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Infiniti
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2012
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QX56 AWD
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Repair and Diagnosis
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Transmission
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Automatic Transaxle
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DTC/Circuit Diagnosis
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DTC U1000: Can Comm Circuit
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DTC Logic
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DTC Detection Logic
DTC Detection Logic
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
U1000
CAN Communication Line
TCM is not transmitting or receiving CAN communication signal for 2 seconds or more:
Harness or connectors (CAN communication line is open or shorted.)
TCM