Code No.U1190: Can’t receive fault detection control signal


DIAGNOSIS CODE SET CONDITIONS



PROBABLE CAUSES



  • Malfunction of the ETACS-ECU
  • Malfunction of the CAN bus

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Using M.U.T.-III, perform CAN busline diagnosis.

Q. Is the check result normal?
Go to Step 2.
Repair the CAN busline (Refer to GROUP54C, Diagnosis - Can Bus Diagnostic Chart ), and then go to Step 3.

STEP 2. M.U.T.-III diagnosis code
Reconfirm whether the diagnosis codes are output from A/T-ECU.
(1)Erase the diagnosis codes being output.
(2)Ignition switch: LOCK (OFF) to ON
(3)Confirm whether the diagnosis codes are output.

Q. Is the diagnosis code output?
Replace the ETACS-ECU, and then go to Step 3.
The procedure is complete.

STEP 3. M.U.T.-III diagnosis code
Reconfirm whether the diagnosis codes are output from A/T-ECU.
(1)Erase the diagnosis codes being output.
(2)Ignition switch: LOCK (OFF) to ON
(3)Confirm whether the diagnosis codes are output.

Q. Is the diagnosis code output?
Return to Step 1.
The procedure is complete.