Caterpillar Odometer not available

Let me start with I love the product. I have everything I need except the odometer and trip meter. Says N/A for both. I cannot find a setting to get these to work. I wouldn’t even mind having the manually put the mileage in and then it just adds to it via speedometer. I have an aftermarket fuel sender and I don’t feel like it’s super accurate, so I’d like to verify levels by mileage. Any help will be appreciated. 2003 Chevrolet Kodiak C6500 with Cat 3126E and Allison 2000 transmission.

Check the Repair page. If both Distance and Odometer show NA then you're out of luck. You could try the App Settings Odometer Offset to see if you can manually enter it but you would need to do this all the time.

Also, you can try the J1939 and J1708 App Settings to see if maybe it's on one of those data buses.