Author Topic: 1985 C10 power lock not working on drivers side  (Read 1894 times)

Offline crsmith56

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1985 C10 power lock not working on drivers side
« on: May 29, 2023, 12:43:25 PM »
First time posting. My 85 C10 has always had the issue of power locks not working on driver side. However, the switch on the driver side will lock and unlock the passenger side. The passenger side only operates passenger side. I replaced the actuator on driver side and no luck. My suspicion is broken wire going into the cab through the rubber sleeve? 

Offline bd

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Re: 1985 C10 power lock not working on drivers side
« Reply #1 on: May 31, 2023, 05:01:47 PM »
Welcome to the Forum!

Power Locks

Use the diagrams linked above along with a test light to determine whether power reaches the left door lock actuator motor from the driver's side switch as the switch is deflected up and down.  The tan and gray wires in the two-wire connector attached to the actuator motor should alternately receive 12 volts depending on whether the switch is deflected toward lock or unlock.  Post your results.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Scott91370

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Re: 1985 C10 power lock not working on drivers side
« Reply #2 on: June 02, 2023, 02:55:12 PM »
Nevermind...