Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Ecu malfunction

Toyota RAV4. Ecu malfunction


Description

Inspection procedure

If the power steering ecu detects these dtcs, it will shut off the motor relay circuit (built into the power steering ecu) and stop power assist. However, power assist continues if dtc c1533 is output.


  1. Reconfirm dtc

  1. Check for dtc.

Ok: dtc is not output.



Replace power steering ecu

Motor rotation angle sensor malfunction
Description The motor rotation angle sensor detects the motor rotation angle and sends this information to the power steering ecu. Wiring diagram Inspection procedure Check conne ...

Ig power supply voltage malfunction
Description The power steering ecu distinguishes the ignition switch status as on or off through the ig power source circuit. Wiring diagram Inspection procedure Read value of inte ...

Other materials:

Ventilation valve
Components Removal Remove no. 1 Engine cover (see page em-22) Remove ventilation valve sub-assembly Disconnect the ventilation hose from the ventilation valve. Using a 22 mm deep socket wrench, remove the ventilation valve. Inspection Inspect ventilation val ...

Reassembly
Install generator rotor assembly Install the washer onto the generator rectifier end frame. Install the generator rotor onto the generator rectifier end frame. Using a 32 mm socket wrench and press, slowly push the generator drive end frame onto the generator ...

Only back door lock / unlock functions do not operate
Description The main body ecu receives lock / unlock switch signals and activates the door lock motor accordingly. Wiring diagram Inspection procedure Inspect back door with motor lock assembly Apply the battery voltage to the door lock motor and check the operation of the d ...

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