Does speedoMETER not working affect odometer?

Yes, if the speedometer is not working, it can affect the odometer, although they are separate systems. Both typically rely on the vehicle's speed sensor; if the sensor fails, the speedometer may not display speed, and the odometer may not record distance accurately. In some cases, the odometer might continue to function independently, but it often correlates with the speedometer's readings. Therefore, a malfunction in one can indicate potential issues with the other.