[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > ETACS > DIAGNOSIS CODE PROCEDURES > CODE No. U0146 GATEWAY CAN TIMEOUT
Code No.U0146 GATEWAY CAN timeout
 
 
caution
  • If diagnosis code No. U0146 is set in the ETACS-ECU, always diagnose the CAN bus line.
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
DIAGNOSTIC FUNCTION
If the signal from gateway-ECU cannot be received, the ETACS-ECU sets diagnosis code No. U0146.
 
 
JUDGEMENT CRITERIA
After the following statuses continue to be true for 5 seconds, if the communication with the gateway-ECU cannot be established for 2,500 ms or more, the ETACS-ECU determines that a problem has occurred.
  • No abnormality is present to the network.
  • Ignition switch is in the "ON" position.
  • No abnormality is present to the power supply fuse (IOD fuse), or the odometer value is at 80.5 km or more.
  • ETACS-ECU system voltage is at 10-16 V.
 
 
PROBABLE CAUSES
  • Malfunction of the gateway-ECU
  • Malfunction of the ETACS-ECU
  • Malfunction of the CAN bus
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnostics
Use M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2.
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).
 
STEP 2. Check the M.U.T.-IIISE Diagnosis code for other systems
Check if diagnosis code No.U0141 is set in the combination meter.
Is the diagnosis code set?
Go to Step 3.
Go to Step 4.
 
STEP 3. Check whether the diagnosis code is set again.
Check again if diagnosis code No.U0146 is set in the ETACS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(3) Check if the diagnosis code is set.
Is the diagnosis code set?
Replace the ETACS-ECU.
A poor connection, open circuit, or other intermittent malfunction in the CAN bus line between the gateway-ECU and ETACS-ECU (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
 
STEP 4. Check whether the diagnosis code is set again.
Check again if diagnosis code No.U1018 is set in the ETACS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(3) Check if the diagnosis code is set.
Is the diagnosis code set?
Replace the gateway-ECU.
A poor connection, open circuit, or other intermittent malfunction in the CAN bus line between the gateway-ECU and ETACS-ECU (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).