Question about 2002 Ford Taurus
Have a check engine light that comes on randomly,,code was p1633 keep alive power voltage too low
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Posted on Jan 02, 2017
The code is for ( Keep Alive Power Voltage To Low ) Description: is the KAPWR has experienced a power interrupt. Possible problems: Open KAPWR circuit... Damaged PCM ...or a intermittent KAPWR circuit
Posted on May 29, 2010
SOURCE: i have code p1633 keep
I ahve gathered this information from the web...This can be an inexpensive or expensive problem!
Suspect the battery is chronically low; not accepting a charge and needs to be replaced.
The power cables from the battery may be corroded. These should be removed cleaned and retightened.
Check the wiring harness and connections to the Power Train Control Module. Use a contact cleaner/ lubricant and a brush to clean these connections then reseat them firmly. Also make sure there are no chipped or frayed wires as it travels through the engine compartment.
Check all the fuses and other components in the fuse box and the battery junction box to make sure they are in place firmly seated; fuses are good and clean from any corrosion on the clips. The location of these boxes is in your owners manual.
Alas it may be the PCM itself. That should be replaced by a mechanic.
Hope that helps
Posted on Mar 08, 2011
SOURCE: Could a bad PCM be intermittant before completely going out or could the fuel pump be bad causing the low voltage to the PCM and consequently causing a sensor to keep fuel from flowing to the engine?
THE FUEL PUMP COULD BE GOING BAD NOT PUTTING ENOUGH FUEL PRESSURE TO THE MOTOR AND THE FUEL PUMP RELAY COULD BE BAD
Posted on Nov 30, 2012
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