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.
P2723
- DTC P2723 is a Type A DTC.
- The TCM commands maximum line pressure.
- The TCM inhibits Tow/Haul mode.
- The TCM freezes transmission adaptive functions.
- The TCM inhibits TAP Up/Down function.
- The TCM inhibits Manual Up/Down Shift with the shift selector.
- The TCM inhibits powertrain braking.
- The ECM/TCM request a reduced amount of engine torque based on transmission input speed.
- The TCM inhibits neutral idle.
- The TCM inhibits auto grade braking.
- The TCM limits the transmission to Reverse gear and 5th gear operation.
P2724
- DTC P2724 is a Type A DTC.
- The TCM commands maximum line pressure.
- The TCM freezes transmission adaptive functions.
- The TCM inhibits TAP Up/Down function.
- The TCM inhibits Manual Up/Down Shift with the shift selector.
- The TCM inhibits powertrain braking.
- The TCM inhibits neutral idle.
- The TCM inhibits auto grade braking.
- The TCM inhibits Tow/Haul function.
- The TCM limits the transmission to 4th gear if the output speed sensor signal is 1, 400 RPM or greater.
- The TCM limits the transmission to 2nd gear if the output speed sensor signal is less than 1, 400 RPM. No upshift will occur.