Toyota RAV4 (XA40) 2013-2018 Service Manual: Parts location
System diagram
The configuration of the electronic control system in the u140f automatic transaxle is as shown in the following chart.
System description
- System description
- The electronic controlled automatic transaxle
(ect) is an automatic transaxle that electronically
controls shift timing using the engine control
module (ecm). The ecm detects electrical signals
that indicate engine and driving conditions, and
controls the shift point based on driver habits and
road conditions. As a result, fuel efficiency and
power transaxle performance are improved.
Shift shock is reduced by controlling the engine and transaxle simultaneously.
In addition, the ect has the following features:
- Diagnostic function.
- Fail-safe function when a malfunction occurs.
How to proceed with troubleshooting
Hint:
- The ecm of this system is connected to the can and multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the can and multiplex communication systems.
- *: Use the intelligent tester.
- Vehicle brought to workshop
- Customer problem analysis
- Inspect battery voltage
Standard voltage: 11 to 14 v
If the voltage is below 11 v, recharge or replace the battery before proceeding.
- Connect intelligent tester to dlc3*
- Check and clear dtcs and freeze frame data*
- Refer to the dtc check / clear (see page ax-29).
- Visual inspection
- Setting check mode diagnosis*
- Refer to the check mode procedure (see page ax-30).
- Problem symptom confirmation
- Refer to the road test (see page ax-12).
Result 
- Symptom simulation
- Refer to the electronic circuit inspection procedure (see page in-37).
- Dtc check*
- Refer to the dtc check / clear (see page ax-29).
Result 
- Basic inspection
- Refer to the automatic transmission fluid (see page ax-102).
- Refer to the park/neutral position switch (see page ax-108).
- Refer to the floor shift assembly (see page ax- 136).
- Mechanical system tests
- Refer to the mechanical system tests (see page ax-15).
- Hydraulic test
- Refer to the hydraulic test (see page ax-16).
- Manual shifting test
- Refer to the manual shifting test (see page ax- 17).
- Problem symptoms table chapter 1
- Refer to the problem symptoms table (see page ax-21).
- Problem symptoms table chapter 2
- Refer to the problem symptoms table (see page ax-21).
- Part inspection
- Dtc chart
- Refer to the diagnostic trouble code chart (see page ax-35).
- Circuit inspection
- Identification of problem
- Repair or replace
- Confirmation test
End
Precaution
Notice:
Perform the reset memory procedures (a/t
initialization) when replacing the automatic transaxle
assembly, engine assembly or ecm (see page ax-18).
Hint:
Reset memory cannot be completed b ...
Road test
Problem symptom confirmation
Based on the result of the customer problem
analysis, try to reproduce the symptoms. If the
problem is that the transaxle does not shift up, shift
down, or ...
Other materials:
Removal
Discharge fuel system pressure (see page
fu-9)
Drain coolant (see page co-6)
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation ...
Using an anchor bracket
(for top tether strap)
â– Anchor brackets (for top
tether strap)
Anchor brackets are provided
for each rear seat.
Use anchor brackets when fixing
the top tether strap.
Outboard rear seats
Anchor brackets
Top tether strap
Center rear seat
Anchor bracket
Top tether strap
â– Fixing the top tether strap
to the an ...
Disassembly
Hint:
When removing the ornament plate and emblem, heat the
radiator grille, ornament plate and emblem using a heat light.
Standard heating temperature
Notice:
Do not heat the emblem base and emblem excessively.
Remove hood to radiator grille seal
Remove the double-side tape.
Deta ...
