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power locks not working

3.9K views 6 replies 5 participants last post by  simplysmn  
#1 ·
i just bought a 1993 extended cab dually cummins and the power locks don't work. ive checked the fuse and its fine. is there a relay some where or any other things to look for? thanks in advance, josh
 
#2 ·
does anything else inside not work like the done lights? see if you have any blown fusible links coming off the pigtail of the positive battery cable into the firewall


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#3 ·
Also check the wire loom as it goes from inside truck to door they Crack and Break right there real easy .or it's the lock motor very simple to replace .
 
#6 ·
Do they not work from both sides? I had this issue and it was just a bad/dirty connection on the switch. Sometimes they would work, sometimes they needed a love tap. Took them apart when I had the door panels off for new speakers. Sprayed them with contact cleaner and made sure they were seated good. No problems since
 
#7 ·
The Lock Motor's go Out Easy . More of a pain to replace because you have to pull Panel's off just to get to them.