Famous 2003 Honda Accord Check Engine Light Blinking Ideas. A blinking d on the transmission means a problem with the transmission. Web the most common cause of flashing or blinking check engine light is a misfiring engine, which can be caused by several different engine issues.

However, you may be unaware that the oil level on your engine drops. Remove it, and pull the clock fuse. If that’s all, your honda check engine light will reset within two days.