I have a 1999 maxima that just turned over 200000 miles and never had a problem with the digital odometer. Lately, while writing down the mileage at a fillup, I noticed the mileage was 348 on the trip odometer, but less than that on the odometer. After some testing I found out that anytime I went over 202320 miles, my odometer resets the mileage back to 202312. It only does this went I turn the car off and back on after going over 202320. The trip odometer’s do not change.
Speedometer,tachometer work fine. This is a manual tranny. Anyone got a clue? ECU,cluster?

I did try and jumper a dead battery for a stranded car. The trouble started then or shortly thereafter.

 

So what your saying is every 8 miles it resets itself back 8 miles?

Just doesn't make sense.

 

You connected directly from battery to battery, right? Next time, connect + from your good battery to the + of the dead battery and instead of the negative to negative, connect that cable to any metal part of the dead car, like the motor. In other words, go from your - good battery to the motor or chassis. This allows your battery to deliver charge to the dead car and reduces any potential backlash of electricity back to your car, potentially hurting any sensitive electronics.

As for fixing your ODO situation, I would suggest unplugging your battery for over 24 hours so your car forgets everything, and any and all stored charge gets a chance to dissipate.

If you do that, take note of the numbers on the ODO before the long disconnect.

DW

 

Your car is going back in time man, the flux capacitor must be on its way out...

I'd try swapping clusters and see if that fixes the problem though.

 

Yeah, I have to go over 8 miles before it resets itself back to the 202310 mark. Like on a short trip 5 miles it's 202315 or so. It will not reset. I go over the 202320 mark it resets.
Is the mileage kept in the cluster or the ecu, anybody??
It never resets the mileage while the car is running.

 

Mileage is kept in the cluster, not the ECU.

 

I had to drive 100 miles yesterday and the odometer went to 2024XX. Now it resets back to 202410 when it goes to 20242X. Must be the first two digits. Must be a bad cluster. Not sure I want to screw with fixing it. Thanks for all the info!!!

 

Its a really easy swap, I'd just go to the scrap yard and grab another cluster and see if it works on your car.

 

that sounds like the cluster to me