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LaCrosse CXS
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Repair and Diagnosis
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Body & Frame
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Keyless Entry System And Remote Functions
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Diagnostic Information and Procedures
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DTC B3121
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Circuit/System Verification
Circuit/System Verification
Verify DTC B3122, B3123, or B3124 is not set.
If any of the DTCs are set, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
.