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EVC-300 < DTC/CIRCUIT DIAGNOSIS > P31B0, P31B4 CAN COMMUNICATION P31B0, P31B4 CAN COMMUNICATION DTC Logic INFOID:0000000010120769 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING • Turn power switch OFF and wait at least 90 seconds. CAUTION: During this period, never perform vehicle handling such as opening and closing of doors. If some kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the vehicle handling. • Make sure that 12V battery voltage is 11 V or more. >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT 1. Turn power switch ON and wait at least 10 seconds. 2. Check DTC. YES >> Proceed to EVC-300, "Diagnosis Procedure" NO >> INSPECTION END Diagnosis Procedure INFOID:0000000010120770 1. PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION Perform trouble diagnosis for CAN communication. Refer to LAN-17, "Trouble Diagnosis Flow Chart" Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace error-detected parts. 2. CHECK SELF-DIAGNOSTIC RESULT IN VCM With CONSULT Check self-diagnostic result in “EV/HEV”. YES >> GO TO 3. NO >> GO TO 4. 3. REPLACE VCM With CONSULT 1. Replace VCM. Refer to EVC-423, "Removal and Installation" . 2. Perform DTC confirmation procedure again. Refer to Is DTC P31B0 or P31B4 detected again? YES >> Replace AV control unit. Refer to AV-318, "Removal and Installation" (navigation without BOSE), AV-488, "Removal and Installation" AV-593, "Removal and Installation" (with telematics). NO >> INSPECTION END DTC CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P31B0 COMMUNICATION ERROR When VCM detects an error signal that is received from AV con- • CAN communication P31B4 |