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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 813 (Power Take-Off) >> Diagnostic Information And Procedures >> DTC P253D >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Engine On, Press The PTO Switch To Engage PTO. The Engine RPM Should Increase To The Default Engine Speed Within A Few Seconds. Press Res + To Increase The Engine Speed And Set - To Decrease The Engine Speed Accordingly.

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