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Home >> Ford >> 1989 >> Taurus SHO >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Panel - Electronic >> Testing & Diagnosis >> Fuel Computer/System Scanner Module Self-Test >> Self-Test Mode

Self-Test Mode

  1. Enter self-test mode. Top part of display should show "000 or 00.0" (zeros). Press "FUEL ECON" button to check computer. Fuel computer portion of display should show software revision level and test number.
  2. Press "FUEL ECON" button to go through test 2 through 11. A tone and a "P" or "NORMAL" on display indicates tests have passed. On vehicles with new graphic software, test 5 does not exist (no display is shown).
  3. Press "FUEL ECON" button to go to test 12. Display test (test 12) shows 12 different test functions. Make sure module displays illustrations shown. See FUEL COMPUTER/SYSTEM SCANNER MODULE SELF-TEST DISPLAYS.
  4. Press "FUEL ECON" button to exit test. Self-test passes if display module goes off, comes on and then returns to a normal display.
Fig 1: Fuel Computer/Sys Scanner Module Self-Test Displays (1 of 4)
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Fig 2: Fuel Computer/Sys Scanner Module Self-Test Displays (2 of 4)
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Fig 3: Fuel Computer/Sys Scanner Module Self-Test Displays (3 of 4)
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Fig 4: Fuel Computer/Sys Scanner Module Self-Test Displays (4 of 4)
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