[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
42 -BODY > 42B-KEYLESS OPERATION SYSTEM (KOS) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > U1190 No receive fault detect signal
Code No. U1190 No receive fault detect signal
 
 
caution
  • If diagnosis code No. U1190 is set, diagnose the CAN bus lines.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
DIAGNOSTIC FUNCTION
When the signal from the ETACS-ECU cannot be received, KOS&OSS-ECU sets diagnosis code No.U1190.
 
 
JUDGEMENT CRITERIA
Check Conditions
  • When all the following conditions are met.
    1. Power supply mode: "ON"
    2. ETACS-ECU system voltage is at 10 to 16 V.
Judgement Criterion
  • After the following condition is met, 5,000 ms or more have elapsed.
    1. CAN signal from the ETACS-ECU cannot be received.
 
 
PROBABLE CAUSES
  • Malfunction of the CAN bus line
  • Malfunction of ETACS-ECU
  • Malfunction of KOS&OSS-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnostics
Use the M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 2. M.U.T.-IIISE other system diagnosis code
Check again if the diagnosis code is set in the ETACS-ECU.
Is the diagnosis code set?
Diagnose the ETACS-ECU (Refer to GROUP 54A - ETACS - Troubleshooting ).
Go to Step 3.
 
STEP 3. M.U.T.-IIISE other system diagnosis code
Check again if the diagnosis code is set in the SRS-ECU.
Is the diagnosis code set?
Replace the ETACS-ECU (Refer to GROUP 54A - ETACS - ETACS-ECU ).
Go to Step 4.
 
STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set in the KOS&OSS-ECU.
(1) Erase the diagnosis code.
(2) Turn the power supply mode of the engine switch from "OFF" to "ON".
(3) Check if the diagnosis code is set.
Is the diagnosis code set?
Replace the KOS&OSS-ECU and register the ID codes (Refer to ).
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to cope with Intermittent Malfunction ).