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DAS U0401 ECM CAN 1 DAS-369 < DTC/CIRCUIT DIAGNOSIS > [LDW & LDP] C D E F G H I J K L M B N P A U0401 ECM CAN 1 DTC Logic INFOID:0000000006228204 DTC DETECTION LOGIC NOTE: "ADAS CONTROL UNIT : DTC Logic" . DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Start the engine. 2. Turn the LDP system ON. 3. Perform “All DTC Reading” with CONSULT-III. 4. Check if the “U0401” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”. Is “U0401” detected as the current malfunction? YES >> Refer to DAS-369, "Diagnosis Procedure" NO >> Refer to GI-40, "Intermittent Incident" . Diagnosis Procedure INFOID:0000000006228205 1. CHECK SELF-DIAGNOSIS RESULTS Check if “U1000” is detected other than “U0401” in “Self Diagnostic Result” of “ICC/ADAS”. Is “U1000” detected? YES >> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. DAS-374, "ADAS CONTROL UNIT : DTC Logic" . NO >> GO TO 2. 2. CHECK ECM SELF-DIAGNOSIS RESULTS Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”. Is any DTC detected? YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to NO >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation" DTC (On board display) Trouble diagnosis name DTC detecting condition Possible causes U0401 (120) ECM CAN CIR1 If ADAS control unit detects an error signal ECM |