Gm Oil Pressure Switch Wiring Diagram. The load is the component your applying power to electric fuel pump the source is a cable from a 12v batery grounds are placed as close to the component relay fuel pump as possible wthin reason the signal in your case will be the ignition wire coming from the ignition switch it will connect to one side of the oil pressure switch the other side of the switch will. Posted 03 28 2012 0612 pm.
8 remove the large electrical connector on the back of the instrument panel by squeezing the lock. As oil pressure builds during cranking the oil pressure switch contacts close and complete the circuit to ground. The load is the component your applying power to electric fuel pump the source is a cable from a 12v batery grounds are placed as close to the component relay fuel pump as possible wthin reason the signal in your case will be the ignition wire coming from the ignition switch it will connect to one side of the oil pressure switch the other side of the switch will.
The oil pressure sensor is located on the top of the motor drivers side at the rear.
Place the positive probe against the terminal and the negative probe against the body. Place the positive probe against the terminal and the negative probe against the body. Oil pressure switch wiring diagram. On your 2004 silverado the oil pressure sensor and the oil level switch have nothing to do with the fuel pump.