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Home >> Infiniti >> 2008 >> FX35 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1212 Through P2A03 (VQ35DE) >> DTC P1805 Brake Switch >> On Board Diagnosis Logic >> Notes
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On Board Diagnosis Logic: Notes

The MIL will not light up for this self-diagnosis. 

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805
1805
Brake switch A brake switch signal is not sent to ECM for extremely long time while the vehicle is driving.
  • Harness or connectors

    (Stop lamp switch circuit is open or shorted.)

  • Stop lamp switch