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If the check engine light comes on in your 2012 Toyota Camry, it's important to pull over immediately to prevent further strain on your engine. Once you've stopped, you can use an OBD II scan tool to retrieve the stored code in the ECU. If the code indicates P1604, it signals an issue with the vehicle's starting function. Typically, this problem is triggered by a drained battery or insufficient fuel pressure. Start by checking the resting voltage of your battery and ensure it reads above 12 volts. If it's below that threshold, the light likely came on due to a drop in voltage.
The p1604 error code indicates an issue with the engine preventing it from starting correctly. Typically, this is often caused by a weak battery or low fuel levels in the tank.
Another factor contributing to the code P1604.