The Service ABS/Active Handling/Traction Control message and lights came popped up on my 02 vert today. Pulled the code but can't seem to erase it like other codes. What am I doing wrong?

 

The Dynamic Rear Proportioning (DRP) is a control system that replaces the hydraulic proportioning function of the mechanical proportioning valve in the base brake system. The DRP control system is part of the operating software in the EBCM. The DRIP uses active control with the existing ABS in order to regulate the vehicle's rear brake pressure.

Conditions for Running the DTC
One or more faults have been detected by the EBCM in the ABS/TCS systems.

Conditions for Setting the DTC
One of the following conditions exits:
DTC C1236 sets and ignition voltage is less than 8.5 volts.
DTC C1254 or C1255 sets.
DTCs C1265 and C1267 set.
Two wheel speed sensor DTCs on the same axle set.
Action Taken When the DTC Sets
The EBCM disables the DRP for the duration of the ignition cycle.
The red Brake warning indicator turns ON.
Conditions for Clearing the DTC
The condition for the DTC is no longer present (the DTC is not current) and you used the scan tool Clear DTC function.
The condition for the DTC is no longer present (the DTC is not current) and you used the On-Board Diagnostics Clear DTC function.
The EBCM automatically clears the history DTC; when a current DTC is not detected in 100 consecutive drive cycles.
Diagnostic Aids
Use this DTC in order to differentiate which of the following conditions is present:
The EBCM turned ON the red Brake warning indicator.
The instrument cluster turned ON the red Brake warning indicator due to low brake fluid in the master cylinder reservoir.
The instrument cluster turned ON the red Brake warning indicator due to the application of the park brake.
Diagnose any other ABS DTCs that set along with this DTC.