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C1929 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) STC-77 < DTC/CIRCUIT DIAGNOSIS > [WITH REAR ACTIVE STEER] C D E F H I J K L M A B STC N O P C1929 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) Description INFOID:0000000005549723 The ABS actuator and electric unit (control unit) and the RAS control unit exchange signals via the CAN com- DTC Logic INFOID:0000000005549724 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: 1. DTC REPRODUCTION PROCEDURE With CONSULT-III 1. Turn the ignition switch from OFF to ON. 2. Perform “4WAS(MAIN)/RAS/HICAS” self-diagnosis. Without CONSULT-III 1. Start the engine. 2. Perform the self-diagnosis. Refer to STC-38, "Diagnosis Description" . Is DTC “C1929” or “RAS warning lamp flickering pattern:26” detected? YES >> Proceed to diagnosis procedure. Refer to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005549725 1. PERFORM SELF-DIAGNOSIS With CONSULT-III 1. Turn the ignition switch from OFF to ON. 2. Perform “4WAS(MAIN)/RAS/HICAS” self-diagnosis. Is DTC “U1000” or “U1010” detected? YES >> Check the malfunction system. NO >> GO TO 2. 2. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS With CONSULT-III Perform “ABS” self-diagnosis. Is DTC except “DTC related to a malfunction of RAS control unit” detected? YES >> Check the DTC. Refer to NO >> GO TO 3. 3. PERFORM RAS CONTROL UNIT SELF-DIAGNOSIS With CONSULT-III Perform “4WAS(MAIN)/RAS/HICAS” self-diagnosis. YES >> Check the DTC. Refer to . NO >> GO TO 4. 4. INFORMATION CHECK DTC Display items Malfunction detected condition Possible cause C1929 VDC Malfunction is detected in VDC malfunction signal that • ABS actuator and elec- tric unit (control unit) • CAN communication |