I have what looks to be a transmission problem.
02 Marquis C-12/Allison transmission
While driving slowly (30mph), I received a red Check Transmission light. At the same time the speedometer went stop to stop and then died at zero. Also, I didn't have any lights on my transmission control. I pulled off the road and parked. At this point the engine is operating normally, just no indication on the transmission. I did not attempt to shift to a gear; rather just selected Neutral and shut the engine down. The engine will not start now and is not receiving any information from the transmission. I have X/X on the Silverleaf in place of gear selected / actual indication. Also no data on transmission oil temp. A visual check of engine and transmission shows nothing out of the ordinary. No fluids leaking, etc.
Any ideas on what may be going on?
Thanks in advance!