Diff lock lights (1 Viewer)

Joined
Feb 29, 2016
Messages
99
Location
Skagit Valley, WA
I have a 1993. Lights for front and rear lockers flash when I turn the ignition key. But they do not come on at all (not even a flash) when truck is in low and i turn Diff lock button. Ideas?
 
Joined
Jul 20, 2004
Messages
24,774
Location
Chandler, AZ
 
 
With the CDL locked, motor off, key to run and the lockers selected, does anything happen? When operating the switch, do you relays click in the passenger kick panel, the actuator motors briefly run?
 

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