Action Taken When the DTC Sets: P0877
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.
- The TCM requests the engine control module (ECM) to illuminate the malfunction indicator lamp (MIL).
- The transmission will either lock to neutral or the transmission will shift to 3rd or 5th range.
- While diagnostic response is active, if shift selector is moved to neutral, the transmission will shift to neutral. If the selector moved to reverse (R), the transmission will shift to REVERSE. If the shift selector is moved to a forward range or reverse and transmission is compromised by over-speeding or direction change, transmission shifts to neutral. If the transmission was locked to neutral, transmission will stay in neutral in any selector position.
- DTC P0877 is stored in TCM history.
- The TCM freezes shift adapts.
- The TCM inhibits torque converter clutch (TCC) engagement.