Toyota RAV4 (XA40) 2013-2018 Service Manual: Engine control system malfunction
Description
If a malfunction in the engine control system is detected, the operations of vsc and trc are prohibited by the fail-safe function. When the signals from the engine are input normally, the fail-safe is canceled and the dtc is not stored.
Inspection procedure
- Check harness and connector (momentary interruption)
- Using the data list of the intelligent tester, check for any momentary interruption in the wire harness corresponding to the dtc (see page bc-23).
Ok: there are no momentary interruptions.
Hint:
Perform the above inspection before removing the sensor and connector.
- Check dtc for engine control system
- Clear the dtc (engine control system).
- Check the dtc (engine control system).
Result 
Repair engine control system
- Repair or replace harness and connector (ecm - skid control ecu)
- Reconfirm dtc
- Clear the dtc (see page bc-47).
- Perform a road test.
- Check if the same dtc is recorded (see page bc-47).
Result 
End
Open in abs solenoid relay circuit
Description
The solenoid relay supplies power to the abs solenoid and trc solenoid.
After the ignition switch is turned on, the vehicle speed has reached 6 km/h (4
mph) and the solenoid is
...
Ecm communication circuit malfunction
Description
The circuit is used to send trc and vsc control information from the skid
control ecu to the ecm, and
engine control information from the ecm to the skid control ecu.
Inspecti ...
Other materials:
Window lock switch
Press the switch to lock the passenger
window switches.
Use this switch to prevent children
from accidentally opening or closing
a passenger window.
The power windows can be operated when
Vehicles without a smart key system
The engine switch is in the “on” position.
Vehicles ...
Downhill assist control indicator light does not come on
Description
Refer to the description of "downhill assist control indicator light remains
on" (see page bc-156).
Wiring diagram
Refer to the downhill assist control indicator light circuit (see page
bc-157).
Inspection procedure
Check can communication system
Check if the ...
Drl relay circuit
Description
The main body ecu controls the daytime running light no. 2 Relay (marking:
drl no.2).
Wiring diagram
Inspection procedure
Inspect daytime running light relay (marking: drl no. 2, Drl no. 3,
Drl no. 4)
Remove the no. 2 Relay, no. 3 Relay and no. 4 Relay from
th ...
