Base audio
Wiring diagram










Ecu diagnosis information
Basic inspectionPrecaution for work
When removing or disassembling each component, be careful not to damage
or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
When removing (disengaging) components with a screwdriver or similar
tool, be sure to wrap the component
with a ...
DTC/Circuit diagnosis
U0073 COMMUNICATION BUS A OFF
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
U0073
COMM BUS A OFF
(Control Module Communication
Bus A Off)
TCM communication blockage lasts for 2 sec ...
Keys
Remote keyless entry keyfob (if so equipped)
Integrated door lock keyfob
Key number plate
CAUTION
Do not leave the ignition key inside the
vehicle when you leave the vehicle.
A key number plate is supplied with your keys.
Record the key number and keep it in a safe place
(such as ...