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B2193, P1612 CHAIN OF ECM-IMMU SEC-45 < COMPONENT DIAGNOSIS > [INTELLIGENT KEY SYSTEM] C D E F G H I J L M A B SEC N O P B2193, P1612 CHAIN OF ECM-IMMU Description INFOID:0000000004215993 BCM performs the ID verification with hybrid vehicle control ECU that allows the hybrid system to start. Start the hybrid system if the ID is OK. Hybrid vehicle control ECU prevents the hybrid system from starting if the ID is not registered. BCM starts the communication with hybrid vehicle control ECU if ignition switch is turned ON. DTC Logic INFOID:0000000004215994 DTC DETECTION LOGIC NOTE: • If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to • If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON under the following conditions. - ECVT selector lever is in the P or N position. - Do not depress brake pedal. 2. Check “Self diagnostic result” with CONSULT-III. YES >> Refer to NO >> Inspection End. Diagnosis Procedure INFOID:0000000004215995 1. REPLACE BCM 1. Replace BCM. Refer to BCS-87, "Removal and Installation" . 2. Perform initialization with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual”. Does the hybrid system start? YES >> BCM is malfunctioning. • Replace BCM. Refer to BCS-87, "Removal and Installation" . • Perform initialization again and delete the DTC of hybrid vehicle control ECU. NO >> Hybrid vehicle control ECU is malfunctioning. • Replace hybrid vehicle control ECU. • Perform re-communicating function. DTC No. Trouble diagnosis name DTC detecting condition Possible cause B2193 CHAIN OF ECM- Inactive communication between hybrid vehicle • Harness or connectors (The CAN communication line is • BCM P1612 |