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:
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification
system. This system detects the conditions of the front
passenger seat and activates or deactivates the devices for the
front passenger.
Seat belt reminder light
Srs warning light
“Air bag off” indicator light ...
Battery temperature sensor circuit
Description
The battery temperature sensor installed on the battery current sensor
detects battery temperature.
A thermistor is integrated into the battery temperature sensor, and the
resistance in the battery
temperature sensor changes according to the battery temperature.
The r ...
Brake pedal load sensing switch
Description
The brake pedal load sensing switch is turned on when the brake pedal is
depressed with force exceeding
a predetermined level.
The skid control ecu detects if the brake pedal is depressed or not via this
circuit.
Wiring diagram
Inspection procedure
Notice:
When repla ...
