Code No.U1190
No receive fault detect signal
TROUBLE JUDGMENT
ETACS-ECU sends the diagnosis code (U code) detection permission or prohibition signal
to each ECU connected to the CAN bus line. If the heater controller assembly (A/C-ECU) cannot
receive the diagnosis code (U code) detection permission or prohibition signal for 5 seconds
after turning the electric motor switch to ON position, diagnosis code U1190 will be set.
PROBABLE CAUSES
- Malfunction of the ETACS-ECU
- Malfunction of CAN bus line