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Kizashi Base, Standard Trans
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Section 79 (Body Electrical Control System)
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Diagnostic Information and Procedures
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DTC B1120/B1901/B1902: BCM Internal Defect/Internal Control Module Memory Check Sum Error/Control Module Programming Error
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DTC Confirmation Procedure
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DTC Confirmation Procedure
WARNING:
This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.
Push engine switch to change ignition mode to "ON".