99 Tahoe power locks

[christina]

The front power locks on my 99 tahoe don't work they only work manually.. recently the door handle on my passenger door stopped opening so I decided since I had to change that I would make an attempt at the lock actuator. My lock still won't work tho and it seems that it doesn't work manually now either.. any ideas? Windows, seats, cigarette lighter, barn doors and back doors all work fine.. I hope to resolve this while the door panel is off

 

[SunlitComet]

check the cig lighter/aux power fuse and make sure the associated circuit breaker is working as well. it powers the power seats.

 

[christina]

check the cig lighter/aux power fuse and make sure the associated circuit breaker is working as well. it powers the power seats.

Power seats windows and back doors all work fine

 

[jerryjoe28]

did you try to power them with test leads?

 

[SunlitComet]

if back doors work then it is a lock jamming up or the wires to the fronts are bad.

 

[SunlitComet]

also means the fuse is good as well.

 

[jerryjoe28]

good point @SunlitComet ..... I would try cleaning and greasing all the moving parts as well

 

[christina]

When I went out to put the door panel on this am the lock had started working but after putting the panel on it stopped again. I can only assume it's hitting something. I'll try pulling the panel off again next weekend

 

[SunlitComet]

re-seat its wire connector as well for good measure.