TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
Page 422 of 890
KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION REASON FOR TESTS NO YES NO YES 2-318.12 Change 1 D1 REPAIR/REPLACE WIRE 459B D2 REPLACE WIRE 583A AND/OR 569C D3 GLOWPLUGS OPEN CIRCUIT IN GLOW- PLUG CONTROLLER OR WIRING WIRING GLOWPLUG CONTROLLER 1. STE/ICE-R TEST 91 (Page 2-752) 2. MULTIMETER 1. STE/ICE-R TEST 91 (Page 2-752) 2. MULTIMETER IS THERE CONTINUITY BETWEEN DISTRIBUTION BOX ENGINE CONNECTOR HARNESS SOCKET “B” AND GLOWPLUG CONTROLLER HARNESS CONNECTOR SOCKET “3”? IS THERE CONTINUITY BETWEEN DISTRIBUTION BOX ENGINE CONNECTOR HARNESS SOCKET “A” AND GLOWPLUG CONTROLLER HARNESS CONNECTOR SOCKET “6” ? This checks the return wire from the glowplug controller to the distribution box. This checks the main power wire from the distribution box to the glowplug controller. You verified that the wiring is OK so the controller must be bad. REPLACE GLOWPLUG CONTROLLER. DOES THE ENGINE START EASILY WHEN COLD? OPEN CIRCUIT IN GLOW- PLUG CONTROLLER OR WIRING WIRING GLOWPLUG CONTROLLER DIAGNOSTIC FLOWCHART D FROM C3, Page 2-318.10 TM 9-2320-280-20-1 NO YES GO TO C, Page 2-110 NO FAULTS