2001 Chevy Silverado Service 4WD indicator

121,000 MILES • V8 • 4WD • AUTOMATIC
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TS1968
  • MEMBER
  • 1 POST
The Service 4WD indicator came on. I put truck into 4HI and now it is stuck there. When trying to switch back to 2HI you can hear the motor buzz but it fails to switch out of 4HI. Tech2 shows DTC C0323 - transfer case lockout circuit low and DTC 0327 - Encoder circuit failed. Could the problem be in the transfer case motor or the transfer case shift control module. I already changed the switch on the dashboard.
Any info appreciated.
Sep 28, 2010 at 6:38 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Have you checked to see if there is 12 volts to the actuator on the transfer case?
Oct 1, 2010 at 1:17 AM
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