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Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2138 >> DTC P1805: Brake Switch >> Component Inspection >> Stop Lamp Switch
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Stop Lamp Switch

  1. Turn ignition switch OFF.
  2. Disconnect stop lamp switch harness connector.
  3. Check continuity between stop lamp switch terminals 3 and 4 under the following conditions.
    STOP LAMP SWITCH TERMINALS CONTINUITY CONDITIONS

    Conditions Continuity
    Brake pedal: Fully released Should not exist.
    Brake pedal: Slightly depressed. Should exist.
  4. If NG, adjust stop lamp switch installation, refer to "BRAKE PEDAL ", and perform step 3 again.
    Fig 1: Checking Continuity Between Stop Lamp Switch Terminals 3 And 4
    G02369744Courtesy of NISSAN MOTOR CO., U.S.A.
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