Toyota Avalon hv dismantling Manual

This guide was developed to educate and assist dismantlers in the safe handling of Toyota AVALON Hybrid gasoline-electric hybrid vehicles. AVALON Hybrid dismantling procedures are similar to other non-hybrid Toyota 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 Toyota AVALON Hybrid, as they may not be familiar to dismantlers.

High voltage electricity powers the electric motor, generator, air conditioning (A/C) compressor and inverter/converter. All other automotive electrical devices such as the head lights, radio, and gauges are powered from a separate 12 Volt auxiliary battery. Numerous safeguards have been designed into the AVALON Hybrid to help ensure the high voltage, approximately 244.8 Volt, Nickel Metal Hydride (NiMH) Hybrid Vehicle (HV) battery pack is kept safe and secure in an accident. The NiMH HV battery pack contains sealed batteries that are similar to rechargeable batteries used in some battery operated power tools and other consumer products. The electrolyte is absorbed in the cell plates and will not normally leak out even if the battery is cracked. In the unlikely event the electrolyte does leak, it can be easily neutralized with a dilute boric acid solution or vinegar. High voltage cables, identifiable by orange insulation and connectors, are isolated from the metal chassis of the vehicle.

About the AVALON Hybrid
The AVALON Hybrid 4-door sedan joins the hybrid model lineup for Toyota. Hybrid Synergy 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. Gasoline stored in the fuel tank for the gasoline engine.
  2. Electricity stored in a high voltage Hybrid Vehicle (HV) battery pack for the electric motor.

The result of combining these two power sources is improved fuel economy and reduced emissions. The gasoline engine also powers an electric generator to recharge the battery pack; unlike a pure all electric vehicle, the AVALON Hybrid never needs to be recharged from an external electric power source. Depending on the driving conditions one or both sources are used to power the vehicle. The following illustration demonstrates how the AVALON Hybrid operates in various driving modes.

Toyota dismantling Manual

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