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:

Dtc check / clear
Check dtc Hint: When dtc b1650/23 is detected as a result of troubleshooting for the airbag system, troubleshoot the occupant classification system. Use the intelligent tester (with can vim) to read and clear dtcs, otherwise the dtcs cannot be read and cleared. Connect ...

Removal
Hint: Use the same procedures for the lh side and rh side. 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 to prevent airbag and ...

Terminals of ecu
Check tire pressure warning ecu Disconnect the e56 ecu connector. Measure the voltage and resistance of the wire harness side connector. If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the e56 ecu connector. Measure the ...

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