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1996 GMC Safari - Limp Mode

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Old 05-17-2020, 12:27 PM
  #31  
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The PCM controls the ground side of the solenoids to turn them on or off. power comes from the fuse box for all the solenoids. Ignition switch supplies power to the fuse box for this issue.
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Old 05-17-2020, 01:04 PM
  #32  
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Thank you , I'll test it tomorrow ... my wife scream on me "leave this piece of ...." , I scared and run into the house
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Old 05-17-2020, 02:36 PM
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mean time , I get an electric draw of the fuse TRANS . it need to HOT all the time . "Hot in off , run or start" . it sound OK ? cause all the guides I saw says to go run or start before the fuse test ...
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Old 05-17-2020, 02:53 PM
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It should NOT be hot with key off. Only when on.
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Old 05-17-2020, 02:59 PM
  #35  
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look at the Ignition switch ...
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Old 05-18-2020, 01:52 AM
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I did the bulb test , you totaly right .
when I connect the bulb directly to batery it works fine . And when I connect to switch power , fuse TRANS it doesn't work at all ...
so , the ignition switch need to replace ?
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Old 05-18-2020, 09:54 AM
  #37  
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Why did it take like 3 people to tell you to check for power at that fuse?
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Old 05-18-2020, 10:13 AM
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Mike , from the first beginning I measure the voltage on the TRANS fuse , It was 4V . (I mention it with the pictures post).
I did the test with voltmeter , I didn't think about the ampere ....

Sorry .




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Old 05-18-2020, 11:24 AM
  #39  
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With key on you have no power to the trans. Does this thing run? Engine? Ignition switch will not be the problem if the engine starts.
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Old 05-18-2020, 11:35 AM
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No . For now I connected the white wire to the pink wire (in switch) .
it works perfectly .
Thank you guys .... you help me alot !

(I have another issue...new thread)
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