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Help P1633 KAM power low

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Old Jul 6, 2011 | 06:35 PM
  #1  
fattmack's Avatar
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Help P1633 KAM power low

ok so i have a 06 xlt screw with 100,000 mi and i went to see why my CEL was on and i got a P1633 Keep Alive Power Voltage Too Low code and the mechanic had no clue what it meant. I tried searching this site and other sites to no avail does anyone have a clue whats up? TIA
 

Last edited by fattmack; Jul 6, 2011 at 06:38 PM.
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Old Jul 7, 2011 | 01:04 AM
  #2  
88racing's Avatar
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From: In the fast lane from LA to Tokyo...
Your code is caused by a lack of good connectivity between the battery and the Powertrain Control Module (PCM) ... or a failing PCM (Ouch!).

1. Check to make sure the battery cables are not corroded and tightly fastened ... both ends.

2. Look around the alternator for corroded/loose terminals.

3. Under the hood, there is a plastic covered "battery junction box"... full of relays, diodes, and fuses. Your glove box manual describes this box,

4. Unplug, lubricate and replug the PCM connections with dieltric grease. Have the battery disconnected for this one.

5. Check the powertrain electrical harness for breaks.

Good luck!
 
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