Lexus GS450h Dismantling Manual
  1. Manuals
  2. Brands
  3. Lexus Manuals
  4. Automobile
  5. GS 450h
  6. Dismantling manual

Lexus GS450h Dismantling Manual

Gwl10 series gasoline-electric hybrid synergy drive
Hide thumbs Also See for GS450h:
Table of Contents

Advertisement

Quick Links

See also: Owner's Manual , User Manual
Gasoline-Electric
Hybrid Synergy Drive
GWL10 Series

Advertisement

Table of Contents
loading

Related Manuals for Lexus GS450h

Summary of Contents for Lexus GS450h

  • Page 1 Gasoline-Electric Hybrid Synergy Drive GWL10 Series...
  • Page 2 Foreword This guide was developed to educate and assist dismantlers in the safe handling of Lexus GS450h gasoline-electric hybrid vehicles. GS450h dismantling procedures are similar to other non-hybrid Lexus vehicles with the exception of the high voltage electrical system. It is important to recognize and understand the high voltage electrical system features and specifications of the Lexus GS450h, as they may not be familiar to dismantlers.

  • Page 3: Table Of Contents

    Table of Contents About the GS450h hybrid .......................... 1 GS450h Identification ..........................2 GS450h Identification (Continued) ......................3 GS450h Identification (Continued) ......................4 GS450h Identification (Continued) ......................5 Hybrid Component Locations & Descriptions ..................6 Hybrid Component Locations & Descriptions (Continued) ..............7 Specifications ..............................

  • Page 5: About The Gs450H Hybrid

    About the GS450h hybrid The GS450h joins the LS600h L, RX450h, HS250h and CT200h as a hybrid model for Lexus. Lexus Hybrid Drive means that the vehicle contains a gasoline engine and an electric motor for power. The two hybrid power sources are stored on board the vehicle: 1.

  • Page 6: Gs450H Identification

    GS450h Identification In appearance, the 2013 model year GS450h is a nearly identical to the conventional, non-hybrid Lexus GS350. The GS450h is a 4-door sedan. Exterior, interior, and engine compartment illustrations are provided to assist in identification. The alphanumeric 17 character Vehicle Identification Number (VIN) is provided in the front windshield cowl, engine compartment, and on the left side B pillar.

  • Page 7: Gs450H Identification (Continued)

    Gasoline fuel filler door located on left side rear quarter panel. Lexus logo on the radiator grille. Exterior Left Side View Exterior Front and Rear View Exterior Rear and Left Side View...

  • Page 8: Gs450H Identification (Continued)

    GS450h Identification (Continued) Interior The instrument cluster (hybrid system indicator, READY indicator and warning lights) located in the dash behind the steering wheel, is different than the one on the conventional, non-hybrid GS350. A switchable gauge in the instrument cluster showing either a hybrid system indicator or a tachometer depending on driving mode.

  • Page 9: Gs450H Identification (Continued)

    GS450h Identification (Continued) Engine Compartment 3.5-liter aluminum alloy gasoline engine. Logo on the plastic engine cover. Orange colored high voltage power cables. Engine Compartment View Power Cables...

  • Page 10: Hybrid Component Locations & Descriptions

    Hybrid Component Locations & Descriptions Component Location Description 12 Volt Auxiliary Left Side of A lead-acid battery that supplies power to the low voltage Battery Trunk devices. Hybrid Vehicle Trunk Area, 288 Volt Nickel Metal Hydride (NiMH) battery pack (HV) Battery Pack Mounted behind consisting of 40 low voltage (7.2 Volt) modules connected Rear Seat...

  • Page 11: Hybrid Component Locations & Descriptions (Continued)

    Hybrid Component Locations & Descriptions (Continued) Specifications Gasoline Engine: 289 ps (213 kW), 3.5-liter Aluminum Alloy Engine Electric Motors 200 ps (147 kW), Permanent Magnet Motor Transmission: Automatic Only HV Battery: 288 Volt Sealed NiMH Battery Curb Weight: 4,112-4,211 lbs/1,865-1,910 kg Fuel Tank: 17.5 gals/66.3 liters Frame Material: Steel Unibody Body Material: Steel Panels except for Aluminum Engine Hood...

  • Page 12: Hybrid Component Locations & Descriptions (Continued)

    Vehicle Operation • With the GS450h, the gasoline engine may stop and start at any time while the READY indicator is on. • Never assume that the vehicle is shut off just because the engine is off. Always look for the READY indicator status.

  • Page 13: Hybrid Vehicle (Hv) Battery Pack And Auxiliary Battery

    Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery The GS450h features a high voltage Hybrid Vehicle (HV) battery pack that contains sealed Nickel Metal Hydride (NiMH) battery modules. HV Battery Pack • The HV battery pack is enclosed in a metal case and is rigidly mounted to the trunk area behind the rear seat.

  • Page 14: Hybrid Vehicle (Hv) Battery Pack And Auxiliary Battery (Continued)

    Auxiliary Battery • The GS450h contains a sealed lead-acid 12 Volt battery. This 12 Volt auxiliary battery powers the vehicle electrical system similar to a conventional vehicle. As with other conventional vehicles, the negative terminal of the auxiliary battery is grounded to the metal chassis of the vehicle.

  • Page 15: High Voltage Safety

    High Voltage Safety The HV battery pack powers the high voltage electrical system with DC electricity. Positive and negative orange colored high voltage power cables are routed from the battery pack, under the vehicle floor pan, routed along the propeller shaft and transmission tunnel to the inverter/converter.

