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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Charging System - General Information -- F250-F550 Super Duty) >> Diagnosis And Testing >> Charging System - Dual Generators >> Pinpoint Tests >> Pinpoint Test P: Battery Leakage Or Damage

Pinpoint Test P: Battery Leakage Or Damage

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. P1 CHECK FOR ACID LEAKAGE AND DAMAGE 
    • Check for acid damage to both the battery wire harness and to the body.
    • Is acid damage present? 
    • Yes  : REPAIR the damaged areas as necessary. TEST the system for normal operation.
    • No  : GO to P2.
  2. P2 CHECK THE CHARGING SYSTEM FOR OVERCHARGING 
    • Key in START position.
    • With the engine running and all accessories off, increase the engine speed to 2,000 rpm and measure the voltage at the battery.
      Fig 1: Measuring Battery Voltage
      G03879700Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 15.5 volts? 
  3. P3 CHECK THE BATTERY MOUNTING 
    • Key in OFF position.

      Check both batteries for correct mounting in the battery trays.

    • Are the batteries correctly mounted? 
    • Yes  : GO to P4.
    • No  : REPAIR as necessary. TEST the system for normal operation.
  4. P4 CHECK FOR BATTERY CONTACT 
    • Check both batteries to make sure there are no fasteners or other parts contacting the battery case causing excess pressure.
    • Is anything contacting the battery case? 
    • Yes  : REPAIR as necessary. TEST the system for normal operation.
    • No  : GO to P5.
  5. P5 CHECK THE BATTERY CASE FOR DAMAGE 
    • Check both battery cases for damage, such as cracks or poor seals.
    • Are the batteries OK? 
  6. P6 CHECK THE BATTERY CAPACITY 
    • Check the battery capacity of both batteries. Refer to the Battery - Condition Test in BATTERY, MOUNTING AND CABLES .
    • Are the batteries OK? 
    • Yes  : The system is OK. TEST the system for normal operation.
    • No  : INSTALL a new battery. REFER to BATTERY, MOUNTING AND CABLES . TEST the system for normal operation.