Toyota Corolla Cross: Precaution
PRECAUTION
PRECAUTION
NOTICE:
- If Continuously Variable Transaxle (CVT) parts are replaced, perform the
following as necessary: Parts Replacement Compensation Table
*1: When replacing with a new TCM
*2: When replacing with a TCM which was installed to another vehicle
|
Replaced Part
|
Transaxle Compensation Code
|
Reset Memory (Learned Values)
|
CVT Oil Pressure Calibration
|
Road Test
|
Continuously variable transaxle assembly
|
Input
|
Reset
|
Initialize
|
Necessary
|
Transmission valve body assembly
|
Initialize
|
Reset
|
Initialize
|
Necessary
|
Oil pressure sensor
|
-
|
Reset
|
Initialize
|
Necessary
|
Airbag ECU assembly (Yaw rate and acceleration sensor)
|
-
|
Reset
|
Initialize
|
Necessary
|
TCM
(If possible, read the transaxle compensation code from the previous
TCM)
|
Possible to read transaxle compensation code
|
Input (Into new TCM)
|
-*1
Reset*2
|
Initialize
|
Necessary
|
Impossible to read transaxle compensation code
|
Initialize
|
-*1
Reset*2
|
Initialize
|
Necessary
|
ECM
|
-
|
Reset
|
Initialize
|
Necessary
|
- For transaxle compensation code registration
Click here
- For Reset Memory (learned values), transmission compensation code initialization,
deceleration sensor zero point calibration, CVT oil pressure calibration
and road test
Click here
- If either of the following conditions is met, perform ATF Thermal Degradation
Estimate Reset:
Click here
HANDLING PRECAUTIONS
CAUTION:
- Do not perform a stall test if there are any people or objects near the
vehicle.
- The vehicle could begin moving suddenly, resulting in a serious accident.
- Do not perform a stall test if any wheel chock is out of position.
- The vehicle could begin moving suddenly, resulting in a serious accident.
- Do not perform the stall test on a slippery or low-friction surface that
could allow the tires to spin.
- The vehicle could begin moving suddenly, resulting in a serious accident.
- Do not use compressed air when not wearing safety glasses.
- CVT fluid could enter your eyes, possibly resulting in blindness.
NOTICE:
- Before removing components from the transaxle, clean off any sand, dirt
or other foreign matter. Make sure that foreign matter does not enter the transaxle
when parts are removed or installed.
- When disassembling alloy parts, such as the transaxle case, do not pry on
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 a cloth to handle parts during removal,
disassembly, or installation of the transaxle. Instead, wear synthetic gloves
to prevent cloth fibers from entering the transaxle.
- Use of Toyota Genuine CVT Fluid FE is recommended.
- Do not subject parts such as sensors to any impact. Replace parts with new
ones if they are dropped or subjected to a severe impact.
- The continuously variable transaxle assembly 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 torque converter
housing side.
- Whenever possible, complete 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.
- 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 CVT fluid 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 CVT fluid for at least
15 minutes before reassembly.
- All oil seal rings, clutch discs, clutch plates, rotating parts, and sliding
surfaces should be coated with CVT fluid prior to reassembly.
- All old gaskets and rubber O-rings must be replaced.
- Do not apply adhesive cement to gaskets or similar parts.
- Check the thrust bearings and races for wear or damage. Replace them if
necessary.
- 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.
- When the TCM is replaced, update the ECU security key.
Click here
READ NEXT:
DEFINITION OF TERMS
Term
Definition
Monitor description
Description of what the TCM monitors and how it detects malfunctions
(monitoring purpose
PARTS LOCATION
ILLUSTRATION
*1
TCM
*2
ECM
*3
BRAKE ACTUATOR ASSEMBLY
- SKID CONTROL ECU
*4
NO. 1 EN
SEE MORE:
OPERATION CHECK STOP AND START SYSTEM OPERATION CHECK
HINT:
If the cable is disconnected from the auxiliary battery terminal, stop and start control is prohibited until refresh charge is completed.
In this case, let the vehicle idle to complete the refresh charge. The refresh charge is compl
DESCRIPTION The cause of this malfunction may be the motor resolver.
Check the motor resolver internal resistance and the connection condition from the inverter to the resolver. Related Parts Check
Area Inspection
Wire harness and connector between the inverter and motor resolve