  • Page 16: High Voltage Safety (Continued)

    High Voltage Safety (Continued) Service Plug Grip • The high voltage circuit is cut by removing the service plug grip (see page 15). High Voltage Safety System – Vehicle Shut Off (READY-OFF) High Voltage Safety System – Vehicle On and Operational (READY-ON)

  • Page 17: Precaution To Be Observed When Dismantling The Vehicle

    Precaution to be observed when dismantling the vehicle WARNING: The high voltage system may remain powered for up to 10 minutes after the vehicle is shut off or disabled. To prevent serious injury or death from severe burns or electric shock, avoid touching, cutting, or opening any orange high voltage power cable or high voltage component.

  • Page 18: Spills

    Spills The GS450h contains the same common automotive fluids used in other non-hybrid Lexus vehicles, with the exception of the NiMH electrolyte used in the HV battery pack. The NiMH battery electrolyte is a caustic alkaline (pH 13.5) that is damaging to human tissues. The electrolyte, however, is absorbed in the cell plates and will not normally spill or leak out even if a metal battery module is cracked.

  • Page 19: Dismantling The Vehicle

    Dismantling the vehicle The following 2 pages contain general instructions for use when working on a GS450h. Read these instructions before proceeding to the HV battery removal instructions on page 18. WARNING: The high voltage system may remain powered for up to 10 minutes after the vehicle is shut off or disabled.
  • Page 20 Instead, wash the eye(s) with a dilute boric acid solution or a large amount of water and seek medical care. 10. With the exception of the HV battery, remove parts by following procedures which are similar to conventional Lexus vehicles. For the removal of the HV battery, refer to the following pages.

  • Page 22: Removal Of Hv Battery

    Removal of HV battery WARNING: Be sure to wear insulated gloves when handling high-voltage parts. Even if the vehicle is shut off and the relays are off, be sure to remove the service plug grip before performing any further work. Power remains in the high voltage electrical system for 10 minutes even after the HV battery pack is shut off because the circuit has a condenser that stores power.

  • Page 23: Remove Service Plug Grip/Inverter Cover

    4. REMOVE SERVICE PLUG GRIP (1) Remove the No. 1 seat armrest cap. (2) Remove the 4 nuts and lower hybrid vehicle battery cover panel. Caution: Wear insulated gloves for the following 3 steps. (3) Slide the handle of the service plug grip to the right. (4) Raise the service plug grip.

  • Page 24: Remove Connerctor Cover Assembly

    6. REMOVE CONNERCTOR COVER ASSEMBLY Remove the 2 bolts and connector cover assembly. Caution: Wear insulated gloves. Notice: Do not touch the high voltage connectors or terminals for 10 minutes after the service plug grip is removed. 7. CHECK TERMINAL VOLTAGE Check the voltage at the terminals in inspection point in the power control unit.

  • Page 25: Remove Rear Seat Assembly

    8. REMOVE REAR SEAT ASSEMBLY (1) Remove the rear seat cushion assembly. (2) Cut the seat belts CTR, LH, and RH. (3) Remove the rear seatback assembly. ×4 This illustration is for a model with seat heater Caution: Do not cut wiring or wire harnesses when removing vehicle components. Always disconnect components at the connector.

  • Page 26: Remove No. 1 Room Partition Pad

    9. REMOVE NO. 1 ROOM PARTITION PAD (1) Remove the rear door scuff plate LH and RH. (2) Remove the rear seat side garnish LH and RH. (3) Remove the inner roof side garnish LH and RH. (4) Remove the center stop light cover. (without rear sunshade system) (5) Remove the package tray trim panel assembly.
  • Page 27 10. REMOVE FRONT LUGGAGE COMPARTMENT TRIM COVER (1) Remove the luggage compartment trim cover RH. (2) Remove the side trim box. (3) Remove the luggage compartment side tray. (with spare tire model) (4) Remove the rope hook assembly. (5) Remove the rear luggage compartment tray bracket LH and RH. (6) Remove the No.
  • Page 28 11. REMOVE LUGGAGE COMPARTMENT TRIM INNER COVER (1) Remove the rear floor finish plate. (2) Remove the front luggage compartment trim cover. (3) Remove the rope hook. (4) Remove the inner luggage compartment trim cover LH and RH. ×2 ×3 ×2 without power trunk lid system with power trunk lid system...
  • Page 29 12. REMOVE NO. 4 HYBRID VEHICLE BATTERY SHIELD SUB-ASSEMBLY Caution: Wear insulated gloves. (1) Using the service plug grip, release the battery cover lock striker. (2) Remove the 4 nuts and No. 4 hybrid vehicle battery shield sub-assembly. 13. DISCONNECT NO. 4 FLOOR WIRE Caution: Wear insulated gloves.

  • Page 30: Remove Hybrid Vehicle Battery

    15. REMOVE NO. 1 HYBRID BATTERY INTAKE DUCT RH Remove the 2 clips and No. 1 hybrid battery intake duct RH. 16. REMOVE BRAKE CONTROL POWER SUPPLY ASSEMBLY Remove the 2 bolts and brake control power supply assembly. 17. REMOVE NO. 1 HYBRID BATTERY CARRIER BRACKET Caution: Wear insulated gloves.
  • Page 31 (2) Disconnect the 2 connectors. (3) Remove the 4 bolts. (4) Remove the 2 nuts. (5) Install the luggage compartment floor mat upside down.
  • Page 32 19. The HV battery pack is recyclable. Contact your Lexus distributor (if included on the HV battery caution label) or contact the nearest Lexus dearer (see the next 2 pages for samples of the HV battery caution label).

  • Page 33: Hv Battery Caution Label

    HV Battery Caution Label 1. For U.S.A. 2. For Canada 3. For Europe...
  • Page 34 4. Russia...

Table of Contents