Toyota RAV4 (XA40) 2013-2018 Service Manual: Fail-safe chart
- 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 system, operates to prevent the system from malfunctioning.
- The table below shows the effects on each system when communication is impossible. For further details, refer to each system.
Hint:
: Control master ecu
: Related ecu or sensor
Hint:
: Control master ecu
: Related ecu or sensor
- Abs and traction actuator (skid control ecu) communication stop mode
- Air conditioning amplifier communication stop mode
- Power steering ecu communication stop mode
- Steering angle sensor communication stop mode
- Yaw rate sensor communication stop mode
- Ecm communication stop mode (2005/11-2006/01)
- Ecm communication stop mode (2006/01- )
- Main body ecu communication stop mode
- Combination meter ecu communication stop mode
- Center airbag sensor communication stop mode
- 4Wd control ecu communication stop mode
- Can bus line
- Open in can main wire
- Short in can bus lines
- Short to b+ in can bus line
- Short to gnd in can bus line
- Open in one side of can branch line
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 di ...
Abs and traction actuator (skid control ecu) communication stop mode
Description
Wiring diagram
Inspection procedure
Notice:
Turn the ignition switch off before measuring the resistances
of the main wire and the branch
wire.
After the ignition swi ...
Other materials:
If the electronic key does
not operate properly (vehicles
with smart key system)
If communication between
the electronic key and vehicle
is interrupted or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the engine
can be started by following
the procedur ...
Panoramic moon roof
Use the overhead switches
to operate the panoramic
moon roof and electronic
sunshade.
Operating the electronic
sunshade and panoramic
moon roof
â– Opening and closing the
electronic sunshade
Opens the electronic sunshade*
Slide and hold the switch
backward. The electronic sunshade
will fully ...
Front occupant classification sensor lh collision detection
Description
Dtc b1785 is output when the occupant classification ecu receives a collision
detection signal sent by
the front occupant classification sensor lh when an accident occurs.
Dtc b1785 is also output when the front seat rh is subjected to a strong impact,
even if an actual
acc ...
