TM-9-2320-362-14&P HMMWV Technical Manual Electrical Environmental System (EES) Download
Page 46 of 353
TM 9-2320-362-14&P Table 3-2. Unit Troubleshooting (Cont’d) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 5. ENGINE OIL PRESSURE GAGE DISPLAYS NORMAL READING AND STATUS INDICATOR ALARM AND LIGHT ARE ON (Cont’d) Step 7. Reconnect cable W66 to connector 12J2 on tach/hourmeter box . Step 8. Under engine access cover, check “T” connection on cable assembly W66 at wire 36. If “T” connection is loose, tighten connection. If “T” connection is NOT loose, replace faulty “T” connector or cable assembly W66 (para 3-26). END OF TESTING 6. ENGINE OIL PRESSURE GAGE DISPLAYS NO PRESSURE READING AND STATUS INDICATOR ALARN Condition: AND LIGHT ARE ON (REFER TO FIGURES 3-1 THRU 3-3) HMMWV engine has been running 10 to 15 minutes. Both light and alarm tests on status indicator are normal. NOTE ● Normal oil pressure is 25-50 psi. ● Before starting procedure, see para 1-1. Step 1. Disconnect cable W64 from connector 12J1 on box . Step 2. Check engine oil pressure gage reading. tach/hourmeter If engine oil pressure gage displays normal reading, go to step 3. If engine oil pressure gage does NOT display normal reading, go to step 5. Step 3. Reconnect cable W64 to connector 12J1 on tach/hourmeter box. Disconnect cable W64 from connector on shelter. 3-16