How to Reset Car Codes by Disconnecting the Battery?

Answer When an error code has been thrown by the ECU, it triggers a "check engine" or "service engine soon" light on the dash. Upon troubleshooting and fixing the corresponding problem, it is commonplace ... Read More »

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How to Test an Alternator by Disconnecting the Battery?

Proper testing of an alternator requires the use of a multimeter or battery tester. An alternator produces direct current (DC) but can also produce alternative current (AC), which can damage the va... Read More »

Does Disconnecting a Car Battery Clear the Computer?

As of 1996, all cars sold in the United States have come equipped with an on-board diagnostics computer system that retains error codes and engine settings in its memory. Some have the ability to r... Read More »

My Toyota Rav4 Won't Start After Disconnecting Battery?

All cars, including a Toyota Rav4, need a battery to start the engine. It provides the power to engage the starter motor in the engine, which then turns the engine over. The battery then provides h... Read More »

How to Reset OBD Codes?

OBD codes (On-Board Diagnostics) let you know something is wrong with your car's engine. Once the problem has been repaired, the code should either erase itself or be removed. It's inadvisable to r... Read More »