U0100 Lost communication (ECM A)
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0100
Lost Communication With
ECM/PCM "A"
When the ignition switch is ON,
TCM is unable to receive the
CAN communications signal
from ECM continuously for 2
...
Low-pressure flexible hose
Removal and Installation
CAUTION:
Perform oil return operation before each refrigeration system disassembly.
However, if a large amount
of refrigerant or oil is detected, do not perform oil return operation. Refer to
HA "Perform Oil
Return Operation".
REMOVAL
Use refrigerant ...