TM 10-3930-669-20 2-13.  ENGINE SYSTEM TROUBLESHOOTING (CONT). 3.  LOW ENGINE OIL PRESSURE (OIL PRESSURE GAUGE CONTINUOUSLY READS LESS THAN 30 TO 60 PSI [207-414 KPA]). INITIAL SETUP Tools and Special Tools Tool Kit, General Mechanic's: Automotive (Item 1, Appendix B) Multimeter (Item 2, Appendix B) STE/ICE-R (Item 14, Appendix B) References TM 10-3930-669-10 Equipment Condition Engine OFF (TM 10-3930-669-10) MAIN POWER switch OFF (TM 10-3930-669-10) Parking brake applied (TM 10-3930-669-10) Wheels chocked (TM 10-3930-669-10) KNOWN INFO TEST OPTIONS Oil level OK. Engine oil pressure test. STE/ICE-R #50. POSSIBLE PROBLEMS REASON FOR QUESTION Engine faulty. Gauge wire 5 faulty. Gauge ground wire faulty. Wire 16 faulty. Oil pressure gauge faulty. Oil pressure sensor faulty. This question eliminates a possible    problem    or    group    of possible     problems     determining where troubleshooting continues. ¬ 2-58