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Posted on Sep 15, 2012
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I have a 2003 ford taurus 3.0 engine and everytime i use the ac or heat i blow a fuse and engine light comes on with p1633 code

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Rob Cabs

Rob Cabs

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  • Posted on Sep 15, 2012
Rob Cabs
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P1633 - Keep Alive Power Voltage Too LowDescription:Indicates the keep alive power (KAPWR) circuit has experienced a voltage interrupt.Possible Causes:

  • Open KAPWR circuit
  • Intermittent KAPWR
Diagnostic Aids:Loss of KAPWR to the PCM results in immediate malfunction indicator lamp (MIL) illumination and DTC P1633.Application
Key On Engine OffKey On Engine RunningContinuous MemoryAll
GO to QB1 .


QB1 CHECK THE 12-VOLT BATTERY TERMINALS

    Note: If KAPWR is interrupted to the PCM when a breakout box is installed or the battery is disconnected, DTC P0603/P1633 can be generated on the first power-up.

  • Inspect the 12-volt battery cables for loose connections and for corrosion.

Are the 12-volt battery terminal connections in good condition?
YesNoGO to QB2 .REPAIR as necessary.QB2 INSPECT THE ENGINE COMPARTMENT FOR PROPER WIRE ROUTING

  • Inspect the electronic engine control (EEC) system wiring for proper wire routing.
  • Check the wiring routing to establish if any of the electrical connectors are being stressed due to poorly routed wiring. If necessary re-route and secure the wiring.
  • Visually inspect wiring and connectors.

Is a concern present?
YesNoREPAIR as necessary.GO to QB3 .QB3 CHECK KEEP ALIVE POWER (KAPWR) TO THE PCM

  • Key in OFF position.
  • PCM connector disconnected.
  • Measure the voltage between:

    ( + ) PCM Connector, Harness Side( - ) 12 Volt Vehicle BatteryKAPWRNegative terminal
  • While observing the multimeter, grasp the EEC harness and wiggle, shake or bend a small section while working from the battery to the PCM.

Is the voltage greater than 10.5 V?
YesNoGO to QB4 .ISOLATE the fault and REPAIR as necessary.QB4 CHECK FOR A REPEAT OF THE DTC

  • PCM connector connected.
  • Clear all DTCs that may have been caused by the PCM disconnect.
  • Test drive the vehicle and allow the engine to reach normal operating temperature.
  • Carry out the PCM self-test.

Is DTC P0603 or P1633 present?
YesNoINSTALL a new PCM. REFER to Section 2, Flash Electrically Erasable Programmable Read Only Memory (EEPROM).Unable to duplicate or identify the fault at this time.


A

Anonymous

Put OBD2 P1633 into google for the answer

Only have PO Generic Codes-- the same as you should
find & print out

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5 Related Answers

Anonymous

  • 122 Answers
  • Posted on Dec 27, 2008

SOURCE: 2000 Ford Taurus-- Heater not working.

heater valve to let the coolant into the heater core is not working the heater cluster in your dash that controls the heat might be bad. it also controls the fan and air conditioner

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Anonymous

  • 1201 Answers
  • Posted on Mar 14, 2009

SOURCE: Check Engine Light Code #0136

Usually there is a p in front of the numbers like p0136. If that's what it is, it's the oxygen sensor. The one on bank #1, #2 sensor, the one down by the catalytic converter under the vehicle. replacing it should solve the problem.

Anonymous

  • 437 Answers
  • Posted on Jun 06, 2009

SOURCE: 1993 Ford Taurus brake light fuse keeps blowing

Look for a short on the LG/R wire coming out of the BOO (brake on/off) switch.

Anonymous

  • 1 Answer
  • Posted on Jul 15, 2009

SOURCE: Driver side AC on 2003 Mercedes E500 does not blow cold air.

this problem is A/c system leaking.add enough freon R134A will solve the problem .but you must check where is leaking important.

Anonymous

  • 986 Answers
  • Posted on Oct 24, 2009

SOURCE: 2003 ford taurus idle problems had trouble codes

A code P0174 may mean that one or more of the following has happened:

  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor. and your solutions are.
    • In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner . Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
    • Inspect all vacuum and PCV hoses, replace if necessary
    • Check for a dirty fuel filter and proper fuel pressure

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2002 Ford Taurus P1633 Code
check battery and alternator and connections ------this code goes pops when battery disconnected [ from starter replacement? ] https://autoservicecosts.com/obd2-codes/p1633/
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2001 ford Taurus code P1633 what does it mean and how do I fix it ?
P1633 - Keep Alive Power Voltage Too Low

Indicates that the Keep Alive Power (KAPWR) circuit has experienced a power interrupt.

Possible causes:
-Open KAPWR circuit.
-Damaged PCM.
-Intermittent KAPWR Circuit.

First thing would be to check the fuse associated with the KAP. In your case, that would be fuse #22 (10A). If you're A/C doesn't work, then that's why. Usually the A/C clutch causes the fuse to blow and your get your P1633 code.

If the fuse is fine and the A/C works, then it might be a bad PCM. If the battery was bad before it might have set this code. Have you tried clearing the codes to see if it comes back or not?
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P1633
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Whats the p1633 code?
Possible causes - Open Keep Alive Power (KAPWR) circuit - Faulty Powertrain Control Module (PCM)

Read more: http://www.engine-codes.com/p1633.html
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05 taurus code p1633 stalls at idle or when slowing down
The KAM circuit for the PCM and the a/c is on the same circuit.
If the PCM does not have memory voltage it will loose the settings every time you turn the key off.
You might want to check the fuses in the engine compartment for a blown fuse for this circuit.
Of course it could have another problem too, such as a faulty idle air control valve.
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Code p1633 keeps coming up on check engine light how to fix it
CODE P1633 - PCM KEEP MEMORY VOLTAGE TOO LOW. WHEN YOU SEE THIS CODE THE PCM HAS DETECTED THAT THE KEEP ALIVE MEMORY POWER CIRCUIT TO THE BATTERY WAS INTERRUPTED.
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Sep 04, 2011 • 2005 Ford Taurus
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I have a 2004 Ford Taurus. About a week ago, the A/C clutch started making noise. I disconnected the plug, as I can not afford a new compressor, at this time. Two days later, the "Check...
The P0511 code is for the idle air control circuit and the P1633 is stating the the KAM voltage is too low. My guess is if you are having issues with the Idle air control circuit this could cause stalling, especially if the valve is not functioning properly and allowing too much air at idle, this causing the car to stall. I can't imagine that by pulling the connector on the A/C compressor you would get either of these codes. Have you checked for corrosion on the battery or proper battery voltage level? Here is a forum that may be of some help for trouble areas to look for (regarding P1633): http://www.taurusclub.com/forum/82-maintenance-repair/132098-trouble-code-p1633-kam-too-low.html
As far as P0511 goes if you notice any hooting type noise that is a sure indicator of a faulty IAC valve, if not then I would say first check that you do have proper output from your battery/alternator and then either take it to get properly diagnosed or try to check the circuit yourself.
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Apr 12, 2011 • 2004 Ford Taurus
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2001 for tarous code p1633 what does that mean
P1633 means KAM (keep alive memory) power is low. The power that goes to the vehicles computer to hold its memory when the key is off has lost its power. I would start by checking fuses in the fuse panel in the engine compartment(near the radiator support). If the fuses are all good then I would test for power at the computer connector which is also in the engine compartment behind the engine. I don't have the pin number or wire color at the moment (I apologize) since the Ford website is down at the moment. I have repaired this problem in the past by installing another power wire to feed the circuit essentially bypassing the original circuit.
Hope this helps
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