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Home >> Cadillac >> 2013 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2022 (Transfer Case - Mp 3010-NP0) >> Diagnostic Information and Procedures >> DTC C0550 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2013 GMC Yukon XL, 2013 GMC Yukon, 2013 Chevrolet Tahoe, 2013 Chevrolet Suburban, and 2013 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine running. Let the engine run for at least 1 minute.
  2. Ignition OFF for at least 30 seconds to allow for the complete shutdown of the TCCM.
  3. Ignition ON, verify that DTC C0550 is not set.
    • If DTC C0550 sets, reprogram the TCCM. If the DTC resets, replace the TCCM. Perform the ATC motor learn procedure.
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