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99 7.3 4x4 not working

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Old Dec 21, 2019 | 09:59 PM
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Aaron Ellsworth's Avatar
Aaron Ellsworth
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99 7.3 4x4 not working

Iv got a 99 lariat powerstroke auto trans, I know this has probably been discussed a lot but I can’t find what’s specifically going on with mine, I have no power to the 4wd selector switch on dash and my 4wd light does NOT come on when I turn the key to the ON position. I can manually ground my relays and the motor will switch the transfer case to 4x4 but I have no idea what position it is in because the light does not work. I have changed the bulbs behind the cluster, the relays, and also swapped in a parts number matching GEM module. Any help or advice to diagnose would be MUCH appreciated.
 
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Old Dec 24, 2019 | 07:38 AM
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blakeusa
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Did you check the fuses and relays under the hood by the brake booster.
 
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