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DTC Inspection Priority Chart

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.

When multiple DTCs are detected simultaneously, check one by one depending on the following priority list.

Priority Priority order item (DTC)
1
  • U1000 CAN COMM CIRCUIT
2
  • C1601 BATTERY POWER SUPPLY
  • C1609 VEHICLE SPEED SIGNAL
  • U0428 STEERING ANGLE SENSOR MODULE
  • U14FE HPCM
  • U14FF CAN VHCL SPD METER
3
  • C1604 TORQUE SENSOR
  • C1612 FLOW CONTROL VALVE
  • C1614 POWER STEERING FLUID LEAK
4
  • C1606 EPS MOTOR
  • C1607 EEPROM
  • C1608 CONTROL UNIT
  • U1010 CONTROL UNIT(CAN)