TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
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REASON FOR QUESTION 1. STE/ICE-R TEST 91 (PAGE 2-752) 2. MULTIMETER If the light comes on when brake warning pressure switch is connected, the brake warning pressure switch is the problem. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION NO YES NO YES 2-344 Change 1 CONNECT PARKING BRAKE SWITCH. MAKE SURE THE PARKING BRAKE IS DISENGAGED. DOES THE LIGHT STAY OFF? REMOVE JUMPER WIRE. CONNECT BRAKE WARNING PRESSURE SWITCH. DOES LIGHT STAY OFF? WIRING OK PCB/DISTRIBUTION BOX OK BRAKE WARNING VALVE SWITCH OK REPLACE PROPORTIONING VALVE REPLACE PARKING BRAKE SWITCH END OF TEST FROM 3, Page 2-342 4 5 VISUAL The light will only come on when the parking brake switch is connected. If the parking brake switch has a problem. PARKING BRAKE SWITCH INSTRUMENTS CIRCUIT DIAGNOSTIC FLOWCHART TM 9-2320-280-20-1 KNOWN INFO POSSIBLE PROBLEMS PCB/DISTRIBUTION BOX OK WIRING OK BRAKE WARNING PRESSURE SWITCH PARKING BRAKE SWITCH TEST OPTIONS