Dtc U0001 High Speed Can Communication Bus
Engine. Lexus Gs430, Gs300. Uzs190 Grs190
DESCRIPTION
INSPECTION PROCEDURE
CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC U0001)
DTC U0001 High Speed CAN Communication Bus |
DESCRIPTION
The engine control unit and the transmission control unit are located inside the ECM. The engine control unit communicates with the transmission control ECU and the Controller Area Network (CAN).If there is a problem in this intercommunication, the ECM sets a DTC.DTC No.
| DTC Detection Condition
| Trouble Area
|
U0001
| - Following conditions are met for 2 seconds (1 trip detection logic):
- Engine switch on (IG)
- Battery voltage is 10 V or more
- No intercommunication between engine control ECU and transmission control ECU
| ECM
|
INSPECTION PROCEDURE
| 1.CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC U0001) |
- Result:
Display (DTC output)
| Proceed to
|
U0001
| A
|
U0001 and other DTCs
| B
|