Code No. U1004:
CAN Time-out Error (AS&G) <Vehicles with AS&G system>
DIAGNOSTIC FUNCTION
CVT-ECU determines that malfunction is present if the periodic communication data sent
from the AS&G-ECU via CAN bus lines.
JUDGMENT CRITERIA
CVT-ECU cannot receive the periodic communication data from the AS&G-ECU.
PROBABLE CAUSES
- Malfunction of the CAN bus
- Malfunction of AS&G-ECU
- Malfunction of CVT-ECU