TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 384 of 1205
TM 9-2320-387-24-l INSTRUMENTS CIRCUIT . DIAGNOSTIC FLOWCHART KNOWN INFO WIRING OK POSSIBLE PROBLEMS PROTECTIVE CONTROL BOX BRAKE WARNING PRESSURE SWlTCH PARKING BRAKE SWITCH KNOWN INFO WIRING OK PCB OK BRAKE WARNING VALVE SWlTCH OK POSSIBLE PROBLEMS PARKING BRAKE SWITCH KNOWN INFO PROTECTIVE CONTROL BOX OK WIRING OK POSSIBLE PROBLEMS BRAKE WARNING PRESSURE SWITCH PARKING BRAKE SWITCH ZONNECT PCB BODY HARNESS. IOES THE LIGHT STAY OFF? I TESTOPTIONS TEST OPTfONS VISUAL CONNECT PARKING BRAKE SWITCH. MAKE SURE THE PARKING BRAKE IS DISENGAGED. DOES THE LIGHT STAY OFF? VISUAL REASON FOR QUESTlON When the PCB is connected, the light should not come on. If it does, the PCB is faulty. REASON FOR QUESTION The light will only come on when the parking brake switch is connected if the parking brake switch has a problem. &-@-+5&L-- --L h r 6 I I 1 REMOVE JUMPER WIRE. CONNECT BRAKE WARNING PRESSURE SWITCH. DOES LIGHT STAY OFF? rEST OPTlONS VISUAL REASON FOR QUESTION PROPORTIONING 2-330