LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2022 >> QX60 Autograph, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System >> Ecu Diagnosis Information >> EPS Control Unit >> DTC Inspection Priority Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Inspection Priority Chart

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

Priority

Priority order item (DTC)

1

C1601-01 BATTERY VOLT

2

  • C1602-01 NO TUNING SET
  • C1604-01 TORQUE SENSOR
  • C1606-01 EPS MOTOR
  • C1607-01 EEPROM
  • C1608-01 CONTROL UNIT

3

  • C161A-82 ABS system
  • C161A-83 ABS system
  • C161A-86 ABS system
  • C161A-87 ABS system
  • C161B-82 ABS system
  • C161B-83 ABS system
  • C161B-86 ABS system
  • C161B-87 ABS system
  • C161C-82 ST angle sensor system
  • C161C-83 ST angle sensor system
  • C161C-86 ST angle sensor system
  • C161C-87 ST angle sensor system
  • C161E-82 ABS system
  • C161E-83 ABS system
  • C161E-86 ABS system
  • C161E-87 ABS system
  • C161F-86 Chassis control system
  • C161F-87 Chassis control system
  • C1620-82 Chassis control system
  • C1620-83 Chassis control system
  • C1620-86 Chassis control system
  • C1620-87 Chassis control system
  • C1621-86 BCM system
  • C1621-87 BCM system
  • C1623-86 ECM system
  • C1623-87 ECM system
  • C1629-87 IPDM E/R system
  • C1632-86 ABS system
  • C1633-86 VDC system
  • C1633-87 VDC system
  • C1634-86 ST angle sensor system
  • C1635-87 ECM system
  • C1638-86 Chassis control system
  • U2140-87 CAN comm err (ECM)
  • U2148-87 CAN comm err (brake control unit)
  • U214F-87 CAN comm err (BCM)
  • U2156-87 ST angle sensor system
  • U215B-87 CAN comm err (IPDM E/R)
  • U2176-87 CAN comm err (CCM)

4

U1010-49 CONTROL UNIT (CAN)