LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2010 >> S4 Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1094 (Automatic Transmission - 10R80 (2 Of 2)) >> Diagnosis And Testing >> Diagnostic Trouble Code (DTC) Charts and Pinpoint Tests - 3.5L EcoBoost (272kW/370PS) >> Pinpoint Tests >> Pinpoint Test K : DTC U0146:00 >> Notes

Pinpoint Test K : DTC U0146:00: Notes

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Wiring Diagram Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions 
The TCM communicates with the GWM over the CAN. If the TCM does not receive messages from the GWM, features such as the keyless entry can be inoperative.
DTC Fault Trigger Conditions 
DTC Description Fault Trigger Condition
TCM U0146:00 Lost Communication With Serial Data Gateway "A": No Sub Type Information Sets when the TCM detects data messages are missing from the GWM over the CAN.

Possible Sources 

Network communication concern

TCM

GWM