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SEC-142 < COMPONENT DIAGNOSIS > [WITHOUT INTELLIGENT KEY SYSTEM] B2193, P1612 CHAIN OF ECM-IMMU B2193, P1612 CHAIN OF ECM-IMMU Description INFOID:0000000003938534 BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with DTC Logic INFOID:0000000003938535 DTC DETECTION LOGIC NOTE: • 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. 2. Check “Self diagnostic result” with CONSULT-III. Is DTC detected? YES >> Refer to SEC-142, "Diagnosis Procedure" NO >> Inspection End. Diagnosis Procedure INFOID:0000000003938536 1. REPLACE BCM 1. Replace BCM. Refer to BCS-59, "Removal and Installation" . 2. Perform initialization with CONSULT-III. Does the engine start? YES >> BCM was malfunctioning. NO >> ECM is malfunctioning. • Replace ECM. DTC No. Trouble diagnosis name DTC detecting condition Possible cause B2193 CHAIN OF BCM- Inactive communication between ECM and BCM • Harness or connectors (The CAN communication line is • BCM P1612 2009 Pathfinder |