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:
Horn system
Parts location
System diagram
Problem symptoms table
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms are
listed in order of probability in the "suspected area" column of
the table. Check each symptom by c ...
Brake Hold
The brake hold system
keeps the brake applied
when the shift lever is in D,
S or N with the system on
and the brake pedal has
been depressed to stop the
vehicle. The system
releases the brake when the
accelerator pedal is
depressed with the shift
lever in D or S to allow
smooth start off.
Enabling t ...
General maintenance (2006/01- )
Inspect steering linkage and gear housing
Check the steering wheel free play.
Check the steering linkage for looseness or
damage.
Check that the tie rod ends do not have
excessive play.
Check that the dust seals and boots are not
damaged.
Check that the boot clamps are not ...
