2012 Infiniti EX35 Base, AWDFACTORY OEM SERVICE PROCEDURE

Fail-Safe Control By DTC

BCM performs fail-safe control when any DTC are detected.

FAIL-SAFE CONTROL DTC INDEX

Display contents of CONSULT Fail-safe Cancellation
B2190: NATS ANTENNA AMP Inhibit engine cranking Erase DTC
B2191: DIFFERENCE OF KEY Inhibit engine cranking Erase DTC
B2192: ID DISCORD BCM-ECM Inhibit engine cranking Erase DTC
B2193: CHAIN OF BCM-ECM Inhibit engine cranking Erase DTC
B2195: ANTI SCANNING Inhibit engine cranking Ignition switch ON → OFF
B2560: STARTER CONT RELAY Inhibit engine cranking 500 ms after the following CAN signal communication status becomes consistent
  • Starter control relay signal
  • Starter relay status signal
B2608: STARTER RELAY Inhibit engine cranking 500 ms after the following signal communication status becomes consistent
  • Starter motor relay control signal
  • Starter relay status signal (CAN)
B260A: IGNITION RELAY Inhibit engine cranking 500 ms after the following conditions are fulfilled
  • IGN relay (IPDM E/R) control signal: OFF (Battery voltage)
  • Ignition ON signal (CAN to IPDM E/R): OFF (Request signal)
  • Ignition ON signal (CAN from IPDM E/R): OFF (Condition signal)
B260F: ENG STATE SIG LOST Maintains the power supply position attained at the time of DTC detection When any of the following conditions are fulfilled
  • Power position changes to ACC
  • Receives engine status signal (CAN)
B2617: STARTER RELAY CIRC Inhibit engine cranking 1 second after the starter motor relay control inside BCM becomes normal
B2618: BCM Inhibit engine cranking 1 second after the ignition relay (IPDM E/R) control inside BCM becomes normal
B261E: VEHICLE TYPE Inhibit engine cranking BCM initialization
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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.