2018 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE

Body Control System DTCS

BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
B11C1 SUB BATTERY
B129F ELECTRONIC STABILITY PROGRAM CONTROL UNIT
B210C BATTERY
B2121 INJECTION RELAY
B214B LATCHING: TERMINAL RELAY 30G
B214F LATCHING: TERMINAL RELAY 30G
B2159 NO-LOAD CURRENT
B215F TERMINAL RELAY 15R1
B2163 TERMINAL RELAY 15R2
B2194 POWER SUPPLY
B2195 POWER SUPPLY
B21DE SUB BATTERY RELAY
B21DF DECOUPLING RELAY
B21E6 INJECTION RELAY
B21E7 IGNITION: POWER SUPPLY
B21F5 POWER SUPPLY
B21F6 POWER SUPPLY
B21F7 POWER SUPPLY
B21F8 POWER SUPPLY
B21F9 POWER SUPPLY
B2206 VEHICLE IDENTIFICATION NUMBER
B2215 BCM
B223B BCM
B226C UPPER CONTROL PANEL CONTROL UNIT
B235A BCM
B25A6 SIGNAL ERROR
P126F STOP/START SYSTEM
U0019 COMMUNICATION ERROR
U0100 COMMUNICATION ERROR
U0121 COMMUNICATION ERROR
U0126 COMMUNICATION ERROR
U0143 COMMUNICATION ERROR
U0151 COMMUNICATION ERROR
U0155 COMMUNICATION ERROR
U0159 COMMUNICATION ERROR
U0164 COMMUNICATION ERROR
U0167 COMMUNICATION ERROR
U0168 COMMUNICATION ERROR
U0169 COMMUNICATION ERROR
U0203 COMMUNICATION ERROR
U0204 COMMUNICATION ERROR
U0213 COMMUNICATION ERROR
U0231 COMMUNICATION ERROR
U0401 COMMUNICATION ERROR
U0416 COMMUNICATION ERROR
U0427 COMMUNICATION ERROR
U0452 COMMUNICATION ERROR
U0504 COMMUNICATION ERROR
U0505 COMMUNICATION ERROR
U1008 COMMUNICATION ERROR
U1009 COMMUNICATION ERROR
U103B COMMUNICATION ERROR
U1093 COMMUNICATION ERROR
U113E COMMUNICATION ERROR
U1154 COMMUNICATION ERROR
U118A COMMUNICATION ERROR
U118B COMMUNICATION ERROR
U11A3 COMMUNICATION ERROR
U11BC COMMUNICATION ERROR
U11BF COMMUNICATION ERROR
U120B COMMUNICATION ERROR
P0579 CRUISE CONTROL LEVER
B178F COMBINATION SWITCH
B210A STEERING COLUMN CONTROL MODULE
B210B STEERING COLUMN CONTROL MODULE
B210D STEERING COLUMN CONTROL MODULE
B210E STEERING COLUMN CONTROL MODULE
B2225 STEERING COLUMN CONTROL MODULE
B2300 COMBINATION SWITCH
B2306 COMBINATION SWITCH
B2309 COMBINATION SWITCH
B2330 COMBINATION SWITCH
U0141 COMMUNICATION ERROR
U0146 COMMUNICATION ERROR
U0155 COMMUNICATION ERROR
U0168 COMMUNICATION ERROR
U1008 COMMUNICATION ERROR
U1032 COMMUNICATION ERROR
U11A3 COMMUNICATION ERROR
U1442 COMMUNICATION ERROR
Factory Service Tools

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When to See a Mechanic

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

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

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