Volvo 2003 670 D12 meritor zf transmission

I cant help with the error codes. I can provide a little info about the Freedomline that may help you.

The trans is electric over pneumatic so it must have 100psi in it's dedicated air tank. If the truck was shut off while still in gear and the air supply is at 0 you will need to fill it manually. The clutch must go through a self check mode where the clutch actuator cycle the clutch in and out for position before the engine will start.

The clutch actuator mounted on very bottom of trans will last about 500,000 mi +or -. It can go bad or barley work. The clutch fork can seize up and require greasing again this can cause a bind and not let the clutch actuator do the self check.

The voltage doubler on top of the trans can burn out, since your truck is an 03 if it has the original this would not be out of the question.

This transmission was built and designed for European trucks. The TCU Transmission Control Unit runs off of 24 volts.

I suggest pull all the connections from the wiring harness to the trans look for corrosion clean and fix contacts add die electric grease. You will be surprised alittle corrosion on the contacts will cause all sorts of problems codes etc.

ZF North America has a good tech person for the freedomline. They should be able to diagnosis your error codes. PH# 800-321-0784

 

I suggest before throwing all that money at it, swap in a Manual Transmission instead and more than half of your headaches will be gone.

 

Those codes relate to the wiring harness and transmission controller. First thing I would look for is damaged harness wiring and proper voltage