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Home >> Mercury >> 2010 >> Milan Base, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Information Center - Instrumentation, Message Center And Warning Chimes >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test I: The Tachometer Is Inoperative >> Pinpoint Test I: The Tachometer Is Inoperative

Pinpoint Test I: The Tachometer Is Inoperative

  1. I1 CARRY OUT THE TACHOMETER ACTIVE COMMAND USING THE SCAN TOOL 
    NOTE: On hybrid vehicles, verify that the IPC  display mode is set to the enlighten mode setting before beginning diagnostics.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: IPC  DataLogger.
    • Start the engine.
    • Select the IPC  tachometer (TACH_IND) active command. Command the tachometer according to the following table while monitoring the tachometer.
      NOTE: On hybrid, make sure to set the scan tool to 0 rpm before beginning this test.
      TECHOMETER REFERENCE TABLE

      Tachometer Command Gauge Position
      0% 0 rpm
      50% 3,500 rpm (non-hybrid)
      3,000 rpm (hybrid)
      100% 7,000 rpm (non-hybrid)
      6,000 rpm (hybrid)
      0% 0 rpm
    • Does the tachometer start at 0 rpm, move to 3,500 rpm, 7,000 rpm and then return to 0 rpm? 
  2. I2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST 
    • Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
    • Are any DTCs recorded? 
  3. I3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST 
    • Check for recorded DTCs from the IPC  self-test.
    • Are any DTCs recorded?