Flashing overdrive light

MEGHAN PAYNE

MEMBER
2002 MAZDA TRIBUTE
3.0L
6 CYL
4WD
AUTOMATIC
175,000 MILES

I just replaced the transmission speed sensor. And put new transmission oil in the car. Still runs really good. But the light comes on after 2 blocks and only going 30 MPH. The RPMs run higher than usual. The check engine light has not come on. Transmission oil still was red like it should be and didn't smell burnt.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Hi,

If the overdrive light is flashing, there are diagnostic trouble codes. The scan tool you are using may not be able to retrieve all the trouble codes.

What I am going to recommend is having the can-bus scanned on the vehicle. CAN stands for controller area network. Basically, all computers/modules are tied together via a few wires. This type of scan will retrieve codes regardless of the module in which they are stored.

Here is a link that explains how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know what you find or if you have other questions.

Take care and I'll watch for your reply.

Joe

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Tuesday, December 14th, 2021 AT 7:22 PM

MEGHAN PAYNE

MEMBER
2 POSTS

Hi,

I ordered the scanner. And when I plugged it in and ran the scan. It didn't give me any codes. Could it be simply a relay or maybe just the battery? Because now it has been sitting so long the battery has drained.

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Wednesday, December 29th, 2021 AT 1:55 PM

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Hi,

There is a chance that if the battery died, codes were lost. Recharge the battery and see if the problem still exists. If it does, then scan for codes.

Let me know what you find.

Joe

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Wednesday, December 29th, 2021 AT 5:29 PM