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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 827 (Interior Lighting System (F250-F550)) >> Diagnostic Tests >> Interior Lighting >> Pinpoint Tests >> Pinpoint Test H: All Battery Saver Components Do Not Operate >> Pinpoint Test H: All Battery Saver Components Do Not Operate

Pinpoint Test H: All Battery Saver Components Do Not Operate

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. H1 CHECK CIRCUIT 705 (LG/OG) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: Instrument Cluster C220a
    • Measure the voltage between the instrument cluster C220a-26, circuit 705 (LG/OG) and ground.
      Fig 1: Checking Circuit 705 (LG/OG) For Open
      GF0008369Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  H2.
    2. NO  : VERIFY the central junction box (CJB) fuse 41 (10A) is OK. If OK, REPAIR the power supply circuit. TEST the system for normal operation.
  2. H2 CHECK CIRCUIT 54 (LG/YE) FOR AN OPEN 
    • Connect a fused (10A) jumper wire between the instrument cluster C220a-25, circuit 54 (LG/YE), harness side and the instrument cluster C220a-26, circuit 705 (LG/OG) harness side.
      Fig 2: Checking Circuit 54 (LG/YE) For Open
      GF0008378Courtesy of FORD MOTOR CO.
    • Do the demand lamps operate with the jumper wire connected? 
    1. YES  : Go to  H3.
    2. NO  : REPAIR circuit 54 (LG/YE). TEST the system for normal operation.
  3. H3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION 
    • Disconnect all the instrument cluster connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the instrument cluster connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    2. NO  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.