Question about 2002 Ford F150 Regular Cab

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Trouble code What does the code P1633 mean on a 2002 ford f150

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  • dale25healey Dec 20, 2008

    i have a ford galaxy 2001 2.3 ghia showing code p1633, all electrics working fine but car has missfire. i have changed plugs + leads + voltage sensor + battery life and connections are good but problem still persists, can anyone help me please.

  • Anonymous Mar 24, 2014

    p1633 code came up during inspection, and they also said that my check engine light does not work. Need a solution, please help,

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Please add the engine size in order to answer your question

Posted on Jun 03, 2008

My code book shows this as - keep alive power voltage too low - hope this helps

Posted on Aug 03, 2008

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What to check for code 1633 2004 Taurus 3.0 engine code p1633


code P1633 refers to the PCM's(engine computer's) memory power being low, which is likely due to fuse 22 being blown. Fuse 22 provides power to the PCM as well as the A/C clutch relay, on the pink/light blue wire. I would suggest tracing the pink/light blue wire from the fusebox to the PCM to see if it is shafed of rubbed through, but most likely it is due to a failed A/C compressor clutch, to verify this you can also start by unplugging the A/C compressor and re-drive the vehicle to see if this corrects the concern. FYI it is very common for compressors to seize on these vehicles causing the fuse to blow once the compressor is turned on, let it be with the heater in A/C mode OR defrost mode


Read more: http://www.justanswer.com/ford/36p6c-trouble-code-1633-2002-ford-taurus.html#ixzz3XydIePYb

Apr 21, 2015 | 2004 Ford Taurus

1 Answer

My 1999 ford f150 has amiss fire and the p1633 code came up but the service engine light is not on


P1633 means the battery was disconnected or became discharged enough to be unable to keep the battery-backed memory in the control module alive.

If the alternator is failing intermittently, it may not always keep the battery charged enough to properly run the engine, which could cause misfires. Ensure the battery and its terminal connections are in good shape.

I am trying to connect the two facts you listed. Your facts may not be enough to find the actual cause of the misfire, however. Certainly a disconnected or otherwise discharged battery will cause the P1633 code.

Feb 11, 2015 | Ford Cars & Trucks

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What the P1633 code for ford explorer xlt


Ford code P1633 means: Keep Alive Power Voltage Too Low

Feb 04, 2012 | Cars & Trucks

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I have 2005 crown vic it putting out a code p1633


I am going to insert an Article with test procedures and it will tell you how to correct the problem.
The Code p1633 means "Keep alive power voltage too low". If you type in the captioned sentence in the Browser search box, it will pull up an Article from JustAnswer.com/Ford/18g5e-p1633 and so on. Use that site and the repair will be explained. Our pasting ability does not allow for different Formats to fit our S2008-06-02_220239_1.pngolution screen.


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1 Answer

It has a cheek enigen on and give the code P1633


When the Taurus PCM (Powertrain Control Module)(aka "the car's computer"), sees 9V DC (or less),
it sets the code P1633, so it means your battery's voltage was low recently. But since the computer
retains the code until it is reset, the battery voltage may be OK now. This is typical for cars
that have sat for awhile, and the tiny current drain of the clock slowly drains the battery until
the voltage drops below 9 Volts. Normal car Battery voltage is 12 Volts.
Fix: check the battery (with a DMM (digital multimeter)), and reset the code (with a code reader).
Workaround: have Advance/Autozone/PepBoys check the battery (free) and ignore the code.

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2002 Chevy trailblazer was put on machine and had codes U1041-P1633 and P0014 stored in ECM What does this mean?


2002 Chevy trailblazer was put on machine and had codes U1041-P1633 and P0014 stored in ECM What does this mean

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2002 Taurus: 2002 taurus has p1633 code. what does it mean...


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

May 18, 2010 | 2002 Ford Taurus

1 Answer

04 f150 code p1633


I looked up the code you posted, and came back as kam (keep alive memory).It's a series of battery powered memory locations in the computor which allows it to store input failures identified during normal operation for use in later diagnostic routines.KAM even adopts some calibration parameters to compensate for changes in the vehicle system The only way that I know of to fix it is replace the computor, but have it checked out first. Hope this helped.

Mar 10, 2009 | 2004 Ford F150

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