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Home >> Nissan-Datsun >> 2004 >> Altima Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control System - 2.5L >> 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: Identifying Stop Lamp Switch
    G02884883Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
STOP LAMP SWITCH TERMINALS CONTINUITY CONDITIONS

Conditions Continuity
Brake pedal fully released Should not exist.
Brake pedal depressed Should exist.
Fig 2: Checking Continuity Between Stop Lamp Switch Terminals 1 & 2
G02884884Courtesy of NISSAN MOTOR CO., U.S.A.

If NG, adjust brake pedal installation, refer to STOPLIGHT SWITCH & AUTOMATIC SPEED CONTROL DEVICE SWITCH and perform step 2 again (Check continuity...)