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DAS-58 < DTC/CIRCUIT DIAGNOSIS > [BSW] U0121 VDC CAN 2 U0121 VDC CAN 2 DTC Logic INFOID:0000000009940731 DTC DETECTION LOGIC NOTE: . DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Start the engine. 2. Turn the BSW system ON. 3. Perform “All DTC Reading” with CONSULT. 4. Check if the “U0121” is detected as the current malfunction in “Self Diagnostic Result” of “BSW”. Is “U0121” detected as the current malfunction? YES >> Refer to . NO >> Refer to GI-42, "Intermittent Incident" . Diagnosis Procedure INFOID:0000000009940732 1. CHECK SELF-DIAGNOSIS RESULTS Check if “U1000” is detected other than “U0121” in “Self Diagnostic Result” of “BSW”. YES >> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. DAS-53, "BSW CONTROL MODULE : DTC Logic" . NO >> GO TO 2. 2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in “Self Diagnostic Result” of “ABS”. YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to . NO >> Replace the BSW control module. Refer to DAS-84, "Removal and Installation" . DTC Trouble diagnosis name DTC detecting condition Possible causes U0121 VDC CAN CIR2 If BSW control module detects an error signal ABS actuator and electric unit (control |