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resistance, and shorts to voltage by following the below listed steps. 1. With the ignition off disconnect connector X3 from the transfer case control module, and also disconnect the connector at the transfer case actuator. With a DMM check the motor A control and motor B control circuits for an open, 2. Connect X3 at the transfer case control module and turn on the ignition. 3. Check to motor A control and motor B control circuits for a short to voltage. If the circuits shows to indication of a short to voltage go to component testing. Component Testing 1. Turn the ignition off and check the motor windings for an internal short to ground inside the motor by probing either the motor A control pin and taking the other lead to ground, or the If the DMM indicates and short to ground replace the transfer case actuator. If nothing 2. With a DMM check the resistance of the motor windings by probing pin A and pin D on the transfer case actuator. The DMM should indicate 0.3-40 ohms, if it does not replace the transfer case actuator Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Control Module References for TCSCM replacement, setup, and programming Transfer Case High/Low Clutch Reset Transfer Case Two/Four Wheel Drive Actuator Replacement DTC C0379 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Transfer Case - MP 1625/1626-NQF - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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