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sprinkles08, ASE Certified Technician
Category: Transmissions
Satisfied Customers: 21599
Experience:  Chrysler/Dodge/Jeep master tech ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans Specialist
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Overdrive off light is on and it won't go into overdrive

Customer Question

Overdrive off light is on and it won't go into overdrive when I push button eco light and overdrive off light is flashing
Submitted: 1 month ago.
Category: Transmissions
Expert:  david craig replied 1 month ago.

Hi Im David, thanks for visiting the site. you will need a tool a little more sophisticated than a parts stores generic code reader. You need one with transmission access capability. If there are no codes retrieved then you fault is actually not the OD cancel signal light warning you of a concern but a short within your overdrive switch or its wiring to the computer.

Customer: replied 1 month ago.
I have to get someone with a code reader
Expert:  david craig replied 1 month ago.

or if you have a meter we can check some wiring

Expert:  david craig replied 1 month ago.

do you still need assistance?

Expert:  david craig replied 29 days ago.


Expert:  sprinkles08 replied 26 days ago.

Hello and welcome to JustAnswer!

If the overdrive off light is on without you having turned it off manually then odds are the transmission control module is seeing an issue that will prevent proper operation and setting a fault code. This will take some testing to diagnose either way, the first step will be to check for fault codes and it may also be necessary to monitor some data with a scan tool.

Were you able to check for fault codes?