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Home >> Infiniti >> 2009 >> M35 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Body, Lock & Security System) >> Intelligent Key System/Engine Start Function >> DTC B2551: Steering Lock Unit >> Terminals And Reference Value >> Self-Diagnostic Logic
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Self-Diagnostic Logic

WARNING: This page is about a different car, the 2008 Infiniti M45 and 2008 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.
SELF-DIAGNOSTIC LOGIC

DTC Self-diagnosis name DTC detecting condition Possible causes
B2551 STEERING LOCK UNIT Though the communication between the Intelligent Key and the steering lock unit is normal, the steering lock unit condition signal is NG
  • Harness and connector (Open or shorted in the circuit between the units)
  • Steering lock unit