Locks 2001 blazer
Like Cimmerian stated, it you may have to reprogram the fob. Sometimes the system "forgets" things when something is replaced. If that isn't the issue then if you could provide a little more information. When using the fob, does it lock the driver's door? Does the button inside work to lock the door? Why did you replace the driver's lock controls and did the passenger side work before that? If it did not work before replacing the controls, then I would start with checking the voltage at the lock when trying to lock the door and work your way back. If nothing is found I would check for a break in the connection. Using general knowledge and not looking at my service manual at the moment, I can tell you that usually the passenger side runs with the driver's side and sometimes the driver's side controller could have an affect on the passenger side. So power down the system and find the wire that leads to the passenger side and put a multimeter to check the OHMs on the wire from the driver's to passenger side. If all of the connections are good and the voltage is there, then you have a bad passenger side control. If you find that there is no connectivity then you will have to track down the break. If all connections are good but you don't have any voltage going to the system, you may be looking at a module that has gone bad.
If you let me know what you find I will try my best to help narrow down the cause.
If you let me know what you find I will try my best to help narrow down the cause.
Last edited by YoureATowel; Oct 2, 2020 at 02:44 PM.
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