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Home >> Nissan-Datsun >> 1994 >> Sentra SE-R, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.0L >> Self-Diagnostic System >> Entering Self-Diagnostics >> Dual LED System
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Dual LED System

  1. Turn ignition switch to ON position. Use a screwdriver to turn ECM diagnostic mode selector fully clockwise.
  2. Wait for inspection lights to begin flashing. At this time, inspection lights will flash mode options (i.e., one flash for Mode I, 2 flashes for Mode II, etc.). As soon as inspection light flashes desired mode number (3 flashes for self-diagnostic mode), turn mode selector off (fully counterclockwise).
  3. If mode selector is kept in ON position (fully clockwise), mode selections will continuously cycle. This cycling will not erase memory.
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