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CCS U0401 ECM CAN 1 CCS-73 < COMPONENT DIAGNOSIS > [INTELLIGENT CRUISE CONTROL] C D E F G H I J K L M B N P A U0401 ECM CAN 1 Description INFOID:0000000001606928 ICC sensor integrated unit and ECM exchange ECM system-related signals with CAN communication. . DTC Logic INFOID:0000000001606929 DTC DETECTION LOGIC Diagnosis Procedure INFOID:0000000001606930 1. PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT 1. Perform self-diagnosis of ICC sensor integrated unit. 2. Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “ECM CAN CIR1 [U0401]” (DTC Is any DTC detected? YES >> GO TO 2. NO >> GO TO 3. 2. CAN COMMUNICATION INSPECTION Perform the CAN communication system inspection. Repair or replace the applicable item. Refer to . >> GO TO 6. 3. PERFORM SELF-DIAGNOSIS OF ECM 1. Perform self-diagnosis of ECM. 2. Check if DTC is detected. Refer to . Is any DTC detected? YES >> GO TO 4. NO >> GO TO 5. 4. REPAIR OR REPLACE APPLICABLE ITEM Repair or replace the applicable item identified by the self-diagnosis result. >> GO TO 6. 5. REPLACE ICC SENSOR INTEGRATED UNIT 1. Replace ICC sensor integrated unit. 2. Adjust laser beam aiming. Refer to CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair . >> GO TO 6. 6. CHECK ICC SYSTEM DTC No. (On board display) Trouble diagnosis name DTC detecting condition Possible cause U0401 (120) ECM CAN CIR1 When a counter value of CAN signals received ECM |