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Suzuki Truck
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2009
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Grand Vitara 2WD L4-2.4L
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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U Code Charts
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U0121
U0121
DTC U0121
Refer to CAN DTC (Lost Communication and Communication Bus Off) Table.
CAN DTC (Lost Communication and Communication Bus OFF) Table