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What causes the low oil light on a Toyota Rav4?

The low oil light on your Toyota RAV4 can be caused by a few things:

1. Low oil level: This is the most common cause of the low oil light. If the oil level is too low, the oil pump can't circulate enough oil to lubricate the engine, which can cause damage to the engine. Check the oil level using the dipstick and add more oil if necessary.

2. Oil pressure sensor problem: The oil pressure sensor measures the oil pressure in the engine and sends a signal to the ECU (Engine Control Unit). If the oil pressure sensor is faulty, it can send a false signal to the ECU, which can cause the low oil light to come on.

3. Oil pump problem: The oil pump is responsible for circulating oil throughout the engine. If the oil pump is faulty, it can't circulate enough oil to lubricate the engine, which can cause damage to the engine.

4. Engine leaks: Engine leaks can cause the oil level to drop, which can turn on the low oil light. Check for leaks around the oil pan, valve cover, and oil filter.

5. Other problems: In rare cases, the low oil light can come on due to other problems, such as a faulty oil filter or a problem with the oil cooler.

If the low oil light comes on, it's important to check the oil level and add more oil if necessary. If the oil level is full, you should take your car to a mechanic to diagnose the problem. Driving with low oil can cause serious damage to the engine.