Solution I found to knowing which brake pressure sensor to replace if and when the time comes, clear fault code then unplug one of the sensors, ignition on and press brake pedal, read codes again, if same bank code reads then it's the other sensor, can be confirmed by reconnecting the sensor and repeating, just this time disconnect other sensor, it should then read a fault with the other bank as well, the thing to note is the code won't read until the brake pedal is pressed
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