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91 Ls400 Speedometer Failure


MQueue

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My speedometer was working fine this AM, then I noticed it flat lined. I couldn't determined from the owner's manual what fuse or curcuit breaker I should check. At lunch when I went to buy fuses, I noticed that the "O/D Off" light was flashing. Of course, that condition isn't mentioned in the manual.

Does anyone know off hand if this is electrical or mechanical? What should I look for? TIA!

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  • 2 months later...

same issue with my ls, and the o/d off lights is in the manual, it means there is a possible failure with the tranny, but i think it's because the tranny has a speed sensor and if the speedometer isn't working the the speed sensor isn't getting info. also when i spoke to toyota a guy told me that the speedometer and the odometer are linked therefore tamperproof, so most likely you odometer is bad too. sorry i dont have a solution for the issue just some info i've recieved over time

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