2009 Infiniti EX35 Base, AWDFACTORY OEM SERVICE PROCEDURE

Fail-Safe Control By DTC

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

FAIL-SAFE REFERENCE CHART

Display contents of CONSULT Fail-safe Cancellation
B2013: ID DISCORD BCM-S/L Inhibit engine cranking Erase DTC
B2014: CHAIN OF S/L-BCM Inhibit engine cranking Erase DTC
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
B2557: VEHICLE SPEED Inhibit steering lock When normal vehicle speed signals are received from ABS actuator and electric unit (control unit) for 500 ms
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
B2601: SHIFT POSITION Inhibit steering lock 500 ms after the following signal reception status becomes consistent
  • Selector lever P position switch signal
  • P range signal (CAN)
B2602: SHIFT POSITION Inhibit steering lock 5 seconds after the following BCM recognition conditions are fulfilled
  • Ignition switch is in the ON position
  • Selector lever P position switch signal: Except P position (battery voltage)
  • Vehicle speed: 4 km/h (2.5 MPH) or more
B2603: SHIFT POSI STATUS Inhibit steering lock 500 ms after the following BCM recognition conditions are fulfilled
  • Ignition switch is in the ON position
  • Selector lever P position switch signal: Except P position (battery voltage)
  • Selector lever P/N position signal: Except P and N positions (0 V)
B2604: PNP SW Inhibit steering lock 500 ms after any of the following BCM recognition conditions are fulfilled
  • Status 1
    • Ignition switch is in the ON position
    • Selector lever P/N position signal: P and N position (battery voltage)
    • P range signal or N range signal (CAN): ON
  • Status 2
    • Ignition switch is in the ON position
    • Selector lever P/N position signal: Except P and N positions (0 V)
    • P range signal and N range signal (CAN): OFF
B2605: PNP SW Inhibit steering lock 500 ms after any of the following BCM recognition conditions are fulfilled
  • Ignition switch is in the ON position
    • Power position: IGN
    • Selector lever P/N position signal: Except P and N positions (0 V)
    • Interlock/PNP switch signal (CAN): OFF
  • Status 2
    • Ignition switch is in the ON position
    • Selector lever P/N position signal: P or N position (battery voltage)
    • PNP switch signal (CAN): ON
B2606: S/L RELAY Inhibit engine cranking 500 ms after the following CAN signal communication status becomes consistent
  • Steering lock relay signal (Request signal)
  • Steering lock relay signal (Condition signal)
B2607: S/L RELAY Inhibit engine cranking 500 ms after the following CAN signal communication status becomes consistent
  • Steering lock relay signal (Request signal)
  • Steering lock relay signal (Condition 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)
B2609: S/L STATUS
  • Inhibit engine cranking
  • Inhibit steering lock
 When the following steering lock conditions agree
  • BCM steering lock control status
  • Steering lock condition No. 1 signal status
  • Steering lock condition No. 2 signal status
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)
B2612: S/L STATUS
  • Inhibit engine cranking
  • Inhibit steering lock
 When any of the following conditions are fulfilled
  • Steering lock unit status signal (CAN) is received normally
  • The BCM steering lock control status matches the steering lock status recognized by the steering lock unit status signal (CAN from IPDM E/R)
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
B2619: BCM Inhibit engine cranking 1 second after the steering lock unit power supply output control inside BCM becomes normal
B261E: VEHICLE TYPE Inhibit engine cranking BCM initialization
B26E9: S/L STATUS
  • Inhibit engine cranking
  • Inhibit steering lock
 When BCM transmits the LOCK request signal to steering lock unit, and receives LOCK response signal from steering lock unit, the following conditions are fulfilled
  • Steering condition No. 1 signal: LOCK (0 V)
  • Steering condition No. 2 signal: LOCK (Battery voltage)
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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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