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Home >> Infiniti >> 2008 >> M45 x >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VK45DE) - DTCS P1550 Through P2A03 >> DTC P1568 ICC Function >> On Board Diagnosis Logic
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On Board Diagnosis Logic

This self-diagnosis has the one trip detection logic. 

The MIL will not light up for this diagnosis. 

NOTE:
  • If DTC P1568 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000, U1001. Refer to "DTC U1000, U1001 CAN COMMUNICATION LINE ".
  • If DTC P1568 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to "DTC U1010 CAN COMMUNICATION ".
  • If DTC P1568 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to "DTC P0605 ECM "
DTC DETECTING CONDITION

DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P1568
1568
ICC function ECM detects a difference between signals from ICC unit is out of specified range.
  • Harness or connectors (The CAN communication line is open or shorted.)
  • ICC sensor integrated unit
  • ECM