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:
Brake system malfunction
Description
This dtc is output when the vsc system has a problem. Check the vsc system
when this dtc is
output.
Inspection procedure
Hint:
This circuit uses can communication. Therefore, if there are any malfunctions
in the communication
circuit, one or more dtcs in the can communi ...
Deterioration of battery
Description
The ecm determines the battery power according to the voltage of the batt
terminal while the engine is
running (not cranking).
Inspection procedure
Inspect battery
Inspect the battery specific gravity.
Check the specific gravity of each cell.
Standard gravity: ...
Rear combination light assembly
Components
Removal
Hint:
Use the same procedures for the rh and lh sides.
The procedures listed below are for the lh side.
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal t ...
