Precaution [08/2016 - 08/2019]

When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected:

• Before replacing the ECM, refer to Registration.

  Refer to REGISTRATION [09/2015 - 08/2019]

• If any parts are replaced, perform the following procedures as necessary referring to the table below.

  Replaced Part		Reset Memory *1	Set Transaxle Compensation Code	Learning by Driving (Road Test)
  Automatic transaxle assembly		- *2	Input *3	Perform
  Shift solenoid valve SL1 and SL2		-	-	Perform
  Transmission valve body assembly Shift solenoid valve SL3, SL4 and SL5		-	Initialize	Perform
  ECM (If possible, read the transaxle compensation code from the previous ECM)	Possible	-	Input (into the new ECM) *4	Perform
  	Impossible	-	Initialize *5	Perform
  Engine assembly		Perform	-	Perform

• The automatic transaxle is composed of precision-made parts. Careful inspection before reassembly is necessary because even a small nick could cause fluid leakage or affect performance.
• The procedures are organized so that you work on only one component group at a time. This will help avoid confusion with similar-looking parts of different sub-assemblies being on your workbench at the same time.
• The component groups are inspected and repaired from the converter housing side.
• Whenever possible, complete the inspection, repair and reassembly before proceeding to the next component group. If a defect is found in a certain component group during reassembly, inspect and repair this group immediately. If a component group cannot be assembled because parts are being ordered, be sure to keep all parts of the group in a separate container while proceeding with disassembly, inspection, repair and reassembly of other component groups.
• Use of Toyota Genuine ATF WS is recommended.
• All disassembled parts should be cleaned, and compressed air should be blown through any fluid passages and holes.
• Dry all parts with compressed air. Never use a piece of cloth.
• The recommended ATF or kerosene should be used for cleaning.
• After cleaning, the parts should be arranged in the order they were removed for efficient inspection, repair and reassembly.
• New brake discs and clutch discs must be soaked in ATF for at least 15 minutes before reassembly.
• All oil seal rings, clutch discs, clutch plates, rotating parts, and sliding surfaces should be coated with ATF prior to reassembly.
• All old gaskets and rubber O-rings must be replaced.
• Do not apply adhesive cement to gaskets or similar parts.
• Make sure that the ends of snap rings are not aligned with any cutouts. Make sure that snap rings are correctly installed into the grooves.
• If a worn bushing is to be replaced, the sub-assembly containing the bushing must also be replaced.
• Check the thrust bearings and races for wear or damage. Replace them if necessary.
• Use petroleum jelly to keep parts in place.
• When working with seal packing (FIPG), observe the following:
  • Using a razor blade and a gasket scraper, remove all of the old seal packing (FIPG) from the gasket surface.
  • Thoroughly clean all components to remove any seal packing (FIPG).
  • Clean both sealing surfaces with a non-residue solvent.
  • Parts must be reassembled within 10 minutes of application. Otherwise, the seal packing (FIPG) must be removed and reapplied.