TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l DIAGNOSTIC FLOWCHART INSTRUMENTS CIRCUIT KNOWN INFO I TEST OPTtONS BRAKE LAMP DOESN’T 1. STUICE-R TEST 89 COME ON DISCONNECT WIRE 27L AT THE BRAKE WARNING LAMP. (Page 2-508) POWER AVAilABLE TO 2. MULTIMETER THE GAUGES WITH THE ROTARY SWITCH IN THE RUN POSITION, DO YOU HAVE POSSIBLE PROBLEMS BATTERY VOLTAGE AT WIRE 27L? REASON FOR QUESTION This wire provides power for I I the lamp. PARKING BRAKE SWITCH BRAKE LAMP WIRING r % D2 i TEST OPTIONS 1. STEXE-R TEST 91 (Page 2-508) DISCONNECT WIRE 67D AT BRAKE LAMP. CONNECT RED LEAD OF STE/ICE-R OR MULTIMETER TO WIRE 67. CONNECT THE BLACK LEAD TO WIRE 27. 2. MULTIMETER KNOWN INFO POWER AVAILABLE TO THE LAMP DOES THE LAMP GLOW DIMLY? POSSIBLE PROBLEMS REASON FOR QUESTION You need to know that the lamp will light. PARKING BRAKE SWITCH BRAKE LAMP WIRING r TEST OPTIONS KNOWN INFO BRAKE LAMP OK 1. STEIICE-R TEST 91 (Page 2508) 2. MULTIMETER DISCONNECT WIRE 67C AT PARKING BRAKE SWITCH. DO YOU HAVE CONTINUITY BETWEEN WIRE 67C AT THE SWITCH & WIRE 67D AT THE LAMP? REASON FOR QUESTION If either of these wires are open, the lamp circuit will not be grounded. POSSIBLE PROBLEMS PARKING BRAKE SWITCH WIRING 2-324