Toyota RAV4 manuals

Toyota RAV4 Service Manual: Check and replace ecu

Notice:

Toyota RAV4. Check and replace ecu


  1. First, check the ecu ground circuit. If it is faulty, repair it. If it is normal, the ecu could be faulty.

    Temporarily replace the ecu with a normally functioning one and check if the problem symptoms occur. If the problem symptoms disappear, replace the original ecu.

  1. Measure the resistance between the ecu ground terminal and body ground.

    Standard resistance: Below 1 ù

  2. Disconnect the ecu connector. Check the ground terminal on the ecu side and wire harness side for bending, corrosion or foreign matter. Lastly, check the contact pressure of the female terminals.
Check for short circuit
If the wire harness is ground shorted (fig. 5), Locate the section by conducting a resistance check with the body ground (below). Check the resistance with the body ground. Disconne ...

Terms
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Other materials:

Lumbar support adjuster assembly
Inspection Inspect lumbar support adjuster assembl Check operation of the lumbar support adjuster. Check if the lumbar support adjuster moves smoothly when the battery is connected to the lumbar support adjuster motor connector terminals. Ok If the result is not as spec ...

Body
General maintenance Tighten bolts and nuts Tighten the bolts and nuts on the chassis parts listed below, if necessary. Front axle and suspension Drivetrain Rear axle and suspension Brake system Engine mounting Other chassis parts Tighten the bolts and nuts on the bo ...

Freeze frame data
Freeze frame data Hint: Whenever a dtc is detected or the abs operates, the skid control ecu stores the current vehicle (sensor) state as freeze frame data. The skid control ecu stores the number of times (maximum: 31) the ignition switch has been turned from off to on since the ...

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