Toyota RAV4 manuals

Toyota RAV4 Service Manual: Diagnosis system

  1. Diagnosis

If the skid control ecu detects a malfunction, the abs, vsc and brake warning lights and the slip, downhill assist control and auto lsd indicator lights come on in accordance with the trouble area to warn the driver.

The table below indicates which lights come on when there are malfunctions in particular functions.

Toyota RAV4. Diagnosis system


Light on


Light on (blinking)


Light off


Hint:

  1. Check warning light and indicator light

  1. Release the parking brake lever.

Notice:

Before releasing the parking brake lever, set chocks to hold the vehicle for safety.

Hint:

When the parking brake is applied or the brake fluid level is low, the brake warning light comes on.

  1. When the ignition switch is turned on, check that the abs, vsc and brake warning lights and the slip, downhill assist control and auto lsd indicator lights come on and go off in about 3 seconds.

Toyota RAV4. Check warning light and indicator light


Hint:

If the warning lights do not illuminate, confirm whether the bulbs have burned out, and also check for can communication system dtcs, since the skid control ecu and combination meter are connected by the can communication line.

If the warning light remains on, perform relevant troubleshooting procedures. The relevant troubleshooting procedures are in the sections listed in the table below.


Terminals of ecu
Skid control ecu Hint: *1: W/ 16-inch disc *2: W/ downhill assist control *3: For 2wd (w/ auto lsd) Check skid control ecu Disconnect the a19 ecu connector. Measure the vo ...

Dtc check / clear
Check dtc (when using intelligent tester) Connect the intelligent tester (with can vim) to the dlc3. Turn the ignition switch on. Turn the tester on. Read the dtcs by following the pr ...

Other materials:

Motor terminal voltage malfunction
Description The power steering ecu supplies the current to the power steering motor through the motor circuit. Wiring diagram Inspection procedure Read value of intelligent tester (motor voltage) Connect the intelligent tester (with can vim) to the dlc3. Turn the ignitio ...

Inspection
Inspect no. 1 Chain tensioner Check that the plunger moves smoothly when the ratchet pawl is raised with your finger. Release the ratchet pawl, then check that the plunger is locked in place by the ratchet pawl and does not move when pushed with your finger. Inspect chain ...

Communication malfunction no. 1
Description This dtc is output when a communication error occurs between the transponder key amplifier and transponder key ecu. Some possible reasons for the communication error are: 1) 2 or more ignition keys are positioned too close together, or 2) noise is occurring in the communicatio ...

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