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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1184 (Steering Column Switches) >> Diagnostic Tests >> Steering Column Switches >> Pinpoint Tests >> Pinpoint Test A: No Power In All Ignition Switch Positions >> Pinpoint Test A: No Power In All Ignition Switch Positions

Pinpoint Test A: No Power In All Ignition Switch Positions

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.
  1. A1 CHECK FOR VOLTAGE AT SJB FUSE 27 (20A) 
    • Key in OFF position.
    • Disconnect: SJB Fuse 27 (20A)
    • Measure the voltage between SJB fuse 27, input side and ground.
      • Fig 1: Checking Circuit For Voltage
      GF0023049Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A2.
    2. NO  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation.
  2. A2 CHECK FOR VOLTAGE ON CIRCUIT SBP27 (BU/RD) 
    • Connect: SJB fuse 27 (20A)
    • Disconnect: Ignition Switch C250
    • Measure the voltage between ignition switch C250-4, circuit SBP27 (BU/RD), harness side and ground.
      • Fig 2: Checking Circuit For Voltage
      GF0025614Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new ignition switch. REFER to Ignition Switch . TEST the system for normal operation.
    2. NO  : VERIFY SJB fuse 27 (20A) is OK. If OK, REPAIR circuit SBP27 (BU/RD). TEST the system for normal operation.
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