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mechanical condition. 3: This step determines if the differential lock high control circuit is shorted to power and if 4: This step indicates the transfer case shift control module needs replaced. 5: This step checks for the possibility of the rear differential mechanically binding causing it Electronic Rear Differential Lock Will Not Disengage Step Action Yes No Schematic Reference: Differential Lock Schematics 1 Did you perform the Diagnostic System Go to Step 2 Go to 2 Disconnect the rear differential lock harness Go to Step 3 Go to Step 5 3 Check the rear differential lock high control Go to Step 6 Go to Step 4 4 Replace the transfer case shift control module. Go to Step 6 - 5 Replace the electronic locking differential Go to Step 6 - 1. Use the scan tool in order to clear the DTCs.
2007 Hummer H3 2007 Driveline/Axle Rear Drive Axle - H3
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