Toyota RAV4 (XA40) 2013-2018 Service Manual: Diagnosis system
- Bus check

- Select "bus check" from the "obd / mobd
menu" screen.
Hint:
The ecus and sensors that are properly connected
to the can communication system can be displayed
using the intelligent tester via can vim.

- Press "enter" on the intelligent tester via can
vim.

- The screen displayed the ecus and sensors that
are properly connected to the can communication
system.

Hint:
There is a communication stop in the system of any
properly connected ecus or sensors that are not
displayed (see page ca-10).
- Check installed systems (ecus and sensors) that use can communication
- System (ecus and sensors) that use can
communication vary depending on the vehicle's
optional settings. Check which systems (ecus and
sensors) are installed on the vehicle.

- Dtc table by ecu
Hint:
- Abs and traction actuator (skid
control ecu)
Hint:
Dtc communication uses the can communication
system.

- Power steering ecu
Hint:
Dtc communication uses the can communication
system.
- Ecm
Hint:
Dtc communication uses the can communication
system.
- Air conditioning amplifier
for vehicle with air conditioning (automatic air
conditioning system and manual air conditioning
system).
Hint:
Dtc communication uses the can communication
system.
- Combination meter ecu
Hint:
Dtc communication uses the can communication
system.
- 4Wd control ecu
For vehicle with 4wd only.
Hint:
Dtc communication uses the can communication
system.
- Main body ecu
Hint:
The center airbag sensor is connected to the can
communication system but can communication
dtcs are not output.
- Center airbag sensor
Hint:
The center airbag sensor is connected to the can
communication system but can communication
dtcs are not output.
- Dtc combination table

Hint:
- O: Outputs under condition shown in table above
- X: not output


Hint:
- O: Outputs under condition shown in table above
- X: not output
- Check the stop mode by using the results of the bus
check for the center airbag sensor (see page ca-
69) and main body ecu (see page ca-64).
- Perform troubleshooting according to the
combination of dtcs output.
- Abs and traction actuator (skid
control ecu) communication stop
mode: (see page ca-42)
- Power steering ecu communication
stop mode: (see page ca-49)
- Steering angle sensor
communication stop mode: (see page
ca-52)
- Yaw rate sensor communication stop
mode: (see page ca-55)
- Ecm communication stop mode: (see
page ca-58)
- Air conditioning amplifier
communication stop mode: (see page
ca-45)
- Combination meter ecu
communication system: (see page ca-67)
- 4Wd control ecu communication stop
mode: (see page ca-72)
Notice:
Turn the ignition switch off before measuring the
resistances of the main wire and branch wire.
After the ignition switch is turned off, check that the
key reminder warning system an ...
Fail-safe function
When communication fails in any of the main wires
(communication lines) due to a short circuit or other
causes, the fail-safe function, which is specified for
each sy ...
Other materials:
Components
(2006/01- )
...
Precaution
Precaution for vehicle with srs airbag and
seat belt pretensioner
Some operations in this section may affect the srs
airbags and seat belt pretensioner. Prior to
performing the corresponding operations, read the
srs airbag notice (see page rs-1).
Components
...
Short to gnd in can bus line
(2005/11-2006/01)
Description
There may be a short circuit between the can bus line and gnd when there is
resistance between
terminals 6 (canh) and 4 (cg) or terminals 14 (canl) and 4 (cg) of the dlc3.
Wiring diagram
Inspection procedure
Notice:
Turn the ignition switch off b ...