Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
P0601, P0603, P0604, and P062F
- The high side driver is turned Off.
- The TCC is turned Off.
- The TCM request maximum line pressure.
- The ECM reduces engine torque based on transmission input speed.
- Neutral idle is inhibited.
- Tap Up/Down is inhibited.
- Tow/Haul mode is inhibited.