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Keep alive memory low voltage p1633

Thread in 'Electrical - General' started by Monolith999, Jan 14, 2019.

  1. Monolith999

    Monolith999 Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    Hey guys, been awhile since I've posted last. Looking for advice. I've had the p1633 code on my dash for over a year now and it causes no issues, but I'm getting tired of staring at the engine light lol. Checked all 3 pwm and Kam fuses, all check with no resistance. So I followed the wire going from the Kam fuse to the vehicle computer, cut a small portion and tested. I was getting 7.5 ohms resistance between the ground and the 3rd wire from the bottom right of the middle connector. So I cut the wire, and ran a new one to ground. Now measures with 0 resistance as it should. But the engine light still persists, and I am out of ideas. Any suggestion would be greatly appreciated. Thanks, Aaron
     
  2. Todd Z

    Todd Z Well-Known Member 2nd Gen Owner V6 Engine V8 Engine

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    Could be a bad Dash cluster, or cluster computer....
     
  3. Monolith999

    Monolith999 Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    Do you know of any ways to test these items
     
  4. Todd Z

    Todd Z Well-Known Member 2nd Gen Owner V6 Engine V8 Engine

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    Ford scan tool only I believe..... I know my black 10 has the dash issue.... It looses the settings and MPG and trip all the time.... So I stopped using that..... Just not worth fixing in my book for me..
     
  5. Monolith999

    Monolith999 Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    Well as life has it, I may have to sell the Trac soon for something good on gas.... So if I do I'd like to have no engine lights on, people tend to be Leary about them...
     

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