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Home >> Infiniti >> 2011 >> M56 x >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (Body Control System) >> System Description >> System >> Body Control System >> BODY CONTROL SYSTEM: Fail-safe >> Fail-Safe Control By DTC
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Fail-Safe Control By DTC

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

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

Display contents of CONSULT Fail-safe Cancellation
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
B2198: NATS ANTENNA AMP Inhibit engine cranking Erase DTC
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
B260F: ENG STATE SIG LOST Inhibit engine cranking When any of the following conditions are fulfilled
  • Power position changes to ACC
  • Receives engine status signal (CAN)
B26F1: IGN RELAY OFF Inhibit engine cranking When the following conditions are fulfilled
  • Ignition switch ON signal (CAN: Transmitted from BCM): ON
  • Ignition switch ON signal (CAN: Transmitted from IPDM E/R): ON
B26F2: IGN RELAY ON Inhibit engine cranking When the following conditions are fulfilled
  • Ignition switch ON signal (CAN: Transmitted from BCM): OFF
  • Ignition switch ON signal (CAN: Transmitted from IPDM E/R): OFF
B26F3: START CONT RLY ON Inhibit engine cranking When the following conditions are fulfilled
  • Starter control relay signal (CAN: Transmitted from BCM): OFF
  • Starter control relay signal (CAN: Transmitted from IPDM E/R): OFF
B26F4: START CONT RLY OFF Inhibit engine cranking When the following conditions are fulfilled
  • Starter control relay signal (CAN: Transmitted from BCM): ON
  • Starter control relay signal (CAN: Transmitted from IPDM E/R): ON
B26F7: BCM Inhibit engine cranking by Intelligent Key system When room antenna and luggage room antenna functions normally
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