What if your odometer does not work but the speedometer does so how do you fix the odometer that does not work?
The odometer gears go frequently on Volvo 240's. There is a gear kit with an instructional DVD available from IPD.
I NEED AN ANSWER FOR THE 1997 VILLAGER
I have a 97 Villager and recently had this exact problem. I replaced the speed sensor (i.e. buy one at Autozone) and that was the fix. The ABS light might come on too as a symptom it is not working. Use penetrating oil on the only bolt that holds the old sensor in place(oil penetrates better if the engine is somewhat warm) and then s-l-o-w-l-y loosen it via small back and forth wrenching, else you can snap it off- located in the transmission housing. Put anti-seize on the bolt when retightening it.