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Security Control System (Without Intelligent Key System) (DTC/Circuit Diagnosis)
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DTC/Circuit Diagnosis
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DTC B2193, P1612: Chain Of ECM-IMMU
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DTC Logic
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DTC Detection Logic
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DTC Detection Logic
NOTE:
If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
DTC LOGIC
.
If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
DTC LOGIC
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2193
CHAIN OF BCM-ECM
Inactive communication between ECM and BCM
Harness or connectors
(The CAN communication line is open or short)
BCM
ECM
P1612