2016 Infiniti QX50 AWDFACTORY OEM SERVICE PROCEDURE

BCM (Body Control Module): DTCINSPECTIONPRIORITYCHART

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

Priority DTC
1 B2562: LOW VOLTAGE
2
  • U1000: CAN COMM CIRCUIT
  • U1010: CONTROL UNIT (CAN)
3
  • B2190: NATS ANTENNA AMP
  • B2191: DIFFERENCE OF KEY
  • B2192: ID DISCORD BCM-ECM
  • B2193: CHAIN OF BCM-ECM
  • B2195: ANTI SCANNING
4
  • B2553: IGNITION RELAY
  • B2555: STOP LAMP
  • B2556: PUSH-BTN IGN SW
  • B2557: VEHICLE SPEED
  • B2560: STARTER CONT RELAY
  • B2601: SHIFT POSITION
  • B2602: SHIFT POSITION
  • B2603: SHIFT POSI STATUS
  • B2604: PNP SW
  • B2605: PNP SW
  • B2608: STARTER RELAY
  • B260A: IGNITION RELAY
  • B260F: ENG STATE SIG LOST
  • B2614: ACC RELAY CIRC
  • B2615: BLOWER RELAY CIRC
  • B2616: IGN RELAY CIRC
  • B2617: STARTER RELAY CIRC
  • B2618: BCM
  • B261A: PUSH-BTN IGN SW
  • B261E: VEHICLE TYPE
  • B26EA: KEY REGISTRATION
  • C1729: VHCL SPEED SIG ERR
  • U0415: VEHICLE SPEED SIG
5
  • C1704: LOW PRESSURE FL
  • C1705: LOW PRESSURE FR
  • C1706: LOW PRESSURE RR
  • C1707: LOW PRESSURE RL
  • C1708: [NO DATA] FL
  • C1709: [NO DATA] FR
  • C1710: [NO DATA] RR
  • C1711: [NO DATA] RL
  • C1716: [PRESSDATA ERR] FL
  • C1717: [PRESSDATA ERR] FR
  • C1718: [PRESSDATA ERR] RR
  • C1719: [PRESSDATA ERR] RL
  • C1734: CONTROL UNIT
6
  • B2621: INSIDE ANTENNA
  • B2622: INSIDE ANTENNA
  • B2623: INSIDE ANTENNA
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.