Overdrive Switch
Using a screwdriver, remove overdrive switch from selector lever, located below selector lever button. Using a DVOM, check continuity between overdrive switch terminals No. 3 and 5 with switch in ON position. Continuity should exist. With switch in OFF position, check continuity between terminals No. 3 and 4. Continuity should exist. If continuity is not as specified, replace switch. See Fig 1 .