Toyota-uses the coolant temperature input signal to control the Overdrive operation, have the sensor checked hot and cold
November, 18, 2011 AT 5:59 PM
Thank you but where is the sensor located?
November, 23, 2011 AT 1:57 PM
When OD button is depressed, does the OD-OFF light comes on?
November, 23, 2011 AT 9:04 PM
Yes it does but the trans does not shift?
November, 23, 2011 AT 9:08 PM
Also check the throttle and vehicle speed sensors-scan the computer for code/s
November, 24, 2011 AT 2:26 PM
If the tran is not shifting into overdrive but shifts normally for all othere gears, have the overdrive solenoid checked. Quuite often the solenoids gets stuck and woould nto shift. It might start shifting again after some running.