No Tachometer present, Limp mode
 

Hello everyone, I can not fix my issues. When I start the vehicle it all seems ok but ones it's running I have no tachometer present and the trifecta lights appear. It does not shift (stays in high gear). When ever I plug the OBD reader it said that I don't have communication with DME. Please help...

disconnect the battery, both connectors! and touch the two together, go have a coffee, then come back and reconnect the battery and try again? if its not working, look at the fuse panel(s) see if there are any blown fuses? maybe a crank position sensor is out?
good luck!

I have tried that and nothing changes. I also don't have a speedometer reading.

On the Peake code reader I get:
DC= CAN timeout,EGS
DD= CAN timeout,ASC/DSC

cluster unplugged? or connector not making proper contact!?
sorry, electrical is not my forte
best of luck

Same issue here. A little research from these past post and it seems that my ABS is going out. No A/C, no tach, no speedometer, trifecta of lights, limp mode on a freshly built transmission, and not able to use the key to lock the doors(battery died in remote). She's parked for the moment. Just spent 4 grand on the trans.

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Disconnect battery.......leave tailgate on up position........Open bonnet....

Check for water ingress....or anything unusual.

Follow steps/link below courtesy: Pelican parts

DME and TCM

The DME is the front most mounted module and has a black electrical connector (red arrow). The TCM is the rear most control module and has a blue electrical connector (green arrow).


http://www.pelicanparts.com/techarti...mall/pic06.jpg