Hi,

Your IC pump may now be permanently on, but if the ECU doesn't see a load on it's ground for the IC pump, then it won't engage the SC. You wont get any DTC's, the SC just wont work. The ECU monitors the output and only engages the SC when it sees that the pump is on. Make sure that the ECU is still wired normally to the pulse module and that the relay inside the pulse module is still working (it's coil is ok). If it isn't then use the output of the ECU to provide the ground for a dummy relay. Make sure any relay you use has a diode across it's coil so that it doesn't hurt the ECU.