Toyota RAV4 manuals

Toyota RAV4 Service Manual: Power supply relay failure

Toyota RAV4. Power supply relay failure


Description

If the power steering ecu detects these dtcs, it shuts off the motor relay circuit (built into the power steering ecu) and stops power assist.


Inspection procedure

  1. Reconfirm dtc

  1. Check for dtc.

Ok: dtc is not output.



Replace power steering ecu

Pig power supply voltage malfunction
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Assist map number un-writing
Description The power steering ecu outputs this dtc when it determines that the assist map is not written in the ecu. Hint: The assist map data is written in the power steering ecu to contro ...

Other materials:

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 the number of times (maximum: 31) the ignition switch has been turned from off to on since the ...

Terminals of ecu
Check instrument panel junction block (main body ecu) Measure the voltage of the connectors. If the result is not as specified, the junction block (main body ecu) may have a malfunction. ...

Removal (2006/01- )
Disconnect cable from negative battery terminal Caution: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. Remove roof headlining assembly Remove the roof headlining (see page ir ...

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