2013 Infiniti M35hFACTORY OEM SERVICE PROCEDURE

Fail Safe (Driver Side)

When a system malfunction is detected, deactivates a part of the system or all functions depending on the malfunctioning part.

When the malfunction condition recovers to the normal condition, the system returns to the normal operation.

Display contents of CONSULT Fail-safe
B2451: SEAT BLT MTR DR CIRC Fully deactivates the whole operation.
B2452: SEAT BLT MTR AS CIRC Deactivates a part of comfort function.
B2454: SEAT BLT PWR DR CIRC Fully deactivates the whole operation.
B2455: CONTROL UNIT DR Stops the operation in the conditions as per the following. (1)
  • During emergency brake operation
  • When ABS continuously operates
  • When lateral slippage during cornering occurs
  • When Intelligent brake assistance operates
  • When steering wheel is rotated for emergency
  • A part or the whole comfort function
B2456: SEAT BLT PWR AS Deactivates a part of comfort function.
B2457: CONTROL UNIT AS Deactivates a part of comfort function.
B2458: LOCAL COMM Deactivates a part of comfort function.
B2461: VHCL SPEED SIGNAL Stops the operation in the conditions as per the following.
  • During emergency brake operation
  • When ABS continuously operates
  • When lateral slippage during cornering occurs
  • When steering wheel is rotated for emergency
  • When comfort function operates
B2466: DR/AS CONTROL UNIT Deactivates a part of comfort function.
B2470: SYS HEAT PROTC DR
  • Fully deactivates the whole operation.
  • Operation return

  • 1 time operation becomes possible after approximately 30 seconds
  • Returns to the initial condition after approximately 8 minutes
B2472: BRAKE STROKE SENSOR Stops the operation in the conditions as per the following.
  • During emergency brake operation
  • When ABS continuously operates
  • A part of comfort function
U0126: STRG ANG SEN SIG Stops the operation in the conditions as per the following.
  • When lateral slippage during cornering occurs
  • When steering wheel is rotated for emergency
  • A part of comfort function
U0428: STRG ANGL CAL Stops the operation in the conditions as per the following.
  • When lateral slippage during cornering occurs
  • When steering wheel is rotated for emergency
  • A part of comfort function
U1000: CAN communication circuit Stops the operation in the conditions as per the following. (1)
  • During emergency brake operation
  • When ABS continuously operates
  • When lateral slippage during cornering occurs
  • When Intelligent brake assistance operates
  • When steering wheel is rotated for emergency
  • A part or the whole comfort function
(1) The deactivation mode differs depending on the internal malfunctioning condition of control unit
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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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