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Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis >> External Pages >> Different car >> Section 640 (Security Control System) >> Component Diagnosis >> B2603 Shift Position Status >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • If DTC B2603 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to "DTC LOGIC ".
  • If DTC B2603 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to "DTC LOGIC ".
DTC DETECTION LOGIC CHART

DTC Self-diagnosis name DTC detecting condition Possible causes
B2603 SHIFT POSITION STATUS BCM detects the followings status for 500 ms or more when shift is in P position and, ignition switch is in ON position.
  • Park/neutral position (PNP) switch: approx. 0V
  • CVT device: approx 0V
  • Harness or connector

    (CVT device circuit is open or shorted.)

  • Harness or connectors [Park/neutral position (PNP) switch circuit is open or shorted.]
  • CVT device
  • Park/neutral position (PNP) switch
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