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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1593 (Steering Column Switches) >> Diagnostic Tests >> Steering Column Switches >> Pinpoint Tests >> Pinpoint Test D: No Power in START >> Pinpoint Test D: No Power In Start

Pinpoint Test D: No Power In Start

WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.
  1. D1 CHECK CIRCUIT CDC35 (BU/WH) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: OTIS Diode
    • Disconnect: PCM C175b
    • Disconnect: Ignition Switch C250
    • Measure the resistance between ignition switch C250-7, circuit CDC35 (BU/WH), harness side and:
      • OTIS diode, circuit CDC35 (BU/WH), input side.
      • PCM C175b-9, circuit CDC35 (BU/WH), harness side.
      • Fig 1: Measuring Resistance
      GF0045948Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  D2.
    2. NO  : REPAIR circuit CDC35 (BU/WH). TEST the system for normal operation.
  2. D2 ISOLATE THE IGNITION SWITCH 
    • Key in START position.
    • Measure the resistance between ignition switch C250 pin-4, component side and ignition switch C250 pin-7, component side.
    • Is the resistance less than 5 ohms? 
    1. YES  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.
    2. NO  : INSTALL a new ignition switch. REFER to Ignition Switch . TEST the system for normal operation.
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