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DTC Inspection Priority Chart

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.

Priority Detected items (DTC)
1
  • U1000 CAN COMM CIRCUIT(1)
  • U1002 SYSTEM COMM (CAN)(1)
  • U1010 CONTROL UNIT (CAN)(1)
2
  • C1671 ACT ADJ NOT PRFRM
  • C1672 INCOMP ACTUATR ADJ
3
  • C1631 CONTROL UNIT
  • C1632 CONTROL UNIT
4
  • C1651 IGN POWER SUPPLY
  • C1652 MOTOR POWER SUPPLY
  • C1654 ACTUATOR RELAY
  • C1655 PRE-DRIVER
5
  • C1621 ACTUATOR
  • C1622 ACTUATOR
  • C1627 ACTUATOR
  • C1628 ACTUATOR
  • C1661 LOCK SOLENOID
  • C1667 LOCK INSERTION
  • C1668 LOCK HLD GAP DETCT
  • C1669 INCOMP LOCK RELEAS
6
  • C1684 4WAS MAIN ECU COMM
  • C1685 4WAS MAIN ECU COMM
  • C1686 4WAS MAIN ECU
7
  • C1633 CONTROL UNIT
(1) 4WAS communication
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