Toyota Corolla (E120) 2002–2008 Repair Manual / Automatic transmission / trans / Automatic transaxle assy (atm)
Toyota Corolla (E120): Automatic transaxle assy (atm)
Precaution
- The automatic transaxle is composed of highly precision–finished
parts, necessitating careful
inspection before reassembly because even a small nick could cause fluid
leakage or affect
the performance. The instructions here are organized so that you work on
only one component
group at a time. This will help avoid confusion from 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. As much as 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.
Recommended atf: t–iv
- All disassembled parts should be washed clean and any fluid passages and holes should be blown through with compressed air.
- Dry all parts with compressed air–never use shop rags.
- When using compressed air, always aim away from yourself to prevent accidentally spraying atf or kerosene on your face.
- The recommended automatic transaxle fluid or kerosene should be used for cleaning.
- After cleaning, the parts should be arranged in the correct order for efficient inspection, repairs, and reassembly.
- When disassembling a valve body, be sure to match each valve together with the corresponding spring.
- New discs for the brakes and clutches that are to be used for replacement 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 gaskets and rubber o–rings should be replaced.
- Do not apply adhesive cements to gaskets and similar parts.
- Make sure that the ends of a snap ring are not aligned with one of the cutouts and are installed in the groove correctly.
- If a worn bushing is to be replaced, the sub–assembly containing the bushing must also be replaced.
- Check thrust bearings and races for wear or damage. Replace if necessary.
- Use petroleum jelly to keep parts in place.
- When working with fipg material, you must observe the following.
Using a razor blade and a gasket scraper, remove all the old packing (fipg) material from the gasket surface.
Thoroughly clean all components to remove all the loose material.
Clean both sealing surfaces with a non–residue solvent.
Parts must be reassembled within 10 minutes of application. Otherwise, the packing (fipg) material must be removed and reapplied.
Other materials:
How to proceed with troubleshooting
Hint:
carry out troubleshooting in accordance with the procedures on the following
page. Here, only the basic
procedures are shown. Details are provided in the diagnostics section, showing
the most effective methods
for each circuit. Confirm the troubleshooting procedures first for the releva ...
Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure
sensor malfunctions.
P0451
The ecm senses pressure in the fuel tank using the vapor pressure sensor. The
ecm supplies the sensor
with a regulated 5 v reference–voltage and the sensor returns a signal voltage
betwee ...
Anti-glare function
► Manual anti-glare inside rear view mirror
Reflected light from the headlights of vehicles behind can be reduced by operating
the lever.
1 Normal position
2 Anti-glare position
► Auto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of ...