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Home >> Infiniti >> 2005 >> FX35 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System - VQ35DE >> DTC P1805: Brake Switch >> Component Inspection >> Stop Lamp Switch
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Stop Lamp Switch

  1. Disconnect stop lamp switch harness connector.
    Fig 1: Disconnecting Stop Lamp Switch Harness Connector
    G02361052Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
    CONTINUITY BETWEEN TERMINALS CHART

    Conditions Continuity
    Brake pedal: Fully released Should not exist.
    Brake pedal: Slightly depressed Should exist.
    Fig 2: Checking Continuity Between Stop Lamp Switch Terminals 1 And 2
    G02361053Courtesy of NISSAN MOTOR CO., U.S.A.
  3. If NG, adjust stop lamp switch installation, Refer to "BRAKE PEDAL ", and perform step 2 again.