CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM PRECAUTION


  1. IGNITION SWITCH EXPRESSIONS


    1. The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.

      Expression Ignition Switch (Position) Engine Switch (Condition)
      Ignition switch off LOCK Off
      Ignition switch ACC ACC On (ACC)
      Ignition switch ON ON On (IG)
      Engine start START Start

    Note


    • Perform Reset Memory (AT initialization) when replacing the continuously variable transaxle (CVT) assembly or ECM Click here.

    • Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:

      Replaced Part

      • Continuously variable transaxle assembly

      • ECM

      • Oil pressure sensor

      • Yaw rate and acceleration sensor

    • If the ECM is replaced, register the ECM communication ID for Immobiliser System (Refer to the Service Bulletin for Registration).

    CAUTION:

    When using compressed air, always aim away from yourself to prevent CVT fluid or kerosene from spraying on your face.

    Note


    • Clean any sand, dirt, or other matter off of the transaxle before removal and disassembly, in order to prevent contamination of the inside components.

    • Do not tilt the oil-pan side of the transaxle up until the oil pan is removed, to prevent foreign matter from contaminating the inside of the valve body.

    • When disassembling light alloy parts such as the case, do not pry them with a screwdriver or similar tool. Instead, tap the parts with a plastic hammer to separate them.

    • Do not wear cloth gloves or use cloth to handle parts during removal, disassembly, or installation of the transaxle. Instead, work with bare hands or wear synthetic gloves, to prevent cloth fiber from entering the transaxle.

    • Disassembled parts should be arranged in order and covered with a piece of cloth to prevent dust contamination.

    • Before reassembly, all parts should be cleaned, dried, and coated with Toyota Genuine CVT Fluid TC. However, do not use alkaline cleaners to clean aluminum and rubber components. Also, rubber components such as O-rings, gaskets, and oil seals should never be cleaned with solvents or gasoline under any circumstances.

    • Apply Toyota Genuine CVT Fluid TC to all sliding surfaces and rotating parts.

    • Before installing O-rings and oil seal rings, coat them with Toyota Genuine CVT Fluid TC and be sure to not damage them.

    • Do not clamp components in a vise without the use of protective aluminum plates.

    • Be careful to not damage the matching surfaces of components, because damage to these surfaces can cause oil leaks.

    • Before applying sealant, remove all of the old sealant and thoroughly clean the surfaces with non-residue solvent.

    • Use of Toyota Genuine CVT fluid TC is recommended.