Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Abs warning light remains on

Description

If any of the following conditions are detected, the abs warning light remains on:

  1. The ecu connectors are disconnected from the skid control ecu.
  2. There is a malfunction in the skid control ecu internal circuit.
  3. There is an open or short in the wire harness between the combination meter and the skid control ecu.

Hint:

The intelligent tester may not be used when there is a malfunction in the skid control ecu.

Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

  1. Check can communication system

  1. Check if the can communication system dtc is output (see page ca-34).

Result




  1. Inspect skid control ecu connector

  1. Check if the skid control ecu connector is properly installed.

Ok: the skid control ecu connector is properly installed.



  1. Check wire harness (skid control ecu - battery and body ground)

Toyota RAV4. Check wire harness (skid control ecu - battery and body ground)


  1. Disconnect the a19 ecu connector.
  2. Measure the resistance of the wire harness side connector.

Standard resistance


  1. Measure the voltage of the wire harness side connector.

Standard voltage




  1. Perform active test by intelligent tester (abs warning light)

  1. Select the active test, generate a control command, and then check that the abs warning light operates.

Toyota RAV4. Perform active test by intelligent tester (abs warning light)


Ok: the abs warning light is turned on or off.

Hint:

When the abs warning light remains illuminated, opens in the wire harness of the combination meters or abnormalities in the meter circuit should be considered.



Replace abs and traction actuator assembly

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Abs warning light does not come on
Wiring diagram Refer to the abs warning light circuit (see page bc-135). Inspection procedure Check can communication system Check if the can communication system dtc is output (see page ...

Other materials:

Dtc check / clear
Check dtc Connect the intelligent tester (with can vim) to the dlc3. Turn the ignition switch on and turn the intelligent tester on. Read the dtc by following the prompts on the tester screen. Hint: Refer to the intelligent tester operator's manual for further details. ...

Checking tires
Check if the treadwear indicators are showing on the tires. Also check the tires for uneven wear, such as excessive wear on one side of the tread. Check the spare tire condition and pressure if not rotated. New tread Worn tread Treadwear indicator The location of treadwear indicators is show ...

Main body ecu communication stop mode
Description Wiring diagram Inspection procedure Notice: Turn the ignition switch off before measuring the resistances of the main wire and the branch wire. After the ignition switch is turned off, check that the key reminder warning system and light reminder warning syste ...

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