Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 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:

Removal
Discharge refrigerant from refrigeration system (see page ac-172) Disconnect cable from negative battery terminal Caution: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. Remove ...

Lubrication system
On-vehicle inspection Check engine oil level Warm up the engine, stop the engine and wait for 5 minutes. Check that the engine oil level is between the l and f marks of the oil dipstick. If low, check for leakage and add oil up to the f mark. Notice: Do not add engine oil a ...

PCS (Pre-Collision System)
The pre-collision system uses a radar sensor and front camera to detect objects in front of the vehicle. When the system determines that the possibility of a frontal collision with an object is high, a warning operates to urge the driver to take evasive action and the potential brake pressure is inc ...

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