my 2004 toyota thundra overdrive lite going off and on by it self.
Dec 1, 2010 at 6:35 AM
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KHLOW2008
✓Experienced Mechanic
41,812 POSTS
The OD light blinking indicates an error has been detected in the transmisison control system. A scan is required to retrieve the trouble codes to proceed with truobleshooting and rectification.