Toyota RAV4 (XA40) 2013-2018 Service Manual: Fail-safe chart
- Fail safe operation
- If there is a problem with any sensor signals or
actuator systems, the skid control ecu prohibits the
power supply to the abs and traction actuator
and informs the ecm of vsc system failure.
The abs and traction actuator turns off the solenoids and the ecm shuts off vsc control (traction control signal) from the skid control ecu accordingly, the result being that it is as if the abs, trc and vsc systems were not installed.
- Abs control is prohibited, but ebd control continues as far as possible. If ebd control is impossible, the brake warning light comes on to warn the driver (see page bc-44).
- If system components have any malfunctions before
starting control, the operation stops immediately. If
system components have any malfunctions during
control, the control stops gradually so as not to trigger
a sudden change in vehicle conditions.
If it is impossible to control the systems, the warning light comes on to inform the driver of malfunctions in the systems (see page bc-44).
Hint:
- If the abs system malfunctions, the brake system operates normally without the abs system.
- If the brake actuator malfunctions, a gradual loss of brake performance is expected, and abs system control is prohibited.
Freeze frame data
Freeze frame data
Hint:
Whenever a dtc is detected or the abs operates,
the skid control ecu stores the current vehicle
(sensor) state as freeze frame data.
The skid control ecu stores ...
Data list / active test
Read data list
Hint:
Using the intelligent tester's data list allows switch,
sensor, actuator and other item values to be read without
out removing any parts. Reading the data list early in
...
Other materials:
Settings display
Vehicle settings and the content
displayed on the screen can be
changed by using the meter
control switches.
â– Setting procedure
1. Press and hold to display
the cursor on the content display
area (center).
2. Press or
with the cursor
on the content display
area (center) to select
and then pre ...
Multi-information display
Display contents
The multi-information display presents the driver with a variety of driving-
related data including the current outside air temperature.
Outside temperature display
Indicates the outside temperature.
The temperature range that can be
displayed is from -40„af (-40„ac) t ...
Torque converter clutch solenoid circuit
Description
The shift solenoid valve dsl is turned on and off by signals from the ecm to
control the hydraulic
pressure acting on the lock-up relay valve, which then controls operation of the
lock-up clutch.
Fail-safe function:
if the ecm detects a malfunction, it turns the shift sol ...
