Toyota RAV4 manuals

Toyota RAV4 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

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, pow ...

Pig power supply voltage malfunction
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:

Daytime running light relay
On-vehicle inspection Inspect day time running light relay Remove the no. 2 Relay, no. 3 Relay and no. 4 Relay from the engine room no. 2 Relay block. Measure the resistance of the relays. Standard resistance: No. 2, No. 4 No. 3 If the result is not as specified, replace th ...

Inside vehicle
General maintenance Performing the following maintenance checks on the vehicle is the owner's responsibility. The owner may perform the maintenance or take the vehicle to a service center. Check the parts of the vehicle described below on a daily basis. In most cases, special tools are not requ ...

Operation check
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