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.
P0722
- DTC P0722 is a Type A DTC.
- The TCM turns Off the TCC.
- The TCM commands maximum line pressure.
- The ECM reduces engine torque based on input speed.
- The TCM inhibits Tap up/Down function.
- The TCM inhibits manual shifting of all forward gears.
- The TCM commands neutral gear if the output speed sensor signal is 1, 350 RPM or greater.
- The TCM commands 2nd gear if the output speed sensor signal is less than 1, 350 RPM.
P0723
- DTC P0723 is a Type A DTC.
- The high side driver is turned OFF.
- The TCM inhibits TCC.
- The TCM commands maximum line pressure.
- The ECM reduces engine torque based on the signal from the input speed sensor signal.
- The TCM inhibits neutral idle.
- The TCM inhibits Tap up/Down function.
- The TCM inhibits manual shifting.