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Home >> Infiniti >> 2010 >> G37 Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Security Control System) >> With Intelligent Key System >> DTC/Circuit Diagnosis >> DTC B2603: Shift Position >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2011 Nissan Juke. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • If DTC B2603 is displayed with DTC B2601, first perform the trouble diagnosis for DTC B2601. Refer to , "DTC LOGIC ".
DTC DETECTION LOGIC CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible causes
B2603 SHIFT POSI STATUS BCM detects the following status when ignition switch is in the ON position.
  • Transmission range switch signal: approx. 0 V
  • CVT shift selector (detention switch) signal: approx. 0 V
  • Harness or connector [CVT shift selector (detention switch) circuit is open or shorted.]
  • Harness or connectors (Transmission range switch circuit is open or shorted.)
  • CVT shift selector (detention switch)
  • Transmission range switch
  • BCM