TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download

TM 9-2320-280-20-1 KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION NO YES NO YES NO YES 2-278 Change 1 STARTER CIRCUIT FROM C3, Page 2-276 C4 ROTARY SWITCH OK PCB/DISTRIBUTION BOX WIRING STARTER 1. STE/ICE-R TEST 91 (Page 2-752) 2. MULTIMETER Continuity between any of these pins indicates a short between the wires in body harness REPAIR APPROPRIATE WIRE OR REPLACE HARNESS C5 RECONNECT BODY CONNECTOR. DISCONNECT ENGINE CONNECTOR. DISCONNECT WIRE 74A AT STARTER. IS THERE AN OPEN CIRCUIT FROM SOCKET E TO SOCKET I ENGINE CONNECTOR HARNESS? Continuity between these pins indicates a short in the engine harness. REPAIR WIRES OR REPLACE HARNESS ROTARY SWITCH OK BODY HARNESS OK PCB/DISTRIBUTION BOX WIRING STARTER 1. STE/ICE-R TEST 91 (Page 2-752) 2. MULTIMETER 1. STE/ICE-R TEST 91 (Page 2-752) 2. MULTIMETER PCB/DISTRIBUTION BOX WIRING STARTER ROTARY SWITCH OK BODY HARNESS OK C6 IS THERE AN OPEN CIRCUIT FROM SOCKET E OF PCB/DISTRIBUTION BOX ENGINE CONNECTOR HARNESS TO ENGINE GROUND? Continuity indicates shorted connector in the starter solenoid. REPLACE STARTER GO TO C7, Page 2-280 RECONNECT ROTARY SWITCH. TURN SWITCH TO “STOP.” CHECK FOR OPEN CIRCUIT IN THE PCB BODY CONNECTOR HARNESS BETWEEN THE FOLLOWING SOCKETS; G-A, G-B, A-B, F-A, AND F-B. ARE THEY ALL OPEN CIRCUITS ? DIAGNOSTIC FLOWCHART