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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0603 To P2A03 (Qr25DE) >> DTC P1805: Brake Switch >> On Board Diagnosis Logic >> Notes
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On Board Diagnosis Logic: Notes

The MIL will not illuminate for this self-diagnosis  .

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 being driven.
  • Harness or connectors (Stop lamp switch circuit is open or shorted.)
  • Stop lamp switch