Set Conditions
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
DTC C1238 could be set when either driven wheel estimated brake rotor temperature exceeds 700°F (375°C). If either driven wheel estimated brake rotor temperature has exceeded 375° C (700° F) during ABS or normal braking conditions, the code will not be set until the next TCS activation occurs. If both rotor estimated temperatures have cooled below 530°F (275°C) before the next TCS activation, code will not be set and TCS will not be disabled. If either driven wheel brake rotor temperatures has exceeded 700°F (375°C) during TCS then the code will be set immediately, but TCS will not be disabled until the end of the TCS event.