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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1390 (Trailer Brake Control System) >> Diagnostic Information and Procedures >> DTC C0561 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTC U0100, U0121, U0140, or U2099 are not set.
  2. Verify that DTC C0035, C0040, C0045, C0050, OR C0131 are not set.
  3. Replace the TBCM.
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