LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Jaguar
>>
2014
>>
XF Base
>>
Repair and Diagnosis
>>
General Information
>>
DTC Index
>>
Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- XF/X250
>>
Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Module (TCM)
>>
Description And Operation
>>
DTC U0100-63: Lost Communication With ECM/PCM "A" - Circuit/component protection time-out
>>
Possible Cause
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Possible Cause
Engine control module power or ground circuit open circuit, high resistance
High speed CAN bus circuit short circuit to ground, short circuit to power, open circuit, high resistance
Engine system fault