Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
P0601, P0603, P0604, and P062F
- DTC P0601, P0602, P0603, P0604, and P062F are type A DTCs.
- The TCM commands maximum line pressure.
- The TCM forces the torque converter clutch (TCC) OFF.
- The TCM inhibits TCC engagement.
- The TCM freezes transmission adaptive functions.
- The TCM commands an immediate landing to 2nd gear.
P0602
- DTC P0601, P0602, P0603, P0604, and P062F are type A DTCs.
- The TCM commands maximum line pressure.
- The TCM forces the torque converter clutch (TCC) OFF.
- The TCM inhibits TCC engagement.
- The TCM freezes transmission adaptive functions.
- The TCM commands an immediate landing to 2nd gear.