RESISTOR JUMPER WIRE ASSEMBLY NEW OIL PRESSURE SWITCH ASSEMBLY DB/LG DOT / CIRCUIT NO. 258 VEHICLE WIRING HARNESS 20 OHMS OIL PRESSURE SWITCH NORMALLY OPEN CLOSES AT 4.57.5 PSI GAUGE READS APPROXIMATELY MID-SCALE WHEN SWITCH CLOSES OIL PRESSURE INDICATING SYSTEM SCHEMATIC AFTER REWORK T8-9491~A Figure 5 Article 88-5-14 PAGE 38