STEP 1. Using scan tool (M.U.T.-IIISE), diagnose CAN bus line.
(1) caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE). |
Connect scan tool (M.U.T.-IIISE). Refer to "How to Connect the Scan Tool (M.U.T.-IIISE)
."
(2) Use scan tool (M.U.T.-IIISE) to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 3. Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ). On completion, go to Step 2.
STEP 2. DTC recheck after resetting CAN bus lines
(1) Erase the DTC.
(2) Engine start
(3) Check if the DTC is set.
Is DTCs No.U0100, U0121 or U0126 set?
Go to Step 3. This diagnosis is complete.
STEP 3. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.
STEP 4. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
(1) Erase the DTC.
(2) Engine start
(3) Check if the DTC is set.
Is DTCs No.U0100, U0121 or U0126 set?
Replace the EPS-ECU (Refer to ). Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).