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Before confirming DTC, do not disconnect connector from Immobilizer Control Module, battery cable from battery, ground wire harness or main fuse. Such disconnection will erase DTC stored in Immobilizer Control Module.
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DTC stored in Immobilizer Control Module memory can be cleared as well as checked by using SUZUKI scan tool. Before using SUZUKI scan tool, read its Operator’s Manual carefully to known what functions are available and how to use it.
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Be sure to read
Precautions for Electrical Circuit Service
before inspection and observe what is written there.
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The data of immobilizer control system is registered with ECM. The data cannot be reprogrammed and is peculiar to each vehicle. Therefore check for immobilizer control system using the known-good ECM equipped with another vehicle cannot be performed.