Problem in low speed fuel pump circuit - Power / Fuel Pump Circuits
Error Code :524 Loss of comm usually means a connector is to blame, first step would be to pull and inspect the connectors (in this case, the headlight switch and the cluster module) for damage, or a pin that has been shoved back, then reseat them. If that doesnt fix it, then the PITA job of looking over the whole harness for pinch points.
Even with the proper scanner to view stability system data, the sensor is usually operating correctly at the time of diagnosis. There isalso a service bulletin that refers to a wiring harness that may cause these codes, but most allof the time it is the sensor. The sensor is not hard to replace. Takes just 15 minutes or so.