform registration.

Scheme 46

Scheme 46: COMPONENTS

Scheme 47

Scheme 47: REMOVAL

Scheme 48

Scheme 48

Scheme 49

Scheme 49

Scheme 50

Scheme 50

Scheme 51

Scheme 51
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
  2. REMOVE ROOF HEADLINING ASSEMBLY for Standard Body: Remove the roof headlining (see «REMOVAL»(ref-349734-S03706653952009120800000) ). for Long Body: Remove the roof headlining (see «REMOVAL»(ref-349734-S29426050782009120800000) ).
  3. REMOVE TELEPHONE ANTENNA ASSEMBLY Detach the 4 claws and remove the 2 antenna cord connectors. Detach the 2 claws and remove the protector. Disconnect the 2 connectors. Remove the antenna nut. Detach the 2 claws and remove the telephone antenna.

Scheme 52

Scheme 52

Scheme 53

Scheme 53
  1. INSTALL TELEPHONE ANTENNA ASSEMBLY Attach the 2 claws to install the telephone antenna. Install the antenna nut. Torque: 4.5 N*m (46 kgf*cm, 40 in.*lbf) Connect the 2 connectors. Attach the 2 claws to install the protector. Attach the 4 claws to install the 2 antenna cord connectors.
  2. INSTALL ROOF HEADLINING ASSEMBLY for Standard Body: Install the roof headlining (see «INSTALLATION»(ref-349734-S14494944522009120800000) ). for Long Body: Install the roof headlining (see «INSTALLATION»(ref-349734-S24814211142009120800000) ).
  3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  4. PERFORM INITIALIZATION Perform initialization (see «INITIALIZATION»(ref-349706-S07943075812009120800000) ). NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
  5. CHECK SRS WARNING LIGHT Check the SRS warning light (see «DIAGNOSIS SYSTEM»(ref-349738-S23481667942009120800000) ).

Scheme 54

Scheme 54: COMPONENTS

Scheme 55

Scheme 55: REMOVAL

Scheme 56

Scheme 56

Scheme 57

Scheme 57
  1. REMOVE MAP LIGHT ASSEMBLY for Standard Body: Remove the map light (see «REMOVAL»(ref-349734-S03706653952009120800000) ). for Long Body: Remove the map light (see «REMOVAL»(ref-349734-S29426050782009120800000) ).
  2. REMOVE GARAGE DOOR OPENER TRANSMITTER Remove the 2 screws. Disconnect the connector and remove the amplifier, as shown in the illustration.
  3. REMOVE MICROPHONE ASSEMBLY Remove the 9 screws, cover and plate. Disconnect the connector. Detach the 2 claws and remove the microphone.

Scheme 58

Scheme 58
  1. INSTALL MICROPHONE ASSEMBLY Attach the 2 claws to install the microphone. Connect the connector. Install the cover and plate with the 9 screws.
  2. INSTALL GARAGE DOOR OPENER TRANSMITTER Connect the connector and install the amplifier, as shown in the illustration. Install the 2 screws.
  3. INSTALL MAP LIGHT ASSEMBLY for Standard Body: Install the map light (see «INSTALLATION»(ref-349734-S14494944522009120800000) ). for Long Body: Install the map light (see «INSTALLATION»(ref-349734-S24814211142009120800000) ).