Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » Powertrain Management » Relays and Modules - Powertrain Management » Relays and Modules - Computers and Control Systems » Technical Service Bulletins » All Technical Service Bulletins » Antitheft System - NATS Security VBC Logic  
 
 
  Antitheft System - NATS Security VBC Logic  
 

Classification: EL10-028

Reference: NTB10-106

Date: September 10, 2010

NATS SECURITY - VBC LOGIC

APPLIED VEHICLE: 2009 - 2011 All Nissan with NATS / Immobilizer System

SERVICE INFORMATION

All model year 2009 - 2011 Nissan vehicles equipped with NATS/Immobilizer system have the new VBC (Validate Before Crank) starter relay logic.

VBC (Validate Before Crank) Logic:

^ The BCM will make sure that a valid (registered) key is being used before engaging the starter relay. If the key is not authenticated the starter will not operate.

^ If the engine cranks, the issue is not related to NATS. Do not replace NATS components (BCM, I-Key, FOB Reader or RF Receiver). Refer to ASIST for further diagnostic information as needed.