Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Ig power supply voltage malfunction

Toyota RAV4. 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

Toyota RAV4. Ig power supply voltage malfunction


Inspection procedure

  1. Read value of intelligent tester (ig power supply)

  1. Connect the intelligent tester (with can vim) to the dlc3.
  2. Turn the ignition switch on.
  3. Select the item "ig supply" in the data list and read the value displayed on the intelligent tester.

Toyota RAV4. Read value of intelligent tester (ig power supply)



  1. Inspect fuse (ecu-ig1)

  1. Remove the ecu-ig1 fuse from the instrument panel junction block.
  2. Measure the resistance of the fuse.

Ok: below 1




  1. Check harness and connector (battery - power steering ecu)

Toyota RAV4. Check harness and connector (battery - power steering ecu)


  1. Disconnect the e18 and a1 power steering ecu connectors.
  2. Measure the voltage of the wire harness side connectors.

Standard voltage




Replace power steering ecu

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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, pow ...

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Description When a problem occurs in the system, the power source relay circuit is shut off to stop the power assist. Wiring diagram Inspection procedure Read value of intelligent ...

Other materials:

Diagnosis system
Description When troubleshooting obd ii (on-board diagnostics) vehicles, the intelligent tester (complying with sae j1987) must be connected to the dlc3 (data link connector 3) of the vehicle. Various data in the vehicle's ecm (engine control module) can be then read. Obd ii regulations ...

Utility vehicle precautions
This vehicle belongs to the utility vehicle class, which has higher ground clearance and narrower tread in relation to the height of its center of gravity to make it capable of performing in a wide variety of off-road applications. Utility vehicle feature Specific design characteristics give ...

Child restraint seat tether anchor
